Geology

Study of the planet earth, its composition, structure, physical and chemical processes, and history since its origin.


Results listed by similarity [list alphabetically]
Geology and mineral deposits of the Keweenaw Peninsula and vicinity, Michigan

Geospatial data and tabular data on the geology, structure, mines and mineral deposits, including lithology, age, tectonic setting, and stratigraphy.

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Geology and mineral resources of the North-Central Idaho Sagebrush Focal Area: Chapter C in Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming

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Geology and mineral resources of the North-Central Montana Sagebrush Focal Area: Chapter D in Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming

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Geology and mineral resources of the Sheldon-Hart Mountain National Wildlife Refuge Complex (Oregon and Nevada), the Southeastern Oregon and North-Central Nevada, and the Southern Idaho and Northern Nevada (and Utah) Sagebrush Focal Areas

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Geology and mineral resources of the Southwestern and South-Central Wyoming Sagebrush Focal Area, Wyoming, and the Bear River Watershed Sagebrush Focal Area, Wyoming and Utah

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Geology and nonfuel mineral deposits of Africa and the Middle East

Delineated areas of the world that are geologically permissive for the occurrence of undiscovered selected nonfuel mineral resources together with estimates of the quantity and quality of the resources

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Geology and nonfuel mineral deposits of Asia and the Pacific

Report on known and undiscovered nonfuel mineral deposits and resources of the Asia and Pacific region. Includes the age and type of rocks that contain the deposits, and regional exploration history.

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Geology and resource assessment of Costa Rica

Geologic map at 1:500,000 scale, digitized from USGS I-1865. Includes mines, prospects, and occurrences, permissive tracts for several mineral deposit types, and gravity anomaly contours.

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Geology and resource assessment of Costa Rica at 1:500,000 scale; a digital representation of maps of the U.S. Geological Survey's 1987 folio I-1865

Geologic units, structural features, geochemical sample points, and detailed information about the Tilaran gold mining area.

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Geology and resource assessment of the Venezuelan Guayana Shield at 1:500,000 scale

Mineral resource assessment of the Venezuelan Guayana Shield, including geologic unit map

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Geology and undiscovered resource assessment of the potash-bearing Central Asia Salt Basin, Turkmenistan, Uzbekistan, Tajikistan, and Afghanistan

Known deposits, thickness of potash-bearing units, and permissive tracts with estimates of undiscovered resources.

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Geology of the conterminous United States

A digital version of the Geologic Map of the United States, originally published at a scale of 1:2,500,000 (King and Beikman, 1974b). It excludes Alaska and Hawaii.

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Geology of the Payette National Forest and vicinity, west-central Idaho

Geologic unit contacts, faults, dikes, and folds in this area, in map form as well as geospatial datasets.

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Geology of the Prince William Sound and Kenai Peninsula region, Alaska

The region includes a significant part of one of the world’s largest accretionary complexes and a small part of the classic magmatic arc geology of the Alaska Peninsula. The map was compiled from existing mapping augmented by available new or revised data

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Geology, geochemistry and geophysics of sedimentary rock-hosted Au deposits in P.R. China

Includes data on mineral deposit locations and geochemical analyses

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Geology, geochemistry, and genesis of the Greens Creek massive sulfide deposit, Admiralty Island, southeastern Alaska

This metal ore deposit formed over a period of time in which its tectonic setting was changing, consequently it shows a range of characteristics typical of several different types of deposits. Rock geochemistry data are provided in tabular form.

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Geology, geochemistry, and geophysics of the Fry Canyon uranium/copper project site, southeastern Utah - Indications of contaminant migration

Chemical analyses of water and sediment samples, images depicting resistivity.

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Bedrock geology and mineral resources of the Knoxville 1° x 2° quadrangle, Tennessee, North Carolina, and South Carolina

Digital format for the map plate in Bulletin 1979 (Robinson et al., 1991),Bedrock Geology and Mineral Resources of the Knoxville 1°x2° Quadrangle, Tennessee, North Carolina, and South Carolina.

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Characterization of Geologic Structures and Host Rock Properties Relevant to the Hydrogeology of the Standard Mine in Elk Basin, Gunnison County, Colorado

Geological and borehole geophysical data and observations collected to characterize the basin and its surface and groundwater flow systems with primary focus on the physical characteristics of the fault vein, related mine workings, and surrounding bedrock

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Comparative geology and geochemistry of sedimentary- rock-hosted (Carlin-type) gold deposits in the People's Republic of China and in Nevada, USA (Revised version)

This small database provides information about sedimentary- rock-hosted (Carlin-type) gold deposits in China.

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Databases and simplified geology for mineralized areas, claims, mines, and prospects in Wyoming.

This data release contains mineral resource and geology data for metallic and nonmetallic mineral sites in Wyoming. Data is provided in both spreadsheet format (Microsoft Excel) and in GIS ArcView and MapInfo. Text available in PDF format.

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Digital map of surficial geology, wetlands, and deepwater habitats, Coeur d'Alene river valley, Idaho

Details of materials and geologic environments in an area where a long history of mining has enriched stream sediments in silver, lead, zinc, arsenic, antimony and mercury, copper, cadmium, manganese, and iron.

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Geochemistry, geochronology, mineralogy, and geology suggest sources of and controls on mineral systems in the southern Toquima Range, Nye County, Nevada

Geochemical analysis of rock samples in DBF tables from the PLUTO database. Maps are provided in PDF only.

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Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan mountains, Colorado

New age determinations with descriptions of sample locations and analytical details.

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GIS Data for Geology of the Payette National Forest and Vicinity, West-Central Idaho

A Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map. Data are provided in Esri file geodatabase and shapefile formats.

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Map showing geology, structure, and geophysics of the central Black Hills, South Dakota

This 1:100,000-scale digital geologic map details the complex early Proterozoic granitic rocks, early Proterozoic supracrustal metamorphic rocks, and Archean crystalline basement of the Black Hills.

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Preliminary integrated geologic map databases for the United States: Digital data for the geology of southeast Alaska

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary Integrated Geologic Map Databases for the United States: Digital data for the geology of the southern Brooks Range, Alaska

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary integrated geologic map databases for the United States: Digital data for the geology of Wrangell-Saint Elias National Park and Preserve, Alaska

GIS dataset for 'Geologic map of the Wrangell-Saint Elias National Park and Preserve, Alaska' USGS SIM 2877. The map area includes high mountains, active and ancient volcanoes, expansive ice fields, and alpine and tidewater glaciers.

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Relational database for the geology of the northern Rocky Mountains; Idaho, Montana, and Washington

Geologic map unit and lithologic descriptions used in Open File Report 2005-1235, with extensive bibliographic references to geologic literature that could not be included in the spatial database.

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Resource potential and geology of the Grand Mesa, Uncompahgre, and Gunnison (GMUG) National Forests and vicinity, Colorado

Multi-chapter report combining geologic, geochemical, geophysical, and mining activity data. Downloadable data for coal resource information only.

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Reviews of the geology and nonfuel mineral deposits of the world

These regional reports are designed to inform the non-earth scientist about the regional locations and general geologic setting of known deposits of major nonfuel mineral commodities.

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Spatial databases for the geology of the Northern Rocky Mountains - Idaho, Montana, and Washington

The spatial databases represent the original content of 43 published geologic maps, provide normalized map unit descriptions, and provide additional information and interpretation not in the original reports.

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Stratabound copper-silver deposits of the Mesoproterozoic Revett Formation, Montana and Idaho with a section on databases and spatial-data files for the geology and mineral deposits of the Revett Formation

Includes deposits, occurrences, and prospects; drill core logs and measured sections; and spatial databases for geologic maps, untested exploration areas, and permissive tracts for undiscovered mineral deposits.

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Database for Geologic and Structure Maps of the Kalispell 1 x 2 Degree Quadrangle, Montana, and Alberta and British Columbia

A Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map. Data are provided in Esri file geodatabase and shapefile formats.

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Digital Files for Northeast Asia Geodynamics, Mineral Deposit Location, and Metallogenic Belt Maps, Stratigraphic Columns, Descriptions of Map Units, and Descriptions of Metallogenic Belts

Extensive description of mineral deposits across a wide swath of the world, includes deposit models, characteristics of individual deposits, and maps

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Geochemical and mineral maps from soils of the conterminous United States: interactive web site

Interactive web site showing geochemical and mineralogical maps along with a histogram, boxplot, and empirical cumulative distribution function plot for each element or mineral whose data are provided in DS-801

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Geochemical and mineralogical maps for soils of the conterminous United States

Geochemical and mineralogical maps along with a histogram, boxplot, and empirical cumulative distribution function plot for each element or mineral whose data are provided in DS-801

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Geochemical and mineralogical maps, with interpretation, for soils of the conterminous United States

Between 2007 and 2013, the U.S. Geological Survey conducted a low-density (1 site per 1,600 square kilometers, 4,857 sites) geochemical and mineralogical survey of soils in the conterminous United States. The sampling protocol for the national-scale surve

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Geographic Information Systems (GIS) Spatial Data Compilation of Geodynamic, Tectonic, Metallogenic, Mineral Deposit, and Geophysical Maps and Associated Descriptive Data for Northeast Asia

Diverse collection of previously published GIS datasets describing geological and geophysical characteristics of this area pertinent to the study of metallic mineral resources located there.

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Geologic and aeromagnetic maps of the Fossil Ridge area and vicinity, Gunnison County, Colorado

Geologic units, structural features, and aeromagnetic anomaly map of the area

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Geologic and fossil locality maps of the west-central part of the Howard Pass quadrangle and part of the adjacent Misheguk Mountain quadrangle, western Brooks Range, Alaska

This publication includes a bedrock geologic map depicting the complex allochthonous structure of an area along the north flank of the west-central Brooks Range. A compilation of new and previously reported macro- and micro-fossil identifications and a

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Geologic and geophysical maps of the Death Valley ground-water model area, Nevada and California

Maps and geospatial data for (a) geology; (b) tectonics; (c) isostatic gravity anomaly; (d) aeromagnetic anomaly; (e) depth to pre-Cenozoic basement.

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Geologic and geophysical maps of the eastern three-fourths of the Cambria 30 x 60 degree quadrangle, central California Coast Ranges

Contains geologic, gravity anomaly, and aeromagnetic anomaly maps and the associated geologic and geophysical databases (ArcMap), as well as complete descriptions of the geologic map units and the structural relations in the mapped area.

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Geologic and geophysical maps of the El Casco 7.5′ quadrangle, Riverside County, southern California, with accompanying geologic-map database

In addition to geologic units and structural features, these data include gravity observations and horizontal gravity gradient information.

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Geophysical Characterization of Subsurface Properties Relevant to the Hydrology of the Standard Mine in Elk Basin, Colorado

To help understand the hydrogeologic controls in the basin and how they affect surface and groundwater interactions with nearby mine workings, electrical resistivity profile, self–potential, and magnetic measurement data are provided herein.

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GIS Data for Geologic and Structure Maps of the Wallace 1 x 2 Degrees Quadrangle, Montana and Idaho

A Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map. Data are provided in Esri file geodatabase and shapefile formats.

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Hydrothermal Alteration Maps of the Central and Southern Basin and Range Province of the United States Compiled From Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Data

Maps and data showing the geographic distribution of surficial minerals likely produced by hydrothermal alteration, which may indicate areas permissive of gold and copper mineral deposits.

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Maps of hydrothermal alteration in the Basin and Range province of the US

Maps and data showing the geographic distribution of surficial minerals likely produced by hydrothermal alteration, which may indicate areas permissive of gold and copper mineral deposits.

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Metallogenic belt and mineral deposit maps of northeast Asia

This report contains explanatory material and summary tables for lode mineral deposits and placer districts and metallogenic belts of Northeast Asia.

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Porphyry copper deposits of the world: database, maps, and preliminary analysis

A compilation of worldwide mineral deposits of this type. This older version was revised and updated in OFR-2008-1155.

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Prospect- and Mine-Related Features from U.S. Geological Survey 7.5- and 15-Minute Topographic Quadrangle Maps of the United States

Locations and characteristics of map symbols pertinent to mining appearing on historical USGS topographic maps. Data are provided in Esri file geodatabase and shapefile formats.

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Prospect- and mine-related features on USGS topographic maps

Symbols indicating mining-related features digitized from historical USGS topographic maps in the western part of the conterminous US. Includes prospect pits, mine shafts and adits, quarries, open-pit mines, tailings piles and ponds, gravel and borrow pit

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1998 Assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States

Estimates of the tonnages and amounts of contained metal in undiscovered deposits, mineral deposit types.

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40Ar/39Ar data for: Characteristics and 40Ar/39Ar geochronology of the Erdenet Cu-Mo deposit, Mongolia

Full raw argon isotopic data for samples from this deposit. Data are provided in CSV format.

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40Ar/39Ar Isotopic Data and Ages for Rocks from the Yukon-Tanana Upland of Eastern Alaska and the Northern Aleutian Range of South-Central Alaska

40Ar/39Ar isotopic data and ages for rocks from this area to support geological studies of the mineralization history of deposits in this area. Data are provided in CSV format.

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A compilation of K-Ar-ages for southern California

Conventional K-Ar ages for granitic, volcanic, and metamorphic rocks collected in this area.

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A Microsoft Windows version of the MARK3 Monte-Carlo mineral resource simulator

Software for mineral resource assessments

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A summary of data collected by the U.S. Geological Survey at Dasht-e-Nawar, Afghanistan, in support of lithium exploration, June-September 2014

USGS collaboration included providing analysis of Landsat imagery; gravity measurements of sediment and rock samples; oversight of passive seismic data collection and subsequent analysis; and analysis of the chemistry and mineralogy of subsurface samples.

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Acid-rock drainage at Skytop, Centre County, Pennsylvania, 2004

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Active mines and mineral plants in the US

Mine plants and operations for commodities monitored by the National Minerals Information Center of the USGS. Operations included are those considered active in 2003 and surveyed by the USGS.

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Aggregate resource availability in the conterminous United States, including suggestions for addressing shortages, quality, and environmental concerns

Presentation materials discussing types of aggregate, the occurrence of good-quality aggregate, and pointing out where good-quality aggregate is limited. Societal and environmental issues that limit aggregate development are also discussed. Data are provided in PDF and Microsoft PowerPoint.

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Airborne electromagnetic and magnetic survey data and inverted resistivity models, Cedar Rapids, Iowa, May 2017

Airborne electromagnetic and magnetic survey data were collected in 2017 along 347 line kilometers. Includes processed AEM and magnetic data and inverted resistivity depth sections. Data are provided in CSV format.

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Airborne electromagnetic and magnetic survey data from the western Hualapai Indian Reservation near Grand Canyon West and Peach Springs, Arizona, 2018

Airborne electromagnetic (AEM) and magnetic survey data along 1,637 line-km at a nominal flight height of 30m above terrain (averaging 53m), with nominal line spacing 1 km or 4 km. Data provided are minimally processed AEM and magnetic measurements, fully processed AEM data were used to develop an included resistivity model.

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Airborne electromagnetic and magnetic survey data of the San Juan-Silverton Caldera complex, Silverton, Colorado, 2019

Airborne electromagnetic and magnetic survey data were collected during 2019 along 1,467 line-kilometers in this area. The survey was flown at a mean flight height of 140 meters (m) above terrain and line spacings ranging from 150 m to 600 m. Data are provided in CSV and shapefile formats.

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Airborne electromagnetic and magnetic survey data, Silverton, Colorado, 2019

Airborne electromagnetic and magnetic survey data collected during April and May 2019 along 1,467 line-kilometers in this area. Data are provided in netCDF format.

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Airborne electromagnetic and magnetic survey data, southeastern San Joaquin Valley near Cawelo, California, 2016

Airborne electromagnetic (AEM) and magnetic survey data to support groundwater salinity mapping and hydrogeologic framework development. Data are provided in CSV format.

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Airborne electromagnetic and magnetic survey, southwestern San Joaquin Valley near Lost Hills, California, 2016

Airborne electromagnetic (AEM) and magnetic survey data in this area to aid groundwater studies. Includes inverted resistivity model. Data are provided in CSV, plotted sections provided in PDF.

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Airborne Electromagnetic and Magnetic Survey, Yellowstone National Park, 2016 - Minimally Processed Data

Airborne electromagnetic and magnetic survey data were collected during 2016 along 4,212 line-kilometers over this area. The survey was flown with a nominal line spacing of 450 meters or less, and mean flight height about 48 m providing depth of investigation about 500m. Data are provided in CSV format, flight lines in shapefile format.

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Airborne electromagnetic data and processing within Leach Lake Basin, Fort Irwin, California

Releases airborne survey data, resistivity cross-sections and depth slices derived from data inversion. Resulting resistivity models confirm geologic framework, constrain hydrostratigraphy and depth to basement, and reveal fault and fold distribution.

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Airborne Electromagnetic Survey Processed Data and Models Data Release, Yellowstone National Park, Wyoming, 2016

Airborne electromagnetic (AEM) and magnetic survey data were collected in 2016 along 4,212 line-kilometers over this area as part of a study of the subsurface geologic structure and geothermal and groundwater resources of Yellowstone National Park. Data are provided in CSV format.

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Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, November 2018 - February 2019

Airborne electromagnetic, magnetic, and radiometric data were acquired in 2018-2019 along 16,816 line-kilometers flown at a nominal sensor flight height of 30 m above terrain with 6- to 12-kilometer spaced east-west flight lines to understand subsurface geologic structure and inform hydrologic models. Data are provided in CSV and GXF grid formats. Flight lines are provided in shapefile format.

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Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, November 2019 - March 2020

Airborne electromagnetic, magnetic, and radiometric data were acquired from 2019 to 2020 along 24,030 line-kilometers over the Mississippi Alluvial Plain. Survey was flown at a nominal height of 120 m above terrain with 6-kilometer spaced east-west flight lines. Data are provided in ASEG-GDF2 format.

