A comprehensive database of Alaskan mineral deposits compiled from the published literature and from unpublished reports and data from industry, the US Bureau of Land Management, and USGS.

A database of mines, prospects, and mineral occurrences in Alaska compiled from published and unpublished sources from industry, U.S. Bureau of Mines, USGS, and other government and private sources.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.

Gravity station data for several surveys of this area.

Data on gold deposits extracted from an existing publication (available only as an image) to enable analysis. The Ontario Geological Survey, Ministry of Northern Development and Mines, Ontario, Canada kindly granted permission to re-publish these data. These data are provided in CSV format.

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.

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

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.

Magnetic susceptibility measured for 700 samples of drill core from thirteen drill holes in the porphyry copper-molybdenum deposit of the Stinkingwater mining district in the Absaroka Mountains, Wyoming

Gridded data from helicopter study of shallow geologic structures

Maps showing