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Airborne electromagnetic, magnetic, and radiometric survey, Shellmound, Mississippi, March 2018

Airborne electromagnetic, magnetic, and radiometric data were acquired in 2018 along 2,364 line-kilometers in this area at anominal sensor flight height of 30 m above terrain with 250 to 1,000-meter spaced flight lines. Data are provided in GXF grid, CSV, and GeoTiff formats.

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Airborne electromagnetic, magnetic, and radiometric survey, upper East River and surrounding watersheds near Crested Butte, Colorado, 2017

Airborne electromagnetic, magnetic, and radiometric data collected in 2017 over 1,984 line-kilometers in this area. Data include inverted resistivity and IP models as well. Data are provided in CSV format.

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Airborne magnetic and radiometric survey of the Wet Mountains and surrounding region, Custer and Fremont Counties, south-central Colorado, 2021

Digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey of this area. A total of 17,032 kilometers were flown along the lines, covering a 2,200 square-kilometer irregular area.

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Alabama geologic map data

A GIS database of geologic units and structural features in Alabama, with lithology, age, data structure, and format written and arranged just like the other states.

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Alaska geologic map data

A GIS database of geologic units and structural features in Alaska, with lithology, age, data structure, and format written and arranged just like the other states.

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Alaska Resource Data File

A comprehensive database of Alaskan mineral deposits compiled from the published literature and from unpublished reports and data from industry, the US Bureau of Land Management, and USGS.

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Alaska Resource Data File (ARDF)

A database of mines, prospects, and mineral occurrences in Alaska compiled from published and unpublished sources from industry, U.S. Bureau of Mines, USGS, and other government and private sources. Data are provided in FileMaker, CSV, KML, Esri file geodatabase, and GeoPackage formats.

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An exploration in mineral supply chain mapping using tantalum as an example

Investigates the complexity of mineral and metal supply chains in general and shows how they can be mapped. A supply chain is made up of all the manufacturers, suppliers, and information networks supplying materials and parts for production.

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An index to PGE-Ni-Cr deposits and occurrences in selected mineral-occurrence databases (original report)

A compendium of references to previously published databases and database records that describe PGE, nickel, and chromium deposits and occurrences. These data show where to obtain more detailed information about each deposit or occurrence.

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An index to PGE-Ni-Cr deposits and occurrences in selected mineral-occurrence databases (web-accessible database)

A compendium of references to previously published databases and database records that describe PGE, nickel, and chromium deposits and occurrences. These data show where to obtain more detailed information about each deposit or occurrence.

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An updated X-ray diffractogram library of geologic materials

An updated library of X-ray powder diffraction data intended for qualitative or full-pattern quantitative mineralogical analysis of geologic materials. These data are meant to accompany RockJock, a USGS program for quantitative analysis of mineralogy. However, this library of diffractograms may be used effectively for quantitative mineralogical analysis of geologic materials using other programs that utilize full-pattern summation. Data are provided in CSV format.

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Antimony

Antimony’s leading use is as a fire retardant in safety equipment and in household goods such as mattresses. The U.S. Government has considered antimony to be a critical mineral mainly because of its use in military applications.

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Antimony: a flame fighter

Explains how and where antimony resources form and concentrate and how they are used and interact with the environment to affect human and ecosystem health. Discusses supply and demand trends and where undiscovered sources of antimony might be found.

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Ar/Ar geochronology of samples from the Tonopah, Divide, and Goldfield districts, Nevada

Ar/Ar data are reported from minerals and rocks that were collected as part of a mineral resource investigation of this area. Data are provided in CSV format.

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Argon and geochemical data for: 40Ar/39Ar geochronology and petrogenesis of the Table Mountain Shoshonites, Golden, CO

Observational data supporting Argon-Argon geochronological analysis, along with geochemical analyses of basalt samples from this area. Data are provided in CSV format.

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Argon and SHRIMP-RG Data for Magmatic Steam Alunite, Sericite, and Zircon from Alunite Ridge and Deer Trail Mountain, Marysvale, Utah

Samples of vein-type magmatic-steam alunite were collected from five mines and prospects in this area. Analysis by the 40Ar/39Ar method was conducted to constrain the timing and duration of magmatic activity affecting underlying rocks. In addition, a sample of a highly altered rhyolitic quartz porphyry dike was analyzed to determine a radiometric U/Pb date and quantify trace element concentrations. Data are provided in CSV format.

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Argon data for Amazon Craton

Ar/Ar data for samples that record the mineralization of this area. Data are provided in CSV format.

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Argon data for Central Anatolian Ophiolite

Ar/Ar data are for samples that record the metamorphic deformation of the ophiolite. Data are provided in CSV format.

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Argon data for Central Andes (Domeyko Range, Chile)

Ar/Ar data is for samples that record the sedimentation of this area to understand the geologic history of the area. Data are provided in CSV format.

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Argon data for enriched MORB from the 8° 20' N seamount chain

Geochronological data from a 40Ar/39Ar analysis of mid-ocean ridge basalt material obtained from this area.to understand the volcanic history of the area. Data are provided in CSV format.

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Argon data for HD-B1 intercalibration

This data release includes 40Ar/39Ar intercalibration data from the U.S. Geological Survey for neutron fluence monitors HD-B1 (Heidelberg biotite) and FCs (Fish Canyon sanidine). Data are provided in CSV format.

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Argon data for Hugub Area, Kesem-Kebena-Dulecha, Ethiopia

Argon geochronology data for tephra, to help in archeological studies. Data are provided in CSV format.

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Argon data for Klamath Mountains

Ar/Ar analysis of samples that record the mineralization of orogenic gold deposits in this area. Data are provided in CSV format.

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Argon data for Nepal

Ar/Ar data for samples that record the thermal history of this area. Data are provided in CSV format.

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Argon data for Poncha Pass Geologic Map

Full raw argon isotopic data for samples presented in a geologic map of the area. Data are provided in CSV format.

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Argon data for Santa Cruz Basin

40Ar/39Ar data from samples in this area to provide age constraints on units in the relevant geologic mapping. Data are provided in CSV and shapefile formats.

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Argon data for Southern Patagonian Andes

Ar/Ar data for samples that record the detrital sedimentary record of the basin. Data are provided in CSV format.

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Argon data for Yellow Pine

Ar/Ar data for samples that record the mineralization of the area. Data are provided in CSV format.

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Argon data for: Elemental, isotopic, and geochronological variability in Mogollon-Datil Volcanic Province, New Mexico

Ar/Ar elemental and isotopic data supporting studies of the geologic history this area. Data are provided in CSV format.

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Argon geochronology data for eastern Bhutan

Ar/Ar data provides time constraints for the cooling of rocks in the study area. Data are provided in CSV format.

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Argon geochronology data for La Garita caldera

Geochronology data to distinguish between and understand the origins of the units erupted from the La Garita caldera. Data are provided in CSV format.

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Argon geochronology data for Multiproxy Cretaceous-Paleogene boundary event stratigraphy: an Umbria-Marche basin-wide perspective

Geochronology data to determine the geologic history of these deposits. Data are provided in CSV format.

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Argon geochronology data from the Austroalpine-Pennine boundary, Central Alps, Switzerland

Ar/Ar data from eight samples of white mica separated from rock samples collected in this area. Data are provided in CSV format.

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Arizona geologic map data

A GIS database of geologic units and structural features in Arizona, with lithology, age, data structure, and format written and arranged just like the other states.

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Arkansas geologic map data

A GIS database of geologic units and structural features in Arkansas, with lithology, age, data structure, and format written and arranged just like the other states.

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Asbestos mines, prospects, and occurrences in the US

Location and mineralogical characteristics of former mines, prospects, and occurrences of asbestos in the continental US. No asbestos producing mines are currently active. Data here are drawn from several previously published reports.

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Assessment of undiscovered copper resources associated with the Permian Kupferschiefer, Southern Permian Basin, Europe

This study delineated permissive areas for undiscovered porphyry copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content.

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Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018

Audiomagnetotelluric sounding data collected in 2018 in this area to understand subsurface geologic structure.

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Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019

Audiomagnetotelluric station locations and data to characterize subsurface rock properties important for understanding surface water and groundwater quality issues, and also to improve knowledge of deep geologic structures that may have been conduits for hydrothermal fluids that formed mineral deposits.

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Automated mapping of mineral groups and green vegetation from Landsat Thematic Mapper imagery with an example from the San Juan Mountains, Colorado

Analysis of multispectral satellite imagery allows us to identify areas covered by various types of minerals and vegetation, with results provided in image files you can use in GIS.

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Available sand and gravel resources in southern New Hampshire

Estimates thickness of sand and gravel resources available in this broad area using geology, topography, land cover, and ground-water level.

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Barite (Barium)

Barite (barium sulfate, BaSO4) is vital to the oil and gas industry because it is a key constituent of the mud used to drill oil and gas wells. Elemental barium is an additive in optical glass, ceramic glazes, and other products.

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Basement domain map of the conterminous United States and Alaska

Seventy-seven major components of the North American continent were delineated at a general scale (1:5,000,000); including the general composition, geological environment, and types of primary metals endowments that can be expected in each domain.

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Basement domain map of the conterminous US and Alaska

Seventy-seven major components of the North American continent were delineated at a general scale (1:5,000,000); including the general composition, geological environment, and types of primary metals endowments that can be expected in each domain.

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Bedrock geologic map of New Hampshire, a digital representation of Lyons and others 1997 map and ancillary files

Bedrock geology with geopolitical and hydrologic information, such as political boundaries, quadrangle boundaries, hydrologic units, and water-well data

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Bedrock geologic map of the Ashland and the northern part of the Ironwood 30 min X 60 min quadrangles, Wisconsin and Michigan

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Bedrock geologic map of the Port Wing, Solon Springs, and parts of the Duluth and Sandstone 30 X 60 minute quadrangles, Wisconsin

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Beryllium

Beryllium is a mineral commodity that is used in a variety of industries to make products that are essential for the smooth functioning of a modern society.

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Byproduct metals and rare-earth elements used in the production of light-emitting diodes—Overview of principal sources of supply and material requirements for selected markets

Investigates the expanding LED industry and it’s manufacturing complexities. The sources and supply of the select mineral commodities used and the manufacturing process and supply chain are discussed.

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California geologic map data

A GIS database of geologic units and structural features in California, with lithology, age, data structure, and format written and arranged just like the other states.

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Candidate-penetrative-fracture mapping of the Grand Canyon area, Arizona, from spatial correlation of deep geophysical features and surficial lineaments

Includes a wide variety of geological and geophysical data: geologic, aeromagnetic, and gravity maps with SLAR, DEM, TM, and NDVI imagery.

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Carbonatite whole-rock and calcite geochemistry from the Bear Lodge alkaline complex, Wyoming and Mountain Pass mine, California

Whole-rock and calcite geochemical data are reported for twelve carbonatite samples collected from the Bear Lodge alkaline complex, a known occurrence of rare earth elements. Data are provided in CSV format.

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Carbonatites of the world, explored deposits of Nb and REE

Data on 60 of the 527 known carbonatites in the world, providing reliable quantitative data on ore tonnages and grades of niobium and REE.

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Carbonatites of the world, explored deposits of Nb and REE; database and grade and tonnage models

Data on 60 of the 527 known carbonatites in the world, providing reliable quantitative data on ore tonnages and grades of niobium and REE.

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Characterization of mine waste at the Elizabeth copper mine, Orange County, Vermont

Preliminary information about the concentration, spatial distribution and mineral hosting of metals and other elements in solid materials at the Elizabeth copper mine after 50 years (or more) of weathering and oxidation.

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Chromite deposits in central part of the Stillwater Complex, Sweet Grass County, Montana: A digital database for the geologic map of the east slope of Iron Mountain

Geologic map digitized from a paper copy of plate 10 from USGS Bulletin 1015-D (Howland, 1955)

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Climax-type porphyry molybdenum deposits

Descriptive mineral deposit model, with locations of known deposits of this type and a few site characteristics.

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Coal fields of the conterminous United States - National Coal Resource Assessment updated version

This map sheet with accompanying Geographic Information System (GIS) project is an update of the existing U.S. Geological Survey (USGS) Conterminous U.S. Coal Fields map compiled using data primarily from the USGS National Coal Resource Assessment (NCRA).

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Cobalt

Cobalt is a silvery gray metal that has diverse uses due to its ferromagnetism, hardness and wear-resistance when alloyed with other metals, low thermal and electrical conductivity, high melting point, multiple valences, and color effects with silica.

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Cobalt Deposits in the United States

Descriptions of more than 60 mineral regions, mines, and mineral deposits within the United States and its territories that are reported to contain enrichments of cobalt. Data are provided in Esri file geodatabase, shapefile Microsoft Excel, and CSV formats.

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Colorado geologic map data

A GIS database of geologic units and structural features in Colorado, with lithology, age, data structure, and format written and arranged just like the other states.

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Combined results and derivative products of hydrogeologic structure and properties from airborne electromagnetic surveys in the Mississippi Alluvial Plain

Electrical resistivity results from two regional airborne electromagnetic surveys were combined to produce three-dimensional gridded models and derivative hydrogeologic products. This high-resolution information about hydrogeologic structure and properties to aid interpretations and hydrologic models. Data are provided in netCDF and GeoTiff formats.

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Comparative mineral mapping in the Colorado Mineral Belt using AVIRIS and ASTER remote sensing data

A multidisciplinary mapping and data integration project focused on long-term resource planning by the mapping and characterization of exposed surface mineralogy, including that related to hydrothermal alteration and supergene weathering of pyritic rocks.

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Compilation of Geospatial Data (GIS) for the Mineral Industries and Related Infrastructure of Africa

Locations and characteristics of important mineral and energy resource facilities, with some permissive tracts and resource assessment information. Data are provided in Esri file geodatabase and shapefile formats.

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Compilation of mineral resource data for Mississippi Valley-Type and clastic-dominated sediment-hosted lead-zinc deposits

Global compilation of information on the sediment-hosted Pb-Zn deposits traditionally called sedimentary exhalative (SEDEX) and Mississippi Valley Type (MVT) deposits, including updated updated grade and tonnage data.

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Conflict minerals from the Democratic Republic of the Congo: global tantalum processing plants, a critical part of the tantalum supply chain

Sources are discussed to identify risks to the United States associated with critical supply of this strategic mineral / metal and to provide supply chain transparency to policymakers. Focus is on the post-mining, pre-consumer-product part of the chain.

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Conflict minerals from the Democratic Republic of the Congo: global tungsten processing plants, a critical part of the tungsten supply chain

Sources are discussed to identify risks to the United States associated with critical supply of this strategic mineral / metal and to provide supply chain transparency to policymakers. Focus is on the post-mining, pre-consumer-product part of the chain.

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Connecticut geologic map data

A GIS database of geologic units and structural features in Connecticut, with lithology, age, data structure, and format written and arranged just like the other states.

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Contributions to the gold metallogeny of northern Nevada

Nevada is one of the Earth's premier gold producing regions, accounting for approximately 64 percent of the U.S and nine percent of the world total. The impact of these mines on nearby local economies and on our national balance of payments is profound, a

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Corescan Hyperspectral Core Imager, Mark III system data collected for the characterization of mineral resources near Nabesna, Alaska, 2014-2016

Hyperspectral analysis of rock samples using this equipment provide information on the composition and morphology of the minerals in the rock in microscopic detail. Data are provided as imagery in various formats.

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Cretaceous magmatic rocks of Alaska

Data derived from the 1994 map "Latest Cretaceous and Cenozoic magmatic rocks of Alaska" compiled by E.J. Moll-Stalcup, D.A. Brew, and T.L. Vallier, published (at 1:2,500,000 scale) in volume G-1 of "The Geology of Alaska" (GSA)

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Critical Mineral Resources of the United States—An Introduction

An overview of the mineral resource classifications, terms, and definitions used in PP 1802. Includes a review of the history of the use and meaning of the term “critical” applied to minerals or materials.

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Data and results for GIS-based identification of areas that have resource potential for lode gold deposits in Alaska

Analytical results and evaluated source data files of geospatial analyses for identifying areas in Alaska that may be prospective for different types of lode gold deposits, including orogenic, reduced-intrusion-related, epithermal, and gold-bearing porphyry. Results are expressed as numerical scores associated with fine-scale watersheds (12-digit hydrologic unit codes).

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Data and results for GIS-based identification of areas that have resource potential for sediment-hosted Pb-Zn deposits in Alaska

Analytical results and the evaluated source data files of a geospatial analysis for identifying areas in Alaska that may have potential for hosting mineral deposits of this type.

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Data base for undiscovered deposits of base and precious metals

Probabilistic estimates of the amounts of undiscovered gold, silver, copper, lead, and zinc in conventional types of mineral deposits in the United States.

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Data for a Comprehensive Survey of Fault Zones, Breccias, and Fractures in and Flanking the Eastern Espanola Basin, Rio Grande Rift, New Mexico

Data and analyses from 53 individual fault zones and 22 other brittle structures, such as breccia zones, joints, and veins, investigated at a total of just over 100 sites. Includes geologic maps; field observations and measurements; orientation, kinematic paleostress analyses and modeling; statistical examination of 575 fault trace lengths; mineralogy and chemistry of host and fault rocks. Data are provided in shapefile and CSV formats.

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Data release for cosmogenic beryllium-10 exposure ages of boulders deposited on moraines in the Stura Valley (southewestern Alps)

Geochronologic analysis of these boulders. Data are provide in CSV format.

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Data report for the geologic and scenic quality evaluation of selected sand and gravel sites on the Wind River Indian Reservation, Wyoming

Geographic extent of sand and gravel deposits in this area as GIS data.

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Data set of world phosphate mines, deposits, and occurrences-- Part A. Geologic Data; Part B. Location and Mineral Economic Data

Geologic and mineral resource information for 1635 deposits of phosphate worldwide

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Data to accompany U.S. Geological Survey Fact Sheet 2020-3017: Pyrrhotite distribution in the conterminous United States

Distribution of the mineral pyrrhotite, an unstable sulfide mineral, across the conterminous United States, to help inform risk assessments. Data are provided in Esri file geodatabase, shapefile, and CSV formats.

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Database of significant deposits of gold, silver, copper, lead, and zinc in the United States

It has long been recognized that the largest mineral deposits contain most of the known mineral endowment (Singer and DeYoung, 1980). Sometimes called giant or world-class deposits, these largest deposits account for a very large share of historic and cur

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Database of the Geologic Map of North America; adapted from the map by J.C. Reed, Jr. and others (2005)

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Dataset for mineral resource inventory of North Dakota

Compilation of previously published data on the distribution and character of mineral resources in this area. Data are provided in GeoTiff and shapefile formats.

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Dataset of Aggregate Producers in New Mexico

Location and descriptive data for aggregate producers in New Mexico that are believed to have been active during the period 1997-1999.

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Delaware geologic map data

A GIS database of geologic units and structural features in Delaware, with lithology, age, data structure, and format written and arranged just like the other states.

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Density and magnetic properties of selected plutons (granitoids) in the Great Basin, parts of California, Nevada, Oregon, Utah, and Arizona

Physical property measurements rocks from this area, including station identifier, geographic coordinates, rock type, density, magnetic susceptibility, remanent magnetization, declination, and inclination where available. Data are provided in CSV format. Sample locations are provided in shapefile format.

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Density and Magnetic Properties of Selected Rock Samples from the Western U.S. and Alaska

Physical properties (density, magnetic susceptibility, and remanent magnetism) from 20,000 rock samples. Data are provided in CSV format.

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Depositional Setting and Geochemistry of Phosphorites and Metalliferous Black Shales in the Carboniferous-Permian Lisburne Group, Northern Alaska

The purpose of this paper is to present new sedimentological, paleontological, and geochemical data that allow us to define the geographic and stratigraphic extent and depositional setting of these temporally unusual phosphorites.

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Description and validation of an automated methodology for mapping mineralogy, vegetation, and hydrothermal alteration type from ASTER satellite imagery with examples from the San Juan Mountains, Colorado

Raster image files indicating the interpreted alteration and mineral groups inferred using the methodology.

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Descriptive and grade-tonnage models and database for iron oxide Cu-Au deposits

Geological characteristics and resource estimates for 36 known deposits of this type worldwide.

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Descriptive model of salt-dome sulfur and contained-sulfur model for salt-dome sulfur

Descriptive mineral deposit model describing the geologic setting, physical, chemical and mineralogical characteristics of deposits of this type, including characteristics of the rocks surrounding and hosting the deposits.

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Descriptive models for epithermal gold-silver deposits: Chapter Q in <Mineral deposit models for resource assessment

Epithermal gold-silver deposits are vein, stockwork, disseminated, and replacement deposits that are mined primarily for their gold and silver contents; some deposits also contain substantial resources of lead, zinc, copper, and (or) mercury. These deposi

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Descriptive models, grade-tonnage relations, and databases for the assessment of sediment-hosted copper deposits--with emphasis on deposits in the Central Africa Copperbelt, Democratic Republic of the Congo and Zambia

This report describes compilation and evaluation results of data from the USGS global mineral assessment including new descriptive mineral-deposit and grade and tonnage models and spatial databases for deposits and occurrences, ore bodies and open pits.

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Digital bedrock geologic map of the Ashland and northern part of the Ironwood 30' x 60' quadrangles, Wisconsin and Michigan

Geologic units and structural features, GIS data files

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Digital data for construction material sources reported by the Arizona Department of Transportation in 1977 for Maricopa County, Arizona

Point features representing pit locations and attribution data captured from an atlas of map sheets and pit data sheets by the Arizona Highway Department

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Digital data for the geologic framework of the Alaska Peninsula, southwest Alaska, and the Alaska Peninsula Terrane

Geospatial data sets of the geology of the Alaska Peninsula, Alaska, including a geologic map and complete unit descriptions.

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Digital Data for the Geologic Map of the Central Beaverhead Mountains, Lemhi County, Idaho, and Beaverhead County, Montana

Detailed geologic units and structural features of this area. Data are provided in Esri file geodatabase and shapefile formats.

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Digital Data for the Reconnaissance Geologic Map for Prince William Sound and the Kenai Peninsula, Alaska

Geologic map compiled from existing sources without generalization, with new or revised data where available. Part of a statewide geologic map database effort in which the structure and content of the data is as consistent as is practical.

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Digital Data from Mineral Investigation of Sangre de Cristo Wilderness Study Area, Alamosa, Custer, Fremont, Huerfano, and Saguache Counties, Colorado, USA

Tabular and geospatial data digitized from a U.S. Bureau of Mines that presented results of a mineral resource potential survey in this area. Georeferenced scanned plates are provided in JPEG format, other data are provided in Esri file geodatabase, CSV, and shapefile formats.

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Digital database of mining-related features at selected historic and active phosphate mines, Bannock, Bear Lake, Bingham, and Caribou Counties, Idaho

Spatial database that delineates mining-related features in areas of historic and active phosphate mining.

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Digital geologic map and mineral deposits of the Lake Superior region- Minnesota, Wisconsin, Michigan

Bedrock geologic units, faults, and MRDS mineral deposit records for the area

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Digital geologic map of the Nevada Test Site and vicinity, Nye, Lincoln, and Clark Counties, Nevada, and Inyo County, California, revision 4

GIS data for geologic units and structural features, with aeromagnetic and gravity maps in PDF

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Digital geologic map of the Rosalia 1:100,000 quadrangle, Washington and Idaho: A digital database for the 1990 S.Z. Waggoner map

Geoloic units and structural features

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Digital geologic map of the Spokane 1:100,000 quadrangle, Washington and Idaho; a digital data base for the 1990 N.L. Joseph map

Geologic units, structural features, and point measurements describing the earth characteristics of this area.

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Digital map of iron sulfate minerals, other mineral groups, and vegetation of the San Juan Mountains, Colorado, and Four Corners Region derived from automated analysis of Landsat 8 satellite data

Multispectral remote sensing data acquired by the Landsat 8 Operational Land Imager (OLI) sensor were analyzed using a new, automated technique to generate a map of exposed mineral and vegetation groups in this area. Results are provided in ERDAS Imagine format.

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Digital map of iron sulfate minerals, other mineral groups, and vegetation of the western United States derived from automated analysis of Landsat 8 satellite data

Multispectral remote sensing data acquired by Landsat 8 Operational Land Imager (OLI) sensor were analyzed using an automated technique to generate surficial mineralogy and vegetation maps of the conterminous western United States. Data are provided in ERDAS Imagine format.

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Digital map of major bedrock lithologic units for the Pacific Northwest: a contribution to the Interior Columbia Basin Ecosystem Management Project

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Earth MRI data acquisition projects

Geological, geophysical, geochemical, or lidar data acquisition projects funded by the Earth Mapping Resource Initiative (Earth MRI) pertaining to the study of critical mineral resources in the US.

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Economic filters for evaluating porphyry copper deposit resource assessments using grade-tonnage deposit models, with examples from the U.S. Geological Survey global mineral resource assessment

This paper reports on a methodology that is used with estimates of undiscovered copper resources to evaluate the likely contribution that the predicted resources will make to mineral supplies in the foreseeable future.

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Electron microprobe analyses of hydrothermal muscovite crystals from gold-bearing quartz veins of the Klamath Mountains, California, 2014 and 2019

Geochemical results of in situ electron probe microanalyses of hydrothermal muscovite associated with gold-bearing quartz veins from this area. Data are provided in CSV and shapefile formats.

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Electron microprobe data for monazite and xenotime used in consideration of gold deposit formation models

Electron microprobe geochemical data that is used to showcase differences in phosphates when derived from magmatic-hydrothermal systems compared to metamorphic-hydrothermal systems to improve understanding of the mechanisms by which some mineral deposits were formed. Data are provide in CSV format.

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Electron microprobe geochemistry of apatite crystals in the iron oxide-apatite ores of the Adirondack Mountains, New York, 2016-2017

Electron microprobe analysis of apatite for major and minor element geochemistry. Apatite is the main rare earth element host in these deposits. Data are provided in CSV format.

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Electron Probe Microanalyses of apatite, rutile, and titanite from stream sediment and rock samples in the eastern Tanacross quadrangle, eastern Alaska

Electron probe data collected for apatite, rutile, and titanite to fingerprint porphyry-style mineralization near the Taurus deposit in eastern Alaska. Data are provided in CSV format.

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Estimated gravel resources of the Soucook River valley, Loudon, New Hampshire, 7.5' Quadrangle using improved techniques for assessing gravel resources in glaciofluvial deposits

Images and text from a poster session (Geological Society of America Northeastern Section) showing methodology and results for an example

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Estimates of mineral abundances based on Rietveld refinement of X-ray diffraction data from mill tailings and other ore processing materials

Results of mineral abundance estimates based on Rietveld refinement of X-ray diffraction (XRD) analyses of mill tailings and other ore processing materials from worldwide localities. Data are provided in CSV format.

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Evaporite-related potash resources: deposits and permissive tracts worldwide

Includes descriptions of 981 known occurrences and deposits as well as qualitative assessment of undiscovered resource potential in 84 permissive tracts.

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Examination of Libby, Montana, Fill Material for Background Levels of Amphibole from the Rainy Creek Complex Using Scanning Electron Microscopy and X-Ray Microanalysis

Sample locations and descriptions, with compositional analysis to constrain the natural background levels of fibrous amphiboles potentially derived from the nearby Rainy Creek Complex.

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Exposed Precambrian Bedrock in Part of Dickinson County, Michigan, and Marinette and Florence Counties, Wisconsin

Rock outcrop locations taken from geologic maps published from the 1940s until the late 1990s. Bedrock exposure locations were routinely recorded to provide both an indication of where direct observations were made, and as a guide for future investigations to expedite location of observable rock exposures. Data are provided in shapefile format.

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Field and Laboratory data of pipe scale forming in acid mine drainage pipelines at Iron Mountain and Leviathan Mines, California

Data from pipelines from 2012-2015, includes water chemistry of the acid mine drainage, mineralogy of pipe scale (by X-ray diffraction and chemical extractions), and laboratory experiment results. Data are provided in CSV format.

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Fission Track Data and Ages of Apatite and U-Pb Isotopic Data and Ages of Igneous and Detrital Zircon from Selected Rocks from the Lake Clark and Lake Iliamna Region of South-Central Alaska

Geochronological data of apatite and zircon from igneous and sedimentary rocks in this area. Data are provided in CSV format.

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Florida geologic map data

A GIS database of geologic units and structural features in Florida, with lithology, age, data structure, and format written and arranged just like the other states.

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Fluorine

Fluorine compounds are essential in numerous chemical and manufacturing processes. Fluorspar is the commercial name for fluorite (isometric CaF2), which is the only fluorine mineral that is mined on a large scale.

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Fluorine, fluorite, and fluorspar in central Colorado

Distribution of fluorine in specific age-lithologic categories, ranging from precambrian metamorphic rocks to modern soils.

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Focus areas for data acquisition for potential domestic sources of critical minerals—Rare earth elements

Explains background, data sources, and methodology used to identify focus areas for potential domestic sources of rare earth elements in non-fuel deposit types.

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Frac sand in the United States: a geological and industry overview

Discusses the physical properties of frac sand, its geologic origin and formation contributing processes, its use in industry, consumption history and a global outlook. US / Canadian producers are detailed and potential other sources delineated in a GIS

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Gallium

Gallium is a soft, silvery metallic element with an atomic number of 31 and the chemical symbol Ga. Gallium is used in a wide variety of products that have microelectronic components containing either gallium arsenide (GaAs) or gallium nitride (GaN).

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Gallium Deposits in the United States

Detailed descriptions of mineral deposits containing this commodity, including history, production, resource estimates, and geographic features. Data are provided in CSV, shapefile, Microsoft Excel, and Esri file geodatabase formats.

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Garnet Lu-Hf Ages and Isotope Data for the Stibnite, Idaho Area

Garnet Lu-Hf ages of the schist of Moores Station Formation and a cross-cutting garnetiferous felsic dike in this area. These ages provide part of the early geologic history leading up to ore deposition. Data are provided in CSV format.

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General geologic map of the world

World geology compiled by the Geological Survey of Canada at approximately 1:35,000,000 scale, specifying age (to era) and general lithology of major geologic units, with sources.

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Generalized thermal maturity map of Alaska

Data derived from the 1996 "Generalized Thermal Maturity Map of Alaska" compiled by M.J. Johnsson and D.G. Howell, published in USGS Bulletin 2142. Combines vitrinite reflectance and conodont alteration index in generalized units.

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Geochemical analyses of bauxite and associated rocks from the Arkansas bauxite region, central Arkansas

Major and trace element analytical results of samples of aluminum ore and nearby rocks in order to understand the prevalence of critical minerals there and in similar deposits. Data are provided in Microsoft Excel, CSV, and shapefile formats.

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Geochemical analyses of surface water, groundwater and springs surrounding Mount Emmons near Crested Butte, Colorado (ver. 2.0, September 2020)

Inorganic chemical analysis of surface- and groundwater and springs in this area to understand natural versus anthropogenic inputs from mineralized and hydrothermally altered areas. Data are provided in Esri file geodatabase, CSV, and shapefile formats.

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Geochemical and 40Ar/39Ar Analytical Data of Rocks from Glacier Bay National Park and Preserve

Major and trace element geochemical data and 40Ar/39Ar isotopic data and ages for rock samples collected during 2016 in this area. Data are provided in CSV format.

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Geochemical and mineralogic characterization of solids and their effects on waters in metal-mining environments, in Seal, R.R., II, and Foley, N.K., eds., Progress on geoenvironmental models for selected mineral deposit types

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Geochemical and mineralogical analyses of uranium ores from the Hack II and Pigeon deposits, solution-collapse breccia pipes, Grand Canyon region, Mohave and Coconino Counties, Arizona, USA

Whole-rock geochemistry, X-ray diffraction, and electron microscopy analyses of samples collected from the uranium ore bodies of two mined-out deposits in this area to understand the formation of this type of mineral deposit. Data are provided in Microsoft Excel, CSV, and PDF reports.

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Geochemical and mineralogical characterization of the abandoned Valzinco (lead-zinc) and Mitchell (gold) mine sites prior to reclamation, Spotsylvania County, Virginia

Geochemical data for all solid sample media, along with mineralogical data, and results of weathering experiments on Valzinco tailings and field experiments on sediment accumulation in Knights Branch.

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Geochemical and mineralogical data for soils of the conterminous United States

Systematic geochemical and mineralogical survey of soil horizons analyzed using a consistent set of methods, sample spacing 1 per 1,600 sq km.

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Geochemical and mineralogical data for soils of the conterminous United States

Systematic geochemical and mineralogical survey of soil horizons analyzed using a consistent set of methods, sample spacing 1 per 1,600 sq km.

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Geochemical and mineralogical study of the Red Mountain porphyry copper-molybdenum deposit and vicinity, Santa Cruz County, Arizona

Extensive core drilling has delineated a large, deep seated, structurally intact deposit here. Distribution of elements and minerals determined for this study provide a zoning model applicable to similar deposits and useful for resource exploration.

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Geochemical and Modal Data for Mesoproterozoic Igneous Rocks of the St. Francois Mountains, Southeast Missouri

A compilation of new and previously published geochemical and modal analyses of Mesoproterozoic igneous rocks in this area. Includes major and trace element geochemistry and mineralogical composition as well as sample locations and characteristics. Data for 618 unaltered samples and 549 altered samples are provided as Microsoft Excel and as tab-delimited text.

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Geochemical and X-ray diffraction analyses of drill core samples from the Canyon uranium-copper deposit, a solution-collapse breccia pipe, Grand Canyon area, Coconino County, Arizona

These samples and their geochemistry reflect the variation of base-metal sulfide and uranium oxide mineralization within ore zones of the Canyon deposit. The ore mineralogy, and thus rock chemistry, can vary over short intervals (centimeters). Data are provided in Microsoft Excel and CSV formats.

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Geochemical data for stream water and stream sediment samples from the northeast part of the Tanacross quadrangle, Alaska

Geochemical analyses of samples to understand which methods best delineate known mineral deposits in this area. Data are provided in CSV and shapefile formats.

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Geochemical data for the Elk Creek alkaline complex, southeast Nebraska

Analytical data from a suite of rock and mineral samples collected from drill core within the Elk Creek alkaline complex, which hosts the Elk Creek carbonatite, a multilithologic carbonatite enriched in niobium, rare earth elements (REEs), scandium, and titanium. Data are provide in CSV format.

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Geochemical data for the Thunder Mountain volcanic field and dikes in the Stibnite-Yellow Pine district region

Whole rock geochemical data for volcanic rocks in this area, both extrusive rocks and hypabyssal dikes. Major oxides and trace elements are included. Data are provided in CSV format.

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Geochemical database for the Boulder Batholith and its satellitic plutons, southwest Montana

Geochemical analyses of Cretaceous igneous intrusions in order to establish the geologic framework for world-class mineral deposits of the Butte district

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Geochemical, mineralogical, and molecular scale speciation characterization of mine wastes from the Tar Creek Superfund Site, Tri-State Mining District, Oklahoma, U.S.A.

Concentration, mineral hosts, and speciation of germanium in mine wastes from this site. Data are provided in CSV format.

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Geochemical, modal, and geochronologic data for 1.4 Ga A-type granitoid intrusions of the conterminous United States

This report presents and makes data available to ongoing petrogenetic investigations of these rocks. It develops an accurate and current portrayal of their spatial distribution in GIS format while analyzed samples are presented via Excel workbooks.

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Geochemistry of rocks and rock fabric data near the hanging wall contact to the Reef Package, Stillwater Complex, Montana, USA

Whole-rock major, minor, and trace element geochemistry of rock samples collected from diamond drill holes that intersect the textural discontinuity at the top of the Reef Package from the underground working of the Stillwater Mine. Data are provide in CSV format.

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Geochronologic data from xenoliths near the Stillwater Complex, Montana

U-Pb isotopic data collected on zircon in xenoliths from the Sliderock Mountain and Susie Peak plutons using the sensitive high-resolution ion microprobe-reverse geometry (SHRIMP-RG) at Stanford University. Data are provided in CSV format, locations are provided in shapefile format.

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Geochronology and correlation of Tertiary volcanic and intrusive rocks in part of the southern Toquima Range, Nye County, Nevada

40Ar/39Ar dating, electron microprobe analyses and geologic mapping help clarify chronology and correlations of the numerous volcanic and intrusive units exposed in the area and interpret the petrogenesis of a few of the volcanic units.

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Geochronology Database for Central Colorado

Compilation of isotopic and fission track age determinations, some previously published. Data for the tephrochronology of Pleistocene volcanic ash, carbon-14, Pb-alpha, common-lead, and U-Pb determinations on uranium ore minerals are not included.

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Geochronology of Cenozoic rocks in the Bodie Hills, California and Nevada

Presents data for mineral deposits and unaltered and hydrothermally altered volcanic rocks. Data presented were acquired in three USGS labs by three different geochronologists. Analytical methods and data derived from each lab are presented separately.

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Geologic and geophysical framework of the Santa Rosa 7.5' quadrangle, Sonoma county, California

Geologic units, structural features, magnetic and gravity anomaly contours and radiometric ages of this area

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Geologic and mineral resource map of Afghanistan

The 1:850,000 scale Afghanistan geologic and mineral resource information shown on this map is derived from digitization of the original data from Abdullah and Chmyriov (1977).

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Geologic and mineralogic controls on acid and metal-rich rock drainage in an alpine watershed, Handcard Gulch, Colorado

Mineralogical data on samples from the surface and from drill cores, with geological observations help to understand the hydrology and effects of geology on acid-rock drainage in a mineralized alpine watershed.

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Geologic datasets for weights of evidence analysis in northeast Washington--4. Mineral industry activity in Washington, 1985-1997.

Tabular presentation of mineral activities for mining and exploration in Washington during 1985 to 1997.

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Geologic field notes and geochemical analyses of outcrop and drill core from Mesoproterozoic rocks and iron-oxide deposits and prospects of southeast Missouri

Field notes, locations, rock descriptions, and geochemical analyses from a 1988 to 1994 study to facilitate new research efforts in IOCG (iron-oxide deposits in context with other iron oxide-copper ± uranium) deposit types.

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Geologic field notes, geochemical analyses, and field photographs of outcrops and rock samples from the Big Delta B-1 quadrangle, east-central Alaska

Major element oxide and trace element geochemical analyses, including those for gold, silver, and base metals, for representative rock units and for grab samples from quartz veins and mineralized zones within the quadrangle

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Geologic map of Alaska

Digital compilation and reinterpretation of published and unpublished geologic mapping of Alaska.

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Geologic map of Alaska

Digital compilation and reinterpretation of published and unpublished geologic mapping of Alaska.

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Geologic map of Alaska

Data derived from the 1980 Geologic Map of Alaska compiled by H.M. Beikman and published by the USGS. The map is a regional summary of geologic formations and units at 1:2,500,000 scale. Does not include faults, volcanoes, or correlation chart.

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Geologic map of Big Bend National Park, Texas

New geologic map to reflect mapping of late Cretaceous to Tertiary clastic sedimentary rocks, park-wide mapping of surficial deposits, and a newly revised volcanic stratigraphy.

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Geologic map of central (interior) Alaska

Geologic map and associated digital databases of central Alaska. Compilation and reinterpretation of previously published and unpublished mapping at 1:250,000 scale, with limited 1:125,000 and 1:63,360 scale mapping.

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Geologic map of metallic and nonmetallic mineral deposits, Badakhshan Province, Afghanistan, modified from the 1967 original map compilation of G.G. Semenov and others

Province contains Weka Dur, see companion report chapter B. Reproduces the topology of original Soviet maps and cross sections. Original Russian terminology and rock classification translated into modern English geologic usage as literally as possible.

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Geologic map of the Ahankashan-Rakhna basin, Badghis, Ghor, and Herat Provinces, Afghanistan, modified from the 1974 original map compilation of Y.I. Shcherbina and others

Presents one of several gold and copper deposit prospect areas in west-central Afghanistan. Reproduced topology of original Soviet maps and cross sections. Original terminology and rock classification translated literally to modern English geologic usage.

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Geologic map of the Bartlett Springs Fault Zone in the vicinity of Lake Pillsbury and adjacent areas of Mendocino, Lake, and Glenn Counties, California

Map and study intended to provide geologic information for the regional study of materials properties, earthquake shaking, landslide hazards, mineral potential, seismic velocity, and earthquake faults.

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Geologic map of the Big Delta B-1 quadrangle, east-central Alaska

Geologic mapping and U-Pb age dating of the Big Delta B-1 quadrangle provides insights into the geology and gold mineralization of the headwater region of the Goodpaster River.

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Geologic map of the Big Delta B-2 quadrangle, east-central Alaska

Geologic map of the Big Delta B-2 quadrangle, including U-Pb geochronology, correlation chart, and description of map units.

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Geologic map of the Bodie Hills, California and Nevada

Spatial geologic map with rock type, vents, arcs, landslides, etc. provided in an ESRI geodatabase and KMZ format for Google Earth viewing. Mapsheet with accompanying descriptive pamphlet is provided as a PDF. Petrographic rock summary is also included.

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Geologic map of the Christian quadrangle, Alaska

Geology of the Christian quadrangle in the Porcupine Plateau, southern Brooks Range, and Yukon Flats. Includes geologic map, fossil data, location of oil shale, and geospatial data sets.

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Geologic map of the Cook Inlet region, Alaska, including parts of the Talkeetna, Talkeetna Mountains, Tyonek, Anchorage, Lake Clark, Kenai, Seward, Iliamna, Seldovia, Mount Katmai, and Afognak 1:250,000-scale quadrangles

The map updates a major geologic map of the Cook Inlet region published in 1976 incorporating new and additional mapping and interpretation. This map is also a revision of areas of overlap with the geologic map completed for central Alaska.

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Geologic map of the east half of the Lime Hills 1:250,000-scale quadrangle, Alaska

This map, compiled from geologic mapping conducted (1985-1992) by the U.S. Geological Survey as part of the Alaska Mineral Resource Assessment Program, builds upon previous USGS work unraveling the magmatic history of the Alaska-Aleutian Range batholith.

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Geologic Map of the Great Smoky Mountains National Park Region, Tennessee and North Carolina

Bedrock and surficial geologic units and structural features in this area

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Geologic map of the Ikpikpuk River quadrangle, Alaska

Geologic map of the Ikpikpuk quadrangle, compiled from previously published and unpublished sources. This map is part of a collection of digital maps of northern Alaska, that span the transition from the Brooks Range to the Arctic coastal plain.

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Geologic map of the Kechumstuk fault zone in the Mount Veta area, Fortymile mining district, east-central Alaska

This map depicts the fundamental geologic features for the western part of the Fortymile mining district and delineates the location of known bedrock mineral prospects and their relationship to rock types and structural features.

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Geologic map of the Lookout Ridge quadrangle, Alaska

Geologic map of the Lookout Ridge quadrangle, compiled from previously published and unpublished sources. This map is part of a collection of digital maps of northern Alaska, that span the transition from the Brooks Range to the Arctic coastal plain.

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Geologic map of the Point Lay quadrangle, Alaska

Geologic map of the Point Lay quadrangle, compiled from previously published and unpublished sources. This map is part of a collection of digital maps of northern Alaska, that span the transition from the Brooks Range to the Arctic coastal plain.

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Geologic map of the Umiat quadrangle, Alaska

Geologic map of the Umiat quadrangle, compiled from previously published and unpublished sources. This map is part of a collection of digital maps of northern Alaska, that span the transition from the Brooks Range to the Arctic coastal plain.

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Geologic map of the Utukok River quadrangle, Alaska

Geologic map of the Utukok River quadrangle, compiled from previously published and unpublished sources. This map is part of a collection of digital maps of northern Alaska, that span the transition from the Brooks Range to the Arctic coastal plain.

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Geologic map of the Weka Dur gold deposit, Badakhshan Province, Afghanistan, modified from the 1967 original map compilation of M.P. Guguev and others

Weka Dur is the largest gold occurrence in Afghanistan. Map reproduces the topology of original Soviet maps and cross sections. Original Russian terminology and rock classification translated into modern English geologic usage as literally as possible.

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Geologic map of the Wrangell-Saint Elias National Park and Preserve, Alaska

Reconnaissance geologic map of the largest National Park in the US. Map area includes high mountains, active and ancient volcanoes, expansive ice fields, and alpine and tidewater glaciers. Kennecott Mine, a world-class copper deposit is located in the p

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Geological map data

Characteristics of bedrock and surficial geologic terranes and structural features at various levels of detail. The information provided here are intended for use in the synoptic study of large areas, and are likely not suitable for detailed study of geog

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Geophysical interpretations of the southern Española Basin, New Mexico, that contribute to understanding its hydrogeologic framework

Geophysical interpretation of the southern Española basin for the purpose of understanding the hydrogeologic framework including shallow faults, igneous units, and basement rocks

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Georgia geologic map data

A GIS database of geologic units and structural features in Georgia, with lithology, age, data structure, and format written and arranged just like the other states.

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Geospatial database for regional environmental assessment of central Colorado

Study focusing on the effects of historical mining on Forest Service lands in this area.

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Geospatial Files for the Geologic Map of the Stibnite Mining Area, Valley County, Idaho

Geologic map units, faults, structural lines meaning axial traces, structural points like bedding strike and dip locations, cross section lines, drill core sample locations, open pit polygons or outlines, and general mining features such as the location of an adit. Data are provided in shapefile format.

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Germanium and Indium

Germanium and indium are used in electronics devices, flat-panel display screens, light-emitting diodes, night vision devices, optical fiber, optical lens systems, and solar power arrays.

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Germanium Deposits in the United States

Detailed descriptions of mineral deposits containing this commodity, including history, production, resource estimates, and geographic features. Data are provided in CSV, shapefile, Microsoft Excel, and Esri file geodatabase formats.

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Germanium: giving microelectronics an efficiency boost

Explains how and where germanium resources form and concentrate and how they are used and interact with the environment to affect human and ecosystem health. Discusses supply and demand trends and where undiscovered sources of germanium might be found.

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Giant porphyry-related metal camps of the world

Database of large-tonnage, generally low-grade, hydrothermal deposits related to igneous intrusions emplaced at high crustal levels. Includes tri-partite classification based on deposit type, metal commodities, and source/host pluton chemistry.

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GIS and data tables for focus areas for potential domestic nonfuel sources of rare earth elements

Locations of focus areas to be used for planning and collection of geophysical, geological, and topographic (lidar) data pertaining to the study of rare earth element resources in the US.

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GIS Data (ver. 2) for Geologic Terranes of the Hailey 1 x 2 Degrees Quadrangle and the Western Part of the Idaho Falls 1 x 2 Degrees Quadrangle, South-Central Idaho

A Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map. Data are provided in Esri file geodatabase and shapefile formats.

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GIS Data for Geologic Map of Precambrian Metasedimentary Rocks of The Medicine Bow Mountains, Albany and Carbon Counties, Wyoming

Digital geospatial database for the geologic map of Precambrian metasedimentary rocks of the Medicine Bow Mountains. Data are provided in Esri file geodatabase and shapefile formats.

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GIS Data for Geologic Map of the Challis 1 x 2 Degrees Quadrangle, Idaho

A Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map. Data are provided in Esri file geodatabase and shapefile formats.

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GIS Data for Geologic Map of the Salmon National Forest and Vicinity, East-Central Idaho

A Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map. Data are provided in Esri file geodatabase and shapefile formats.

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GIS Data for the Geologic Map of the Arlington Quadrangle, Carbon County, Wyoming

Geologic map data in GeMS format for this area at 1:24,000 scale. Data are provided in Esri file geodatabase and shapefile formats.

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GIS for focus areas of potential domestic resources of 11 critical minerals: aluminum, cobalt, graphite, lithium, niobium, platinum group elements, rare earth elements, tantalum, tin, titanium, and tungsten

Geographic areas identified to target acquisition of geologic mapping, geophysical data, geochemistry, or detailed topographic information to aid research, mineral exploration, and evaluation of critical mineral potential.

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GIS, supplemental data table, and references for focus areas of potential domestic resources of critical minerals and related commodities in the United States and Puerto Rico

Broad areas within the United States to target acquisition of geologic mapping, geophysical data, or detailed topographic information to aid research, mineral exploration, and evaluation of critical mineral potential. Data are provided in Esri file geodatabase, shapefile, Microsoft Excel, and CSV formats..

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GIS-based identification of areas that have resource potential for lode gold in Alaska

Explains process by which data on rock type, minerals, geochemistry, and geophysics were analyzed to identify the potential for any lode type of gold deposits in Alaska. Includes descriptive information on the types of lode deposits studied and the results obtained from the analysis.

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GIS-based identification of areas that have resource potential for sediment-hosted Pb-Zn deposits in Alaska

Explains process by which data on rock type, minerals, geochemistry, and geophysics were analyzed to identify the potential for sediment-hosted lead-zinc deposits in Alaska. Includes descriptive information on the types of deposits studied and the results obtained from the analysis.

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GIS-based identification of areas with mineral resource potential for six selected deposit groups, Bureau of Land Management Central Yukon Planning Area, Alaska

For each deposit group, a map indicates relative density and certainty of favorable data. Tables list datasets used in analysis, parameters queried, their contribution to mineral estimates and allow further user analysis. GIS files enable spatial query.

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Global assessment of undiscovered copper resources

Deposits, prospects, and permissive tracts for porphyry and sediment-hosted copper resources worldwide, with estimates of undiscovered copper resources.

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Global distribution of selected mines, deposits, and districts of critical minerals

Approximate locations and short descriptions of mines, deposits, and districts where critical minerals are found. The critical minerals are discussed in USGS Professional Paper 1802 many of these locations are described in further detail in that report.

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Global Distribution of Selected Mines, Deposits, and Districts of Critical Minerals

Global distribution of mineral resource features for 22 minerals or mineral commodities considered critical to the economy and security of the United States as of 2017, included as part of USGS Professional Paper 1802. Data are provided in Esri file geodatabase and shapefile format.

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Global Geochemical Database for Critical Minerals in Archived Mine Samples

Chemistry and geologic information for historic ore and ore-related rock samples from mineral deposits in the United States and from archetypal deposits from 27 other countries. Data are provide in Microsoft Access, Microsoft Excel, and CSV formats.

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Global Mineral Resource Assessment

Regional locations and estimates of the probable amounts of undiscovered resources of copper, platinum-group elements, and potash in selected types of mineral deposits to depths of 1 to 3 kilometers below the surface of the earth worldwide.

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Global mineral resource assessment--porphyry copper assessment of Mexico

Includes known resources and permissive tracts with estimates of the number of undiscovered resources likely to be present in the permissive tracts.

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Global Mineral Resource Assessment-Aggregation of estimated numbers of undiscovered deposits-an R-script with an example from the Chu Sarysu Basin, Kazakhtan

This report provides a script developed in open-source statistical software, R, that aggregates undiscovered deposit estimates of a given type assuming some degree of correlation among aggregated areas, provided a user-specified correlation matrix.

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Global rare earth element occurrence database

Geologic occurrence of rare earths, including mineralogy, type of deposit or occurrence, host rocks and alteration, and any quantitative data related to size and grade from publicly available data. 3,934 locations are described, including some locations for which precise geographic coordinates are not available.

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Gold veins near Great Falls, Maryland

Mining features digitized from Plate 2 of this report. Includes locations of adits, shafts, prospect pits, and trenches.Gold discovered in this area in 1861 was worked sporadically until 1960.

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Grade and tonnage model for tungsten skarn deposits—2020 update

Using current mineral inventory and cumulative production data for worldwide tungsten skarn deposits, this report presents an updated grade and tonnage model for deposits of this type.

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Grain size, mineralogic, and trace-element data from field samples near Hinkley, California

Grain size distribution, photographic, and associated chemical and mineral analysis data for 36 sediment core and alluvium samples as well as SEM analysis on select grains from magnetic and heavy mineral separates collected in this area. Data are provided in CSV and JPEG formats with microprobe analyses presented as PDF reports with TIFF images.

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Graphite

Steelmaking and refractory applications in metallurgy use the largest amount of produced graphite; however, emerging technology uses in large-scale fuel cell, battery, and lightweight high-strength composites promise more uses.

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Graphite deposits in the United States

Locations, extent, and detailed characteristics and history of mineral deposits containing this commodity, including history of production, resource estimates, and extent of surface workings. Data are provided in Esri file geodatabase, shapefile, and CSV formats.

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Great Basin geoscience data base

A collection of geoscientific data for this area, provided in the mid-1990s using file formats in common use at that time, which are now obsolete. Much of the data is now available in formats more convenient to users of the 2020s at mrdata.usgs.gov.

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Ground conductivity measurements at selected National Wildlife Refuges, Montana and North Dakota, 2017-2018

Shallow subsurface electrical conductivity mapped at selected U.S. Fish and Wildlife Service managed lands in northeast Montana and northwest North Dakota in the winters of 2017 and 2018. Data are provided in CSV format, locations are provided in shapefile format.

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Ground-based electromagnetic survey, Shellmound, Mississippi, October 2018

Shallow soil characteristics were mapped using an electromagnetic sensor in October 2018. Data were acquired by towing the sensor on a wheeled cart behind an all-terrain vehicle (ATV), with the sensor at a height of 0.432 meters (m) above the ground surface. Data are provided in CSV format.

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Hawai`i geologic map data

A GIS database of geologic units and structural features in Hawai`i.

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Helicopter Electromagnetic and Magnetic Geophysical Survey Data for Portions of the North Platte River and Lodgepole Creek, Nebraska, June 2008

The objective of the survey was to improve the understanding of the relationship between surface water and groundwater systems critical to developing management programs for water resources.

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High-resolution aeromagnetic survey to image shallow faults, Poncha Springs and vicinity, Chaffee county, Colorado

Survey to map concealed faults that may be related to geothermal resources, such as hot springs; data given are surface locations of faults interpreted from the survey.

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Historical Files from Federal Government Mineral Exploration-Assistance Programs, 1950 to 1974

Scanned documents describing applications for Federal assistance in exploring for certain strategic and critical minerals, including where the deposits were examined what minerals were found, and whether mining had occurred.

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Hydrogeochemical investigation of the Standard Mine vicinity, upper Elk Creek basin, Colorado

Ground- and surface-water samples were collected in order to characterize the local ground-water flow system, determine metal concentrations in local ground water, and understand factors controlling the discharge of metal-rich waters from the mine.

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Hydrologic reconnaissance to identify areas of emergent groundwater, Mineral Creek, near Silverton, Colorado, June 2020

Results of a field survey of emergent groundwater in this area to help characterize subsurface rock properties important for understanding surface water and groundwater quality issues, and to improve knowledge of shallow to deep faults and vein-structures that were conduits for hydrothermal fluids that formed mineral deposits. Data are provided in KML, CSV, and shapefile formats. Images of the locations are provided in JPEG format.

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HySpex© VNIR-1800 and SWIR-384 imaging spectrometer radiance and reflectance data, with associated ASD© FieldSpecⓇ NG calibration data, collected at Cripple Creek Victor mine, Cripple Creek, Colorado, 2017

Imaging spectrometer radiance data were acquired at this open-pit mine. Resulting images are provided in a binary format with associated .hdr files.

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Idaho geologic map data

A GIS database of geologic units and structural features in Idaho, with lithology, age, data structure, and format written and arranged just like the other states.

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Illinois geologic map data

A GIS database of geologic units and structural features in Illinois, with lithology, age, data structure, and format written and arranged just like the other states.

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Imaging spectrometer reflectance data, mineral predominance map, and white mica wavelength position map, Nabesna Quadrangle, Alaska

Reflectance, mineral predominance, and white mica wavelength position data calculated from an airborne hyperspectral imaging survey of this area using a HyMap sensor in 2014. Data are provided in a format generated by the ENVI software product, CSV, and GeoTiff.

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In situ geochemical data related to the gold-quartz veins of Grass Valley, California, 2014-2015

Geochemical data for pyrite crystals and native gold from two distinct vein sets in this area to better understand paragenesis of quartz veins in orogenic gold deposits. Data are provided in CSV format.

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In situ LA-ICPMS U–Pb dating of cassiterite without a known-age matrix-matched reference material: Examples from worldwide tin deposits spanning the Proterozoic to the Tertiary

Cassiterite , a main ore mineral in tin deposits, is suitable for U–Pb isotopic dating because of its relatively high U/Pb ratios and typically low common Pb. We report a LA-ICPMS analytical procedure for U–Pb dating of

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In situ U-Pb dating of apatite and rutile from St. Francois Mountains IOA and IOCG deposits, southeast Missouri

Age dating of apatite and rutile samples from the iron oxide-apatite-rare earth element and iron oxide-copper-gold deposits hosted by the Mesoproterozoic rocks in this area. Data are provided in Microsoft Excel and CSV formats.

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Indiana geologic map data

A GIS database of geologic units and structural features in Indiana, with lithology, age, data structure, and format written and arranged just like the other states.

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Indium deposits in the United States

Descriptions of the only U.S. sites-including mining districts, mineral occurrences, and mine features-that have reported production and (or) resources of indium (In). Data are provided in CSV, Esri file geodatabase, and shapefile formats.

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Indium in zinc-lead and other mineral deposits -- A reconnaissance survey of 1118 indium analyses published before 1985

Reconnaissance summary and survey of 1118 indium analyses of a diverse suite of minerals, including monomineralic and polymineralic ores and mineral concentrates, from 12 mineral-deposit types, principally zinc-lead deposits, from 16 countries.

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Indium: bringing liquid-crystal displays into focus

Explains how and where indium resources form and concentrate and how they are used and interact with the environment to affect human and ecosystem health. Discusses supply and demand trends and where undiscovered sources of indium might be found.

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Integrated investigations of environmental effects of historical mining in the Animas River watershed, San Juan county, Colorado

Major assessment of the environmental effects of historical mining in the Animas River watershed with GIS data files, tables, and plates.

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International geoscience collaboration to support critical mineral discovery

Explains how and why an international collaboration among geoscience agencies will help the participating nations expand and diversify critical mineral supply chains.

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International mineral exploration activities from 1995 through 2004

Extensive commentary but minimal location information for more than 4000 mineral exploration targets worldwide, by year.

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Iowa geologic map data

A GIS database of geologic units and structural features in Iowa, with lithology, age, data structure, and format written and arranged just like the other states.

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Isotopic ages of rocks in the northern Front Range, Colorado

Maps, tables, and GIS data for isotopic ages determined in the northern part of the study area.

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Isotopic ratios and element concentrations of U-Pb and Sm-Nd for scheelite petrochronology

Instrument, standard, and sample data from application of in situ laser ablation-inductively coupled plasma-mass spectrometry dating of scheelite in thin section, and sample data from isotope dilution thermal ionization mass spectrometry scheelite dating. Data are provided in CSV format.

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Kansas geologic map data

A GIS database of geologic units and structural features in Kansas, with lithology, age, data structure, and format written and arranged just like the other states.

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Kentucky geologic map data

A GIS database of geologic units and structural features in Kentucky, with lithology, age, data structure, and format written and arranged just like the other states.

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Large-scale digital geologic map databases and reports of the North Coal District in Afghanistan

Coal resource maps and associated databases that have been digitally captured and maps that have been thus far converted to GIS databases

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Lead isotope determinations from sulfide mineral occurrences--Russian Far East

Data represent work completed when the study ended due to lack of funding. Geologic and site information on each specific deposit or occurrence are provided. Analytical and geologic data are summarized and site descriptions for samples analyzed are listed

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Legacy Geochemical Data from Hardcopy Records of Selected Past U.S. Geological Survey Projects

Geochemical data from selected USGS projects from the 1960s-1980s that were previously not published as digital data. Includes geochemical analyses from 36,498 samples of various types using analytical methods and instruments that were current when those studies were carried out. Data are provided in Microsoft Access, shapefile, and CSV formats.

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Lineament analysis of mineral areas of interest in Afghanistan

Lineaments derived from Thematic Mapper imagery using a manual process and those determined automatically, with GIS data.

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Lithium

Lithium, the lightest of all metals, is used in air treatment, batteries, ceramics, glass, metallurgy, pharmaceuticals, and polymers.

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Lithium Deposits in the United States

Detailed descriptions of mineral deposits containing this commodity, including history, production, resource estimates, and geographic features. Data are provided in CSV, shapefile, Microsoft Excel, and Esri file geodatabase formats.

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Lithochronologic units and mineral deposits of the Appalachian Orogen from Maine to Alabama

Geologic age, lithology, faults, and mineral deposit information (major deposits and those smaller deposits thought to be representative of the metallogenic character of the area).

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Locatable Mineral Assessment Tracts for the U.S. Geological Survey Sagebrush Mineral Resource Assessment Project

Locatable mineral resource assessment tracts (tracts of land) associated with the Department of the Interior (DOI) Sagebrush Focal Areas in Montana, Wyoming and Utah, central Idaho, and the Oregon-Nevada-Idaho border area. Data are provided in Esri file geodatabase and shapefile formats.

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Louisiana geologic map data

A GIS database of geologic units and structural features in Louisiana, with lithology, age, data structure, and format written and arranged just like the other states.

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Low-fluorine stockwork molybdenite deposits

Descriptive mineral deposit model, with locations of known deposits of this type and a few site characteristics.

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Low-Temperature Thermochronometric Data from the Revelation Mountains, Western Alaska Range, 2013-2018

Low-temperature thermochronometric data from 16 rock samples collected from this area, used to estimate cooling ages. Data are provided in CSV format.

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Magnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018

Magnetotelluric sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field to understand the geologic structure of this area.

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Magnetotelluric sounding data, stations 1-9, Taos Plateau Volcanic Field, New Mexico, 2009

Magnetotelluric sounding data collected in 2009 in this area to improve understanding of the hydrogeology of the Santa Fe Group and the nature of the sedimentary deposits comprising the principal groundwater aquifers of the Rio Grande rift.

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Magnetotelluric sounding locations, stations 23 to 46, San Luis Valley, Colorado, 2007

Magnetotelluric sounding data collected in 2007 in this area to improve understanding of the hydrogeology of the Santa Fe Group and the nature of the sedimentary deposits comprising the principal groundwater aquifers of the Rio Grande rift.

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Magnetotelluric survey to characterize the Sunnyside Porphyry Copper System in the Patagonia Mountains, Arizona

Magnetotelluric sounding data collected in 2008 in this area to help USGS understand concealed mineral resources.

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Maine geologic map data

A GIS database of geologic units and structural features in Maine, with lithology, age, data structure, and format written and arranged just like the other states.

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Major mineral deposits of the world

Regional locations and general geologic setting of known deposits of major nonfuel mineral commodities. Originally compiled in five parts by diverse authors, combined here for convenience despite likely inconsistencies among the regional reports.

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Major, minor, and trace element compositions of bulk drill core samples from the Duluth Complex

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Manganese

Manganese is used to make steel, where it serves as a purifying agent in iron-ore refining and as an alloy.

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Manganese: it turns iron into steel (and does so much more)

Explains how and where manganese resources form and concentrate and how they are used and interact with the environment to affect human and ecosystem health. Discusses supply and demand trends and where undiscovered sources of manganese might be found.

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Map of sand and gravel mines, prospects, and occurrences, and the geologic units that host them in the Wyoming Landscape Conservation Initiative (WLCI) study area, southwestern Wyoming

Comparison of the locations reported for these mineral deposits with mapped geologic units likely to host them; information comes from three different source compilations.

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Map of thorium provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Map showing areas with potential for garnet resources in bedrock and placer in the Blacktail Mountains and the Gravelly, Greenhorn, Ruby, and Snowcrest ranges of southwestern Montana

Geological data in support of mineral resource assessment

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Map showing areas with potential for talc deposits in the Gravelly, Greenhorn, and Ruby ranges and the Henrys Lake Mountains of southwestern Montana

Geologic data supporting mineral resource assessment

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Map showing extent of glaciation in the Eagle quadrangle, east-central Alaska

This map covers the Eagle 1:250,000-scale quadrangle in the northeastern part of the Yukon-Tanana Upland in Alaska. It shows the extent of five major glacial advances, former glacial lakes, and present fragmented terrace deposits related to the advances.

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Mapping the mineral resource base for mineral carbon-dioxide sequestration in the conterminous United States

Map includes GIS data for magnesium-rich ultramafic rocks

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Maryland geologic map data

A GIS database of geologic units and structural features in Maryland, with lithology, age, data structure, and format written and arranged just like the other states.

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Massachusetts geologic map data

A GIS database of geologic units and structural features in Massachusetts, with lithology, age, data structure, and format written and arranged just like the other states.

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Mesozoic magmatism and base-metal mineralization in the Fortymile mining district, eastern Alaska--Initial results of petrographic, geochemical, and isotopic studies in the Mount Veta area

Initial results of a petrographic, geochemical, and isotopic study of Mesozoic intrusive rocks and spatially associated Zn-Pb-Ag-Cu-Au prospects in the area.

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Metallogenic map of zinc, lead, and barium deposits and occurrences in Paleozoic sedimentary rocks, east-central United States

A descriptive compilation of 545 zinc, lead, and barium districts, deposits, and occurrences in Paleozoic sedimentary rocks in the eastern midwest states.

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Methods to create GIS styles with examples for lithology and time

Methods used to create several styles for lithology or geologic time, including style files for Lithclass lithologic categories, and ISC and DNAG timescales.

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Mica deposits of the Blue Ridge in North Carolina

Point locations with characteristics of mines and prospects.

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Michigan geologic map data

A GIS database of geologic units and structural features in Michigan, with lithology, age, data structure, and format written and arranged just like the other states.

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Mineral abundances within bulk and size-fractionated mine waste from the Tar Creek Superfund Site, Tri-State Mining District, Oklahoma, U.S.A.

Mineral abundances within bulk and size-fractionated mine waste from sampled historical waste piles from this area. Data are provided in CSV format.

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Mineral facilities of Africa and the Middle East

Database of mines and mineral plants through 2003

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Mineral facilities of Asia and the Pacific

This map displays over 1,500 records of mineral facilities throughout the continent of Asia and the countries of the Pacific Ocean. Each record represents one commodity and one facility type at a single geographic location. Facility types include mines, o

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Mineral facilities of Europe

This map displays over 1,700 records of mineral facilities within the countries of Europe and western Eurasia. Each record represents one commodity and one facility type at a single geographic location. Facility types include mines, oil and gas fields, an

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Mineral facilities of Latin America and Canada

Database of mines and mineral plants through 2005

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Mineral facilities of Northern and Central Eurasia

This map displays almost 900 records of mineral facilities within the countries that formerly constituted the Union of Soviet Socialist Republics (USSR). Each record represents one commodity and one facility type at a single geographic location. Facility

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Mineral Regions, Mines and Mineral Occurrences in the Carlin Area, Nevada

Locations of mines, mineral occurrences, and mining districts in this area of active gold mining, with additional information such as commodity, geology, deposit types, activity status, deposit resources, and mine production. Extent of surface workings is also included. Data are provided in Esri file geodatabase, shapefile, Microsoft Excel, and CSV formats.

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Mineral resource assessment of the Custer National Forest in the Pryor Mountains, Carbon County, south-central Montana; with a section on geophysics

Discussion of the rocks and mineral deposits in this area, including grade and tonnage estimates, with a small amount of geochemical measurements.

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Mineral resource data for Mississippi Valley-Type and clastic-dominated sediment-hosted lead-zinc deposits

Map interface and data download of Sed Zn-Pb data including KML and GIS data formats

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Mineral Resource Data System

MRDS describes metallic and nonmetallic mineral resources throughout the world. Included are deposit name, location, commodity, deposit description, geologic characteristics, production, reserves, resources, and references.

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Mineral-resources map of the circum-Pacific region, Antarctic sheet

Includes reported mineral occurrences in Antarctica, with name of deposit, geographic location, commodities, and reference.

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Mineral-resources map of the circum-Pacific region, northwest quadrant

Includes list of large-sized and remarkable mineral deposits, with name, country, geographic location, type, age of mineralization, and commodities.

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Mineralogical analyses of drill core samples from the Canyon uranium-copper deposit, a solution-collapse breccia pipe, Grand Canyon area, Coconino County, Arizona, USA

X-ray diffraction and electron microscopy analyses of drill core samples that typify the uranium-copper ore bodies of the Canyon deposit, to understand mineral deposits of this type. Data are provided in Microsoft Excel, CSV, and PDF report formats.

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Mineralogical and Chemical Data for Heavy-Mineral Concentrate Samples Collected in the Taylor Mountains Quadrangle, Alaska, 2004-2008

Geochemical and mineralogical measurements of 819 samples of heavy mineral concentrates. Data are provided in CSV format.

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Mining claim activity on Federal lands in the contiguous US and Alaska

Number and type of mine claims located on Federal lands and registered with the Bureau of Land Management, by year from 1976 through 2007.

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Minnesota geologic map data

A GIS database of geologic units and structural features in Minnesota, with lithology, age, data structure, and format written and arranged just like the other states.

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Miscellaneous geochemical data from waters in the Upper Animas River Watershed, Colorado

This report releases data for waters in which naturally occurring acid-rock drainage occurs but acid-mine drainage from historical mining continues to contribute dissolved metals further degrading preexisting water quality.

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Mississippi geologic map data

A GIS database of geologic units and structural features in Mississippi, with lithology, age, data structure, and format written and arranged just like the other states.

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Missouri geologic map data

A GIS database of geologic units and structural features in Missouri, with lithology, age, data structure, and format written and arranged just like the other states.

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Montana geologic map data

A GIS database of geologic units and structural features in Montana, with lithology, age, data structure, and format written and arranged just like the other states.

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Multi-element geochemical analyses of samples from the Mesoproterozoic Nonesuch Formation and Copper Harbor Conglomerate at the Copperwood copper deposit, Western Syncline, Michigan, USA

Geochemical analysis of drill core samples from this rock unit to facilitate geologic studies of sediment-hosted stratiform copper deposits. Data are provided in Microsoft Excel and CSV formats.

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National Geochronological Database

Radiometric ages of geological materials by K-Ar, Rb-Sr, Sm-Nd, fission track, and U-Th-Pb dating methods. A revision of DDS-14 correcting locations and providing the data in more convenient formats.

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National Geochronological Database

Radiometric ages of geological materials by K-Ar, Rb-Sr, Sm-Nd, fission track, and U-Th-Pb dating methods. A revision of DDS-14 correcting locations and providing the data in more convenient formats.

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National Mineral Resource Assessment 1998

Estimates of the tonnages and amounts of contained metal in undiscovered deposits, mineral deposit types.

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National-Scale Geophysical, Geologic, and Mineral Resource Data and Grids for the United States, Canada, and Australia: Data in Support of the Tri-National Critical Minerals Mapping Initiative

National-scale geologic, geophysical, and mineral resource raster and vector data covering the United States, Canada, and Australia. Data are provided in shapefile, CSV, Excel, and GeoTIFF formats.

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Natural aggregates of the conterminous United States

Geologic occurrence of potential sources of crushed stone and sand and gravel for use as natural aggregate. A summary of the natural aggregate industry is also included. Data are provided in Shapefile format.

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Nebraska geologic map data

A GIS database of geologic units and structural features in Nebraska, with lithology, age, data structure, and format written and arranged just like the other states.

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Nevada geologic map data

A GIS database of geologic units and structural features in Nevada, with lithology, age, data structure, and format written and arranged just like the other states.

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New Hampshire geologic map data

A GIS database of geologic units and structural features in New Hampshire, with lithology, age, data structure, and format written and arranged just like the other states.

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New Jersey geologic map data

A GIS database of geologic units and structural features in New Jersey, with lithology, age, data structure, and format written and arranged just like the other states.

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New Mexico geologic map data

A GIS database of geologic units and structural features in New Mexico, with lithology, age, data structure, and format written and arranged just like the other states.

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New U-Pb Geochronology and Geochemistry of Paleozoic Metaigneous Rocks from Western Yukon and Eastern Alaska

U-Pb zircon isotopic data generated from analyses of 40 metaplutonic and metavolcanic rocks from this area as well as whole-rock major- and trace-element geochemical data for metaigneous rocks. Data are provided in CSV format.

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New York geologic map data

A GIS database of geologic units and structural features in New York, with lithology, age, data structure, and format written and arranged just like the other states.

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Ni-Co laterite deposits of the world

Location, type, mineralogy, name, tonnage and grade, and geological setting for 120 deposits of this type. The US has no active nickel mines or nickel reserves.

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Ni-Co laterite deposits of the world-database and grade and tonnage models

Location, type, mineralogy, name, tonnage and grade, and geological setting for 120 deposits of this type. The US has no active nickel mines or nickel reserves.

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Niobium and Tantalum

Niobium and tantalum are found together in nature because they have similar physical and chemical properties. Niobium is used in high-strength steel alloys, while tantalum is used in electronic capacitors.

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Niobium and tantalum: indispensable twins

Explains how we use these chemical elements, where they come from, and characteristics of the global supply and demand for them.

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Niobium Deposits in the United States

Detailed descriptions of mineral deposits containing this commodity, including history, production, resource estimates, and geographic features. Data are provided in CSV, shapefile, Microsoft Excel, and Esri file geodatabase formats.

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North Carolina geologic map data

A GIS database of geologic units and structural features in North Carolina, with lithology, age, data structure, and format written and arranged just like the other states.

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North Dakota geologic map data

A GIS database of geologic units and structural features in North Dakota, with lithology, age, data structure, and format written and arranged just like the other states.

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Occurrence and variability of mining-related lead and zinc in the Spring River flood plain and tributary flood plains, Cherokee County, Kansas, 2009--11

One hundred years of historical mining has resulted in substantial ongoing input of cadmium, lead, and zinc into the environment. This surficial-soil sampling and coring study provides information needed to support remediation efforts.

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Ohio geologic map data

A GIS database of geologic units and structural features in Ohio, with lithology, age, data structure, and format written and arranged just like the other states.

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Oklahoma geologic map data

A GIS database of geologic units and structural features in Oklahoma, with lithology, age, data structure, and format written and arranged just like the other states.

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Online files for acid deposition sensitivity map

GIS data files Acid Deposition Sensitivity of the Southern Appalachian Assessment Area. Susceptibility to acid deposition from air pollution is categorized as low, medium, or high for each area.

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Operation Basement: Missouri Precambrian Sample Database

Sample locations, location descriptions, lithology, mineralogy, and geochronological relationships of drill holes that penetrated the buried Precambrian basement in this area. Detailed well log and cutting descriptions are included if available. Data are provided in Microsoft Access and tab-delimited text formats.

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Oregon geologic map data

A GIS database of geologic units and structural features in Oregon, with lithology, age, data structure, and format written and arranged just like the other states.

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Oxide and cation compositions of feldspar grains from drill core of the Duluth Complex, Minnesota

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Oxide and cation compositions of olivine grains from drill core in the Duluth Complex, Minnesota

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Oxide and cation compositions of pyroxene grains from drill core of the Duluth Complex, Minnesota

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Particle size characterization of water-elutriated Libby amphibole 2000 and RTI International amosite

Morphological data on fibrous mineral particles from an old vermiculite mine that has been a subject of environmental health investigations

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Pb-Pb and U-Pb data of Proterozoic to Phanerozoic cassiterite deposits in Russia

Comparative LA-ICP-MS Pb-Pb and U-Pb dating results for cassiterite from a variety of geologic settings and ages from the Russian Karelia, Siberia, and the Russian Far East. Constraining the age of cassiterite mineralization is critical for delineating robust genetic models of tin deposits. Data are provided in CSV format.

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Pennsylvania geologic map data

A GIS database of geologic units and structural features in Pennsylvania, with lithology, age, data structure, and format written and arranged just like the other states.

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Phosphate occurrence and potential in the region of Afghanistan, including parts of China, Iran, Pakistan, Tajikistan, Turkmenistan, and Uzbekistan

Locations of known phosphate occurrences in this area, with geologic units in which such deposits may occur.

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Phosphate occurrence and potential of south Asia

Locations of known phosphate occurrences in this area, with geologic units in which such deposits may occur.

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Photographs of historical mining operations in Colorado and Utah

A collection of photographs of mine sites, mining operations, and tailings taken prior to 1980 at a variety of sites throughout Colorado and Utah.

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Platinum-Group Elements

The platinum-group elements (PGEs)—platinum, palladium, rhodium, ruthenium, iridium, and osmium—are metals that have similar physical and chemical properties and tend to occur together in nature. PGEs are indispensable to many industrial applications.

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Platinum-group elements in southern Africa: mineral inventory and an assessment of undiscovered mineral resources

This study summarizes the identified mineral inventory of PGE in South Africa and Zimbabwe and estimates the potential amount of undiscovered PGE resources that may be present in these countries.

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Platinum-group elements: so many excellent properties

Includes platinum, palladium, rhodium, ruthenium, iridium, and osmium. These metals have similar physical and chemical properties and occur together in nature.

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Podiform chromite deposits

Location and characteristics of 1,124 individual mineral deposits of this type, with grade and tonnage models for chromium as well as several related elements.

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Podiform chromite deposits--database and grade and tonnage models

Location and characteristics of 1,124 individual mineral deposits of this type, with grade and tonnage models for chromium as well as several related elements.

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Porphyry copper assessment of British Columbia and Yukon Territory, Canada

GIS files representing the mineral resource assessment permissive tracts, deposits and significant prospects.

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Porphyry copper assessment of Central America and the Caribbean Basin

Study delineated permissive areas for undiscovered porphyry copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content.

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Porphyry copper assessment of East and Southeast Asia: Philippines, Taiwan (Republic of China), Republic of Korea (South Korea), and Japan

This study delineated permissive areas for undiscovered porphyry copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content.

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Porphyry copper assessment of eastern Australia

Delineated permissive areas for undiscovered porphyry copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content.

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Porphyry copper assessment of Europe, exclusive of the Fennoscandian Shield

This study delineated permissive areas for undiscovered porphyry copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content

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Porphyry copper assessment of northeast Asia: Far East Russia and northeasternmost China

This study delineated permissive areas for undiscovered porphyry copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content.

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Porphyry copper assessment of Southeast Asia and Melanesia

This study delineated permissive areas for undiscovered porphyry copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content.

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Porphyry copper assessment of the Mesozoic of East Asia--China, Vietnam, North Korea, Mongolia, and Russia

This study delineated permissive areas for undiscovered porphyry copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content.

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Porphyry copper assessment of the Tibetan Plateau, China

This study delineated permissive areas for undiscovered porphyry copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content.

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Porphyry copper assessment of western Central Asia

With extensive geological and mineral resource information here, we estimated a mean of 25 undiscovered deposits of this type in this area, with a mean estimate of 95 million metric tons of copper.

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Porphyry copper deposits and prospects in the Andes Mountains of South America

New and updated location, references, and grade and tonnage data for porphyry copper deposits in the Andes along with grade and tonnage data from the previous compilations. Data are provided in file geodatabase, shapefile, Microsoft Excel, and CSV formats.

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Porphyry copper deposits of the world

Information on porphyry copper deposits from around the world with grade and tonnage models, a general classification based on geologic setting, mineralogy, with data allowing locations of these deposits to be plotted using GIS.

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Porphyry copper deposits of the world: database, map, and grade and tonnage models

A compilation of worldwide mineral deposits of this type. This older version was revised and updated in OFR-2008-1155.

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Porphyry copper deposits of the world; database and grade and tonnage models, 2008

Revised and updated information about mineral deposit models for porphyry copper deposits to facilitate assessment of undiscovered resources

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Potash: a global overview of evaporate-related potash resources, including spatial databases of deposits, occurrences, and permissive tracts

Locations and descriptions of known occurrences, with qualitative assessment of the development potential of permissive tracts where undiscovered deposits of this type may occur.

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Potential mineral resources, Payette National Forest, Idaho; description and probabilistic estimation

Permissive tracts for a variety of types of mineral deposits, with information about deposits that have already been mined.

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Precambrian basement geologic map of Montana--An interpretation of aeromagnetic anomalies

Geologic map showing the structure and history of the basement rocks of Montana. Most of the state is covered by Phanerozoic bedrock units; the underlying basement structure must be inferred from magnetic anomaly data combined with geologic observations.

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Precambrian basement of the north Mid-Continent U.S.A.: a digital representation of the 1990 P.K. Sims map

Geologic units, structural features, drill hole locations, and structure contours

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Preliminary bedrock geologic map of the Seward Peninsula, Alaska, and accompanying conodont data

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary digital geologic map of the Penokean (early Proterozoic) continental margin in northern Michigan and Wisconsin

This map portrays the geology of Early Proterozoic rocks deposited along the southern margin of the Archean Superior craton during the Penokean orogenic cycle in northern Michigan and Wisconsin.

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Preliminary geologic map of the Chugach National Forest special study area, Alaska

Map at 1:63,360 scale shows the bedrock geology of a special study area within the Chugach National Forest, Alaska. Includes ARC/Info export files and graphics.

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Preliminary Geologic Map of the Cook Inlet Region, Alaska-- Including parts of the Talkeetna, Talkeetna Mountains, Tyonek, Anchorage, Lake Clark, Kenai, Seward, Iliamna, Seldovia, Mount Katmai, and Afognak 1:250,000-scale quadrangles

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary geologic map of the Greater Antilles and the Virgin Islands

A compilation of information from the literature, integrated to provide a seamless geologic map of the region. Two map sheets are included, a more general sheet showing the entire area and a more detailed sheet showing Puerto Rico and the Virgin Islands.

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Preliminary geologic map of the northeast Dillingham quadrangle (D-1, D-2, C-1, and C-2), Alaska

Map, report, and geospatial data on the geology of the northeastern part of the 1:250,000 scale Dillingham quadrangle, Alaska. Includes Ar40/39 radiometric ages, geologic unit descriptions, and correlation of map units.

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Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map for the Kuskokwim Bay region of southwest Alaska

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary integrated geologic map databases for the United States: Alabama, Florida, Georgia, Mississippi, North Carolina, and South Carolina

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary integrated geologic map databases for the United States: California, Nevada, Arizona, Washington, Oregon, Idaho, and Utah

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary integrated geologic map databases for the United States: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, Rhode Island and Vermont

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary integrated geologic map databases for the United States: Delaware, Maryland, New York, Pennsylvania, and Virginia

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary integrated geologic map databases for the United States: Digital data for the generalized bedrock geologic map, Yukon Flats region, east-central Alaska

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance bedrock geologic map for the northern Alaska peninsula area, southwest Alaska

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the Kodiak Islands, Alaska

The Kodiak Islands are located on the west side of the Gulf of Alaska and one of the largest areas of exposure of the flysch and melange of the Chugach terrane of southern Alaska.

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Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the lower Yukon River region, Alaska

Reconnaissance geologic map of the lower Yukon River region in southwest Alaska includes Quaternary surficial deposits on the delta plain and bedrock exposures in mountains within the delta plain and the uplands that border the delta plain.

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Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the western Aleutian Islands, Alaska

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the Yukon-Koyukuk Basin, Alaska

Reconnaissance geologic map of the Yukon-Koyukuk basin, Alaska, which is a region characterized by isolated hilly areas and low mountain ranges, separated by broad alluviated interior and coastal lowlands.

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Preliminary integrated geologic map databases for the United States: Kentucky, Ohio, Tennessee, and West Virginia

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary integrated geologic map databases for the United States: Montana, Wyoming, Colorado, New Mexico, Kansas, Oklahoma, Texas, Missouri, Arkansas, and Louisiana

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary integrated geologic map databases for the United States; Minnesota, Wisconsin, Michigan, Illinois, and Indiana

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Preliminary map of aluminum provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of chromite provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of cobalt occurrences in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of columbium (niobium) and tantalum provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of copper provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of fluorine provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of gold provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of iron provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of lead provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of manganese provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of mercury provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of nickel provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of phosphorous provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of platinum and platinum-group metal provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of rare-earth provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of the uranium provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of tin occurrence areas in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of titanium provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of tungsten provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of vanadium provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary map of zinc provinces in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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Preliminary non-fuel mineral resource assessment of Afghanistan 2007

Description and estimated amounts of resources with supporting data for use in GIS

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Preliminary scientific results of the Creede Caldera Continental Scientific Drilling Program: Rock magnetic studies of the Oligocene Creede Formation and prospects for a polarity stratigraphy

Rock magnetic studies in this area contribute to paleomagnetic stratigraphy and refine a model of ore formation.

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Provisional zircon and monazite uranium-lead geochronology for selected rocks from Vermont

Results of zircon and monazite U-Pb geochronologic analyses of 24 rock samples collected from mapped exposures identified while conducting new, detailed (1:24,000-scale) geologic or reconnaissance geologic mapping for the new state map of Vermont.

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Qualitative assessment of selected areas of the world for undiscovered sediment-hosted stratabound copper deposits

For each area in which this type of deposit may occur, we provide the main characteristics of the area, classification of known deposits by subtype, and a rank indicating the potential of the area to contain undiscovered resources.

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Qualitative Mineral Potential Map of Tungsten Skarn in the Yukon-Tanana Uplands, Eastern Alaska, USA, 2021

GIS data that map potential for tungsten skarn mineralization in permissive tracts in the Yukon-Tanana Uplands, Eastern Alaska, along with tables listing keywords and procedures used to produce the permissive tracts and score them for mineral potential. Data are provided in Esri file geodatabase, shapefile, KML and CSV formats.

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Quantitative mineral resource assessment of copper, molybdenum, gold, and silver in undiscovered porphyry copper deposits in the Andes Mountains of South America

Regional tracts of land where the geology is permissive for the occurrence of undiscovered porphyry copper deposits, with probabilistic estimates of undiscovered resources, along with tables of discovered deposits and prospects.

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Quick-start guide for version 3.0 of EMINERS-Economic Mineral Resource Simulator

Documentation for software intended to facilitate a 3-part mineral resource assessment.

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Radiometric ages of rocks from Alaska

Radiometric ages of rocks or minerals sampled from Alaska. The data were collected from professional publications and/or received from researchers and used by permission.

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Radon in soils of parts of Cameron, Hidalgo, and Willacy Counties, Texas

Analysis of soil samples in the Texas borderland area

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Rare earth element mineral deposits in the United States

Summarizes importance of rare earth elements, characteristics of REE deposits, REE-bearing minerals, and the types of mineral deposits that contain these elements.

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Rare earth element mineralogy, geochemistry, and preliminary resource assessment of the Khanneshin carbonatite complex, Helmand Province, Afghanistan

Geological setting, characteristics of the deposit itself, and detailed geochemical analyses of rocks in and around the deposit.

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Rare earth element mines, deposits, and occurrences

This dataset contains location, geologic and mineral economic data for world rare earth mines, deposits, and occurrences. The data in this compilation were derived from published and non-published sources.

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Rare earth element mines, deposits, and occurrences

Location, geologic and mineral economic data for world rare earth mines, deposits, and occurrences compiled from published and non-published sources. Geographic coordinates are provided for 577 of the 799 deposits described here.

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Rare Earth Element Occurrence Database of the Tien Shan Region, Central Asia

This inventory consists of 384 REE-RM occurrences, including 160 in Kazakhstan, 75 in Kyrgyzstan, 60 in Tajikistan, 2 in Turkmenistan, and 87 in Uzbekistan with location, mineral deposit type, geology, production, resources, and development status. Data are provided in Microsoft Excel and shapefile formats.

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Rare earth element occurrences in the United States

Detailed descriptions of more than 200 mineral districts, mines, and mineral occurrences (deposits, prospects, and showings) within the United States that are reported to contain substantial enrichment of rare earth elements.

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Rare earth elements in coal and coal fly ash

Explains the occurrence of rare earth elements in coal and coal fly ash, with notes on the potential for recovery of these elements as resources.

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Rare-Earth Elements

Because of their unusual physical and chemical properties, the REEs have diverse defense, energy, industrial, and military technology applications including glass, petroleum refining, automobiles, and magnets.

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Re-Os Geochronologic Data for Porphyry Deposits in the Yukon-Tanana Upland, Eastern Alaska

Isotopic composition and calculated geochronology in order to date the mineralizing events in these hydrothermal systems. Data are provided in CSV format.

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Reconnaissance geologic map of Kodiak Island and adjacent islands, Alaska

Contains one of the largest areas of exposure of the flysch and melange of the Chugach terrane of southern Alaska. This map and its associated digital files were compiled for use at a nominal scale of 1:500,000.

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Reconnaissance geologic map of the Duncan Canal/Zarembo Island area, southeastern Alaska

Updated bedrock geologic mapping of the area incorporating a recent airborne geophysical survey, new field work, fossils, radiometric ages, and geochemical signatures. Includes GIS data.

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Reconnaissance geologic map of the Kuskokwim Bay region, southwest Alaska

A geologic map constructed primarily from reconnaissance studies from the 1950s to 1990s. The rocks of the map area range from Proterozoic age metamorphic rocks of the Kanektok metamorphic complex to Quaternary age mafic volcanic rocks of Nunivak Island.

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Reconnaissance soil geochemistry at the Riverton Uranium Mill Tailings Remedial Action Site, Fremont County, Wyoming

The site, on the Wind River Indian Reservation, has Eastern Shoshone and Northern Arapahoe tribes concerned about groundwater and soil contamination. This effort studies geochemical soil variation and compares concentrations with levels established by EPA

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Record quality tables for the Mineral Resources Data System

Measures of quality for each of 304,643 records in the Mineral Resources Data System (MRDS) database. This analysis is intended to separate records that describe those resources well and are trustworthy from those that lack fundamental information or cannot be verified easily. Data are provided in tab-delimited text, Microsoft Excel, and SQLite. PHP code used to carry out the analysis is included for reference.

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Regional mapping of hydrothermally altered igneous rocks along the Urumieh-Dokhtar, Chagai, and Alborz Belts of western Asia using Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data and Interactive Data Language (IDL) logical oper

Regional maps of phyllic and argillic hydrothermal alteration are presented on 10 separate plates available in either low or high resolution. A GIS package includes points features for potential porphyry copper sites also provided in tabular form.

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Relation of arsenic, iron, and manganese in ground water to aquifer type, bedrock lithogeochemistry, and land use in the New England coastal basins

Geochemical data for groundwater from a variety of geologic settings.

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Reported historic asbestos mines, historic asbestos prospects, and natural asbestos occurrences in the eastern United States

Currently (2011) asbestos is not mined commercially in the US. This shows where it has been found or mined in the past.

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Reported historic asbestos mines, historic asbestos prospects, and natural asbestos occurrences in the Rocky Mountain states of the United States (Colorado, Idaho, Montana, New Mexico, and Wyoming)

Currently (2011) asbestos is not mined commercially in the US. This data set shows occurrences and historic mines.

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Reported historic asbestos mines, historic asbestos prospects, and natural asbestos occurrences in the southwestern United States (Arizona, Nevada, and Utah)

Map and data tables show location, mineralogy, geology, and relevant literature for each mine, prospect, or occurrence

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Reported historic asbestos mines, historic asbestos prospects, and other natural occurrences of asbestos in California

Currently (2011) asbestos is not mined commercially in the US. This data set shows occurrences and historic mines, and includes information on talc deposits.

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Reported Historic Asbestos Mines, Historic Asbestos Prospects, and Other Natural Occurrences of Asbestos in Oregon and Washington

Location, mineralogy, host rocks, and references for 51 natural occurrences of asbestos in Washington and Oregon, using descriptions found in the geologic literature.

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Reported historic asbestos mines, historic asbestos prospects, and other natural occurrences of asbestos in the conterminous United States

Site-by-site information on 876 natural occurrences of asbestos reported within the conterminous US. Includes location, mineralogy, geology, and relevant literature for each asbestos site. Data are provided in Microsoft Excel, shapefile, and CSV formats.

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Reported historic asbestos prospects and natural asbestos occurrences in the central United States

Currently (2011) asbestos is not mined commercially in the US. This data set describes historical mines and occurrences.

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Rhenium

Rhenium is a rare metal that has an extremely high melting point and a heat-stable crystalline structure. It is used in high-temperature superalloys, to make turbine blades for jet aircraft engines and is a catalyst for petroleum refining.

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Rhenium occurrences in the United States

Mining districts, mines, and mineral occurrences (deposits and prospects) within the United States that are reported to contain enrichments of rhenium (Re)

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Rhenium: a rare metal critical in modern transportation

Explains how and where rhenium resources form and concentrate and how they are used and interact with the environment to affect human and ecosystem health. Discusses supply and demand trends and where undiscovered sources of rhenium might be found.

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Rhode Island geologic map data

A GIS database of geologic units and structural features in Rhode Island, with lithology, age, data structure, and format written and arranged just like the other states.

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Rock Geochemistry and Mineralogy from Fault Zones and Polymetallic Fault Veins of the Central Front Range, Colorado

Data in this report will be used to better understand the processes that control epithermal mineral-deposit formation by attempting to relate the geochemistry of the primary structures that hosted hydrothermal fluid flow to their heat and fluid sources.

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Sandstone copper assessment of the Chu-Sarysu Basin, Central Kazakhstan

This study delineated permissive areas for undiscovered sandstone copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content.

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Sandstone copper assessment of the Teniz Basin, Kazakhstan

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Sediment-hosted copper deposits of the world

Characteristics of 785 deposits, including grade, tonnage, rocks, mineralogy, and references

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Sediment-hosted copper deposits of the world: Deposit models and database

Characteristics of 785 deposits, including grade, tonnage, rocks, mineralogy, and references

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Sediment-hosted stratabound copper assessment of the Neoproterozoic Roan Group, central African copperbelt, Katanga Basin, Democratic Republic of the Congo and Zambia

This study area encompasses the greatest sediment-hosted copper-cobalt province in the world, containing 152 million metric tons of copper in greater than 80 deposits.

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Sediment-hosted stratabound copper deposit model

This report describes key features; identifies tectonic-sedimentary environments; illustrates geochemical, geophysical, and geoenvironmental characteristics; evaluates deposit formation; presents exploration and assessment guides; and lists knowledge gaps

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Sediment-hosted zinc-lead deposits of the world

Map interface and data download of Sed Zn-Pb data including KML and GIS data formats

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Selenium

Selenium is a trace element in Earth's crust. Modern uses for selenium include energy-efficient windows that limit heat transfer and thin-film photovoltaic cells that convert solar energy into electricity.

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Short course introduction to quantitative mineral resource assessments

Presentation materials and notes in PDF

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SHRIMP U-Pb and LA-ICPMS U-Pb geochronologic data for igneous and metasedimentary rocks in central Idaho mineral province, U.S.A.

Geochronologic study of emplacement ages for plutons of the Cretaceous Idaho batholith and detrital zircon ages for metasedimentary rocks, west-central Idaho. Data are provided in CSV format.

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SHRIMP U-Pb geochronologic data for zircon and titanite from Mesoproterozoic rocks of the St. Francois Mountains terrane, southeast Missouri, U.S.A.

Data for a geochronologic study of Mesoproterozoic rocks in this area. Zircon, plus one sample of titanite, from fifty samples of metaigneous rocks were dated by sensitive high resolution ion microprobe (SHRIMP). Data are provided in Microsoft Excel and CSV formats.

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Solid-phase data from cores at the proposed Dewey Burdock uranium in-situ recovery mine, near Edgemont, South Dakota

Geochemical and mineralogical analysis of uranium-bearing sandstone in order to help understand mineral deposits of this type.

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South Carolina geologic map data

A GIS database of geologic units and structural features in South Carolina, with lithology, age, data structure, and format written and arranged just like the other states.

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South Dakota geologic map data

A GIS database of geologic units and structural features in South Dakota, with lithology, age, data structure, and format written and arranged just like the other states.

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Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho

Resource assessment and supporting data including permissive tracts, mineral sites in the study area, geologic units, geologic maps, stream sediment geochemistry, whole rock chemistry, airborne radiometric data, and lower frequency content EMAG2 data. Data are provided in Esri file geodatabase, shapefile, and CSV formats.

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Spatial database for a global assessment of undiscovered copper resources

Permissive tracts for porphyry coppper and sediment-hosted copper worldwide, with known deposits and results of the assessment.

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Spatial digital database for the tectonic map of southeast Arizona

Geologic map GIS which represents the original content of the published geologic map and which can be queried in many ways to produce a variety of geologic maps and derivative products.

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Spatial Digital Database of the Geologic Map of Catalina Core Complex and San Pedro Trough, Pima, Pinal, Gila, Graham, and Cochise Counties, Arizona

Geologic map information in GIS formats

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Spectroscopy of Expanded Vermiculite Products and Insulation

Descriptions and analytical data (electron microprobe, X-ray diffraction, spectral reflectance, and scanning electron microprobe analyses) for unexpanded and expanded vermiculite samples, a mineral product with commercial applications. Data are provided in CSV format. Descriptions of the samples are provided as PDF reports.

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State geologic map compilation

Digital geologic maps of the US states with consistent lithology, age, GIS database structure, and format

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Stillwater Complex Strike and Dip Database

Geologic structure strike and dip information from this area from pre-existing digital strike and dip information and from digitizing strike and dip locations from georeferenced map images. Data are provided in shapefile format.

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Stillwater Complex, Montana: Logs of core drilled by Anaconda in the Benbow area, 1969 to 1973

Scanned drill core logs and explanatory material provided in PDF format. Hand-written notes provided in CSV format. Locations provided in shapefile format.

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Stillwater Complex, Montana: Logs of core drilled by Anaconda in the Nye Basin area, 1968 to 1982

Images of graphic drill core logs showing associated drill core information, explanation for the lithology and structure sections of the logs, locations of the drill holes, and tabular data compiled from handwritten notes on the logs. Data are provided in TIFF, shapefile, and CSV formats.

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Sulfide Electron Microprobe Analyses and Petrography of Mineralized Samples from the Stratabound Sheep Creek Sediment-Hosted Zn-Pb-Ag-Sn Prospect, and SHRIMP U-Pb Zircon Data for Metaigneous Rocks in the Bonnifield Mining District, Healy Quadrangle, AK

Electron microprobe analyses of cassiterite, chalcopyrite, galena, pyrite, sphalerite, and tetrahedrite from drill core and outcrop samples at this location, and radiometric dates of rocks in this mining district. Data are provided in CSV format.

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Surficial geologic map of the Castle Mountain fault between Houston and Hatcher Pass Road, Alaska

A surficial geologic map showing the location of the Castle Mountain fault and other active or potentially active faults in the Matanuska-Susitna borough.

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Synthesis of petrographic, geochemical, and isotopic data for the Boulder batholith, southwest Montana

Geochemical and mineralogical analyses of plutonic rock samples

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Systems-deposits-commodities-critical minerals table for the earth mapping resources initiative

Describes the rationale for, and structure of, a table developed for Earth MRI that relates critical minerals and principal commodities to the deposit types and mineral systems in which they are concentrated. The hierarchical relationship between systems, deposits, commodities, and critical minerals makes it possible to define and prioritize each system-based focus area once for all of the critical minerals that it may contain.

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Table of Electron Probe Microanalyses of Native Copper and Sulfide Minerals from the White Pine Sediment-hosted Copper Deposit, Michigan

Electron microprobe geochemical data to evaluate whether unconventional critical element resources may be associated with sediment-hosted copper systems in this area. Data are provided in CSV format.

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Tables of electron probe microanalyses from the Copperwood sediment-hosted stratiform copper deposit, Michigan, USA

Electron microprobe analyses of ore minerals from this deposit in the Upper Peninsula of Michigan. Minerals include bornite, chalcocite, native copper, native silver, and pyrite, analyzed for Ag, As, Co, Cu, Fe, Hg, Ni, Pb, S, Sb, and Zn. Data are provided in CSV format.

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Tantalum Deposits in the United States

Detailed descriptions of mineral deposits containing this commodity, including history, production, resource estimates, and geographic features. Data are provided in CSV, shapefile, Microsoft Excel, and Esri file geodatabase formats.

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Tellurium

Tellurium is a rare element obtained as a byproduct of mining for other commodities whose main uses are in photovoltaic solar cells and as an additive to copper, lead, and steel alloys in various types of machinery.

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Tellurium Deposits in the United States

Detailed descriptions of mineral deposits containing this commodity, including history, production, resource estimates, and geographic features. Data are provided in CSV, shapefile, Microsoft Excel, and Esri file geodatabase formats.

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Tellurium: providing a bright future for solar energy

Explains how and where tellurium resources form and concentrate and how they are used and interact with the environment to affect human and ecosystem health. Discusses supply and demand trends and where undiscovered sources of tellurium might be found.

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Tennessee geologic map data

A GIS database of geologic units and structural features in Tennessee, with lithology, age, data structure, and format written and arranged just like the other states.

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Texas geologic map data

A GIS database of geologic units and structural features in Texas, with lithology, age, data structure, and format written and arranged just like the other states.

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The rare-earth elements: vital to modern technologies and lifestyles

Explains how and where rare-earth resources form and concentrate and how they are used and interact with the environment to affect human and ecosystem health. Discusses supply and demand trends and where undiscovered sources of rare-earths might be found.

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The State Geologic Map Compilation (SGMC) Geodatabase of the Conterminous United States

A collection of state geological maps using the same underlying database structure. Updates the preliminary state geologic map compilation released in 2005, with corrections and seven updated state geologic maps as well as seven new state geologic maps.

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Thin section images of AMAX drill core from the Stillwater Complex, Montana

Photographs and micrographs of rock taken from cores in this area. Data are provided in JPEG and CR2 formats.

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Thin section images of drill core and hand samples from the Stillwater Mine area, Stillwater Complex, Montana

Photographs and micrographs of hand samples and drill core from this area to study platinum-group element reef-type mineralization that occurs in the J-M Reef of the Stillwater Complex. Data are provided in JPEG and CR2 formats.

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Thin section images of drill core from the Crescent Creek area in the Stillwater Complex, Montana

Photographic images of thin sections of drill core from this area to study contact-type copper and nickel sulfide mineralization there. Data are provided in JPEG and CR2 formats, with a shapefile giving locations of the cores.

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Three GIS datasets defining areas permissive for the occurrence of uranium-bearing, solution-collapse breccia pipes in northern Arizona and southeast Utah

Data to determine the distribution of uranium deposits, breccia pipes, and collapse features and define areas permissible for uranium-bearing breccia pipes in northern Arizona and southeast Utah. Data are provided in shapefile format.

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TIMA-X Bright Phase Analysis of Platinum-Group Minerals in Selected Samples from the Chrome and Iron Mountain areas of the Stillwater Complex, Montana

Bright phase and energy-dispersive spectroscopic analyses were performed to evaluate platinum-group element and mineral distribution in a variety of rock types from the lower stratigraphy of the Stillwater Complex in Montana. Data are provided in CSV format, supporting analytical data are provided as PDF reports and TIFF images.

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Tin

Tin (Sn) is one of the first metals to be used by humans. Almost without exception, tin is used as an alloy. Its major uses today are for cans and containers, construction materials, transportation materials, and solder.

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Tin Deposits in the United States

Locations, extent, and detailed characteristics and history of mineral deposits containing this commodity, including history of production, resource estimates, and extent of surface workings. Data are provided in Esri file geodatabase, shapefile, and CSV formats.

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Titanium

Titanium colors paint, paper, plastic, rubber, and wallboard. Because of its strength and corrosion resistance, titanium metal and its alloys are used in the aerospace industry as well as for welding rod coatings, biological implants, and consumer goods.

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Titanium--Light, strong, and white

Explains how and where titanium resources form and concentrate and how they are used and interact with the environment to affect human and ecosystem health. Discusses supply and demand trends and where undiscovered sources of titanium might be found.

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Transient Electromagnetic Sounding Data Collected in the San Luis Valley, Colorado Near Great Sand Dunes National Park and Preserve, and Alamosa National Wildlife Preserve (Field Seasons 2007, 2009, and 2011)

Time-domain electromagnetic (TEM) soundings were made in this area to map the location of a blue clay unit as well as suspected faults. Data are provided in CSV and shapefile formats.

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Tungsten Deposits in the United States (ver. 2.0, August 2020)

Detailed descriptions of mineral deposits containing this commodity, including history, production, resource estimates, and geographic features. Data are provided in CSV, shapefile, Microsoft Excel, and Esri file geodatabase formats.

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Tungsten skarn mineral resource assessment of the Great Basin region of western Nevada and eastern California - Geodatabase

Geochemical, geophysical, geological, and mineral resource data supporting an assessment of undiscovered tungsten skarn deposits in this area. Permissive tracts and other information derived from the analysis are provided in shapefile, CSV, and Esri file geodatabase formats.

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Tungsten skarn mineral resource assessment of the Great Basin region of western Nevada and eastern California - Simulation results

Mineral resource assessment information including the input data, parameters, and results output from software that calculates the assessment. Data are provided in CSV format.

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Two-event lode-ore deposition at Butte, USA: 40Ar/39Ar and U-Pb documentation of Ag-Au-polymetallic lodes overprinted by younger stockwork Cu-Mo ores and penecontemporaneous Cu lodes

<p id="sp0015">The ore-genesis model for world-class deposits of the Butte mining district, Montana, USA, is deep pre-Main Stage porphyry Cu-Mo and overlying Main Stage Ag-Zn-Cu zoned-lode deposits, both of which formed from hydrothermal fluids driven by

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U-Pb age determinations of uraninite by electron microprobe analyses of ore samples from two solution-collapse breccia pipe uranium deposits, Grand Canyon region, northwest Arizona, USA

Electron microprobe spot analyses of U, Th, and Pb concentrations in uraninite (U oxide) particles, and corresponding calculated age determinations, measured in samples of ore from two uranium-copper breccia pipe ore bodies in this area. Data are provided in CSV format.

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U-Pb Ages, Hafnium Isotope Ratios, and Trace Element Concentrations by Laser-ablation Split Stream (LASS) Analysis of Igneous and Metamorphic Zircons from the Yukon-Tanana Upland, Eastern Alaska

U-Pb isotopic data and ages, Hf isotope data, and trace element concentrations of zircon from igneous rocks collected from this area. Data are provided in CSV format.

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U-Pb Ages, Hafnium Isotope Ratios, and Trace Element Concentrations by Laser-Ablation Split Stream (LASS) Analysis of Igneous Zircons from the Western Alaska Range

Geochronological analysis of radiogenic isotopes in rocks in this area to understand the history of formation of the rocks and may provide insight to mineral resource formation. Data are provided in CSV format.

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U-Pb and 40Ar/39Ar Geochronologic Data for Selected Rocks from the Western Alaska Range, Alaska

Isotopic data and ages for selected igneous bedrock samples collected in 2001 through 2003 from this area. Data are provided in CSV format.

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U-Pb and Ar-Ar age data and whole rock geochemistry data of igneous and metasedimentary rocks of northeast Afghanistan

Geochronological and geochemical analyses of these rocks providing information about multiple time periods of accretion, regional metamorphism, and magmatic activity. Data are provided in CSV format.

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U-Pb data for inherited cassiterite in "Tin Granites", an example from the Yazov Granite, Eastern Siberia

Comparative LA-ICPMS U−Pb dating results for zircon and cassiterite in these deposits to help understand how critical elements, like tin, are enriched in rare-metal granites. Data are provided in CSV format.

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U-Pb data for Origin of Tin Mineralization in the Sullivan Pb-Zn-Ag Deposit, British Columbia: Constraints from Textures, Geochemistry, and LA-ICP-MS U-Pb Geochronology of Cassiterite

Uranium and Thorium concentration and isotopic ratios of Uranium, Thorium, and lead in 469 cassiterite (SnO2) samples collected in the underground Sullivan Mine near Kimberley, British Columbia. These measurements improve the estimates of the timing of cassiterite ore mineralization in a classic sedimentary exhalite mineral deposit.

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U-Pb data for the Coles Hill uranium deposit, Virginia

Radiometric age measurements on mineral components within this large but undeveloped mineral deposit, to help understand its geologic history. Data are provided in CSV format. Locations are provided in shapefile format.

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U-Pb data for: In situ LA-ICPMS U-Pb dating of cassiterite without a known-age matrix-matched reference material: Examples from worldwide tin deposits spanning the Proterozoic to Tertiary

Data supporting a LA-ICPMS analytical procedure for dating cassiterite, a main ore mineral in tin deposits, with no need for an independently dated matrix-matched cassiterite standard. Data are provided in Microsoft Excel and CSV formats.

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U-Pb data for: Monazite and cassiterite U-Pb dating of the Abu Dabbab rare-metal granite, Egypt: Late Cryogenian metalliferous granite magmatism in the Arabian-Nubian Shield

Results of direct age dating on Cassiterite samples of alluvial ore concentrate from this area. Data are provided in CSV format.

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U-Pb data for: U-Pb geochronology of tin deposits associated with the Cornubian Batholith of southwest England: Direct dating of cassiterite by in situ LA-ICPMS

Geochronologic data to demonstrate a practical application of the LA-ICPMS analytical procedure for U–Pb dating of cassiterite without reliance on an independently dated matrix-matched cassiterite reference material. Data are provided in CSV and shapefile formats.

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U-Pb Dataset from late Paleozoic record of the Eastern Shelf of the Permian Basin

Radiometric ages from zircons in this area are used to investigate changes in provenance in this region as a result of a changing hydroclimate and tectonics. Data are provided in CSV format.

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U-Pb detrital zircon data for: lower Paleozoic sedimentary rocks near Silverton, CO USA

Laser ablation ICPMS U-Pb detrital zircon geochronology data to supports mapping and stratigraphic interpretations of this area. Data are provided in CSV format.

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U-Pb detrital zircon data for: Select Pennsylvanian-Triassic sedimentary rocks from Colorado

Geochronological data to understand the history of these rock formations. Data are provided in CSV format.

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U-Pb detrital zircon geochronology of cores and cuttings from selected wells in Arctic Alaska

U-Pb ages of zircon from borehole samples to determine a maximum depositional age of the geologic units and provenance of the zircon in the samples. Data are provided in CSV format.

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U-Pb geochronology and tectonic implications of a Silurian ash in the Farewell Terrane, Alaska

The Farewell terrane is an exotic continental fragment in interior Alaska that during the early Paleozoic was the site of a passive margin. We report a <sup>238</sup>U/<sup>206</sup>Pb zircon age of 432.9±3.0 Ma from a Farewell terrane ash in Mt. McKinle

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U-Pb geochronology of tin deposits associated with the Cornubian Batholith of southwest England: Direct dating of cassiterite by in situ LA-ICPMS

The Cornwall and Devon vein- and greisen-type copper and tin deposits of southwest England are spatially and genetically related to shallow-seated granitic intrusions. These late Variscan intrusions, collectively known as the Cor

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U-Pb Isotopic Data and Ages of Detrital Zircon and Volcanic Zircon Grains from the Torok and Nanushuk Formations, Arctic Alaska, 2021

U-Pb isotopic data and associated ages of zircon grains from 27 sedimentary samples and one volcanic ash sample from this area. Data are provided in CSV format.

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U-Pb Isotopic Data and Ages of Detrital Zircon from Selected Rocks from northern Yukon, Canada

Geochronological data for sedimentary and metasedimentary rocks in this area. Data are provided in CSV format.

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U-Pb Isotopic Data and Ages of Detrital Zircon from Selected Rocks from Southwestern Alaska and the Yukon-Tanana Upland and Environs of Eastern Interior Alaska and Eastern Yukon, Canada

Geochronology data obtained through radiometric dating of rocks in this area. Data are provided in CSV format.

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U-Pb Isotopic Data and Ages of Detrital Zircon Grains and Graptolite Fossil Data from Selected Rocks from the Western Alaska Range, Livengood area, and Seward Peninsula, Alaska - 2018

U-Pb isotopic data and associated ages of detrital zircon grains and fossil identifications and age assignments from a select sedimentary rocks in this area. Data are provided in CSV format.

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U-Pb Isotopic Data and Ages of Detrital Zircon Grains, Whole Rock Major and Trace-element Geochemistry, and Whole Rock Isotopic Data from Selected Rocks from the Western Alaska Range, Medfra area, and Livengood area, Alaska

U-Pb isotopic data and associated ages, whole rock major and trace-element geochemistry, and whole rock Sr, Nd, and Pb isotopic data to understand history and process of formation of these rocks. Data are provided in CSV format.

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U-Pb Isotopic Data and Ages of Titanite and Detrital Zircon from Selected Rocks from the Western Alaska Range, Alaska

U-Pb isotopic data and associated ages of titanite from one sample and detrital zircon grains from 33 sedimentary and metasedimentary rocks collected from this area. Data are provided in CSV format.

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U-Pb Isotopic Data and Ages of Zircon and Titanite from Rocks from the Western Alaska Range, Northern Aleutian Range, Taylor Mountains, and Tikchik Mountains Regions, Alaska

U-Pb isotopic data and ages of zircon and titanite from igneous and metamorphic rocks collected from this area. Data are provided in CSV format.

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U-Pb Isotopic Data and Ages of Zircon and Titanite from Rocks from the Yukon-Tanana Upland, Alaska

Uranium-lead isotopic data and crystallization ages of zircon and titanite from igneous, metamorphic, and sedimentary rocks collected from this area for geochronologic analysis. Data are provided in CSV format.

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U-Pb Isotopic Data and Ages of Zircon from the Manzano Mountains, New Mexico

Uranium-lead isotopic data and the crystallization age of zircon from a metamorphic rock from this area for geochronologic analysis. Data are provided in CSV format.

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U-Pb SHRIMP and 40Ar/39Ar geochronologic data and backscatter electron (BSE) and panchromatic cathodoluminescent (CL) imagery of sample materials for study of dikes, country rock, and alteration systems, Butte, U.S.A.

Geochronological data using several different techniques, for a multidisciplinary study of dikes, country rock, and alteration systems in which mineral deposits may form. Data are provided in Esri file geodatabase, shapefile, Microsoft Excel, and CSV formats.

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U-Pb zircon data for igneous units related to mineralization in the eastern Yukon-Tanana upland, eastern Alaska

Radiometric ages determined from analysis of zircon crystals in this area where mineral deposits are found. Data are provided in CSV format.

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U-Pb zircon data for: Cretaceous plutonic rocks of western Glacier Bay National Park and Preserve

Geochronologic analyses to determine the ages of the plutonic rocks in the Glacier Bay area. Five samples were dated by laser ablation-inductively coupled plasma mass spectrometry U-Pb methods. These analyses contribute to understanding the geologic history of this area. Sample locations and characteristics, along with measured isotopic ratios and calculated ages are provided in CSV format.

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U-Pb zircon data for: The Poncha Pass and Deadman Creek areas, northern Sangre de Cristo mountains of south-central Colorado

Raw analytical data, metadata and sample information for 20 zircon U-Pb age analyses from laser ablation-inductively coupled plasma mass spectrometry. Data are provided in CSV format.

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U-Pb zircon data for: Upper Triassic and Jurassic sedimentary rocks from Sonora, MX

Radiometric age and supporting measurements for these rocks to understand their geologic history. Data are provided in CSV format.

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U-Pb zircon geochronology data from Eocene igneous rocks in the Stibnite-Yellow Pine mining district and vicinity, Idaho

Geochronology data to determine the ages of Challis igneous rocks in this area to help understand the stratigraphy and lithologic characteristics of these igneous rocks. Data are provided in CSV format..

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U.S. Geological Survey Energy and Minerals science strategy: A resource lifecycle approach

Explains the major questions and strategic actions to be carried out by the USGS to understand energy and mineral resources, their effects on the environment and on the economy and provide information to the public to support decision making.

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U.S. mineral dependence—Statistical compilation of U.S. and world mineral production, consumption, and trade, 1990–2010

The report provides insight into the dependence of the United States on foreign supply to meet the country’s mineral needs. This overview highlights the importance of understanding what is happening at each point along the supply chain.

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Update of the Mineral Resources Data System for California including Mineral Deposit Types

Improved information on deposit model (type) in records of this older USGS database describing sites that are located in California. Includes a list of additional deposit types needed to properly categorize the California locations. Data are provided in Microsoft Excel, CSV, and Esri personal geodatabase (Microsoft Access) formats.

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Uranium-Lead Ages, Hafnium Isotope Ratios, and Trace Element Concentrations by Laser-Ablation Split Stream (LASS) Analysis of Igneous Zircons from the Darby Mountains Area, Seward Peninsula, Alaska

Geochronological and geochemical data for rocks in this area. Data are provided in CSV format.

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Uranium-lead zircon ages and Sr, Nd, and Pb isotope geochemistry of selected plutonic rocks from western Idaho

U-Pb geochronology and isotopic studies of select plutons across the Salmon River suture in western Idaho.

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Users guide to Handlens--A computer program that calculates the chemistry of minerals in mixtures

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USGS Geochron: A Database of Geochronological and Thermochronological Dates and Data

Published ages, dates, analytical information, sample metadata including location, and source citations. The following analytical techniques are represented in the data set: 40Ar/39Ar, K-Ar, U-Th-Pb, Sm-Nd, Rb-Sr, Lu-Hf, fission track, and luminescence. Data are provided in CSV format.

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USGS mineral-resource assessment of Sagebrush Focal Areas in the western United States

U.S. Geological Survey (USGS) scientists have completed an assessment of the mineral-resource potential of nearly 10 million acres of Federal and adjacent lands in Idaho, Montana, Nevada, Oregon, Utah, and Wyoming. The assessment of these lands, identifie

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USMIN Mineral Deposit Database

A developing national-scale geospatial database that will be an authoritative source of information on the most important mines, mineral deposits, and mineral districts of the United States.

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USMIN Mineral Resource Data for the U.S. Geological Survey Sagebrush Mineral Resource Assessment Project

Locations of mineral occurrences, mines, mining and mineral districts and sites of active mineral exploration within or near the Department of the Interior (DOI) Sagebrush Focal Areas in Montana, Wyoming and Utah, central Idaho, and the Oregon-Nevada-Idaho border area. Data are provided in Esri file geodatabase and shapefile formats.

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Utah geologic map data

A GIS database of geologic units and structural features in Utah, with lithology, age, data structure, and format written and arranged just like the other states.

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Value of mineral production by state in the US

The value of mineral production by state in the United States. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey.

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Vanadium

Vanadium is used primarily in the production of steel alloys; as a catalyst for the chemical industry; in the making of ceramics, glasses, and pigments; and in vanadium redox-flow batteries (VRBs) for large-scale storage of electricity.

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Vermont geologic map data

A GIS database of geologic units and structural features in Vermont, with lithology, age, data structure, and format written and arranged just like the other states.

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Virginia geologic map data

A GIS database of geologic units and structural features in Virginia, with lithology, age, data structure, and format written and arranged just like the other states.

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Volcanogenic massive sulfide deposits of the world

Map interface and data download of VMS data including KML and GIS data formats

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Volcanogenic massive sulfide deposits of the world; database and grade and tonnage models

Information on VMS deposits from around the world with new grade and tonnage models for three subtypes of VMS deposits and data allowing locations of all deposits to be plotted using GIS.

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Washington geologic map data

A GIS database of geologic units and structural features in Washington, with lithology, age, data structure, and format written and arranged just like the other states.

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Weathering and transport of chromium and nickel from serpentinite in the Coast Range ophiolite to the Sacramento Valley, California, USA

Investigates Cr and Ni geochemistry providing insight into the mobility and bioaccessibility of these toxic trace elements throughout northern California and perhaps the origin of elevated dissolved Cr(VI) concentrations in the western Sacramento Valley

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West Virginia geologic map data

A GIS database of geologic units and structural features in West Virginia, with lithology, age, data structure, and format written and arranged just like the other states.

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Whole Rock Density, Magnetic Susceptibility, and Radiometric Measurements of a Rare Earth Element Terrane, Southeastern Mojave Desert.

Rock property measurements including density, magnetic susceptibility, and radiometric concentrations to understand structural and geophysical relationships associated with rare earth element mineral deposits. Data are provided in CSV format.

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Whole rock geochemical data from the eastern part of the Yukon-Tanana Upland region, Alaska, USA

Whole rock chemistry on 185 samples, mostly from Au prospects, with lesser samples from porphyry Cu prospects in this area. Data are provided in CSV and shapefile formats.

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Whole rock major, minor, and trace element geochemistry of the upper part of the Mount Emmons-Redwell porphyry molybdenum (Climax-type) deposit, Redwell Basin, Crested Butte, Colorado

Whole rock major, minor, and trace element geochemical data from outcrops, waste rock piles, and drill core from the upper part of this deposit, the associated base metal vein system, and the surrounding hydrothermally altered to unaltered country rock. Data are provided in CSV format.

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Whole-rock and sulfide-mineral geochemical data for samples from volcanogenic massive sulfide deposits of the Bonnifield district, east-central Alaska

The data consist of major- and trace-element whole-rock geochemical analyses and major- and trace-element analyses of sulfide minerals determined by electron microprobe and laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) techniques

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Whole-rock geochemical data for alkaline intrusive rocks in the Wet Mountains area of Custer and Fremont Counties, south-central Colorado, USA

Whole-rock major and trace element analyses of 51 samples of breccias, veins and thin dikes, and a variety of carbonatite, felsic, mafic, and ultramafic intrusions across the area to understand the mineralization of rare earth elements and thorium in this area. Data are provided in Microsoft Excel and CSV formats.

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Wisconsin geologic map data

A GIS database of geologic units and structural features in Wisconsin, with lithology, age, data structure, and format written and arranged just like the other states.

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World phosphate mines, deposits, and occurrences

Geologic and mineral resource information for 1635 deposits of phosphate worldwide

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Wyoming geologic map data

A GIS database of geologic units and structural features in Wyoming, with lithology, age, data structure, and format written and arranged just like the other states.

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X-ray diffraction data of sediment samples from Hastings, Nebraska

X-ray diffraction data on sediment core samples collected in this area to inform aquifer sediment composition, mineralogical composition of operationally defined size fractions, and geochemical modeling. Data are provided in CSV format.

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X-ray Fluorescence Geochemistry of Columbia River Basalt Group Rocks in the Western Columbia River Gorge

Major- and trace-element analyses were performed by X-ray fluorescence. Data are provide in CSV format.

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Zircon U-Pb age and trace element data for Cenozoic igneous rocks in the Tonopah area, Nevada

U-Pb ages and concentrations of selected trace elements were analyzed in zircon crystals from nine samples of Cenozoic igneous rocks collected in this area. Data are provided in CSV format.

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Zircon U-Pb data for Proterozoic rocks in southwestern Colorado and rocks from drill core from Wyoming, Montana, and Nebraska

U-Pb zircon data and geochronology for Proterozoic rocks in this area to better understand the tectonic evolution of the area. Samples are from drill cores, part of a larger characterization of the age and geochemical character of basement terranes in the United States. Data are provided in CSV format.

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Zircon U-Pb data for volcanic ash beds in the Barstow Formation, California probe data 2022

Geochronological analysis of zircons from these ash beds. Data are provided in CSV format.

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Zirconium and Hafnium

Zirconium and hafnium are corrosion-resistant metals that are widely used in the chemical and nuclear industries. Most zirconium is consumed in the form of the main ore mineral zircon or as zirconium oxide or other zirconium chemicals.

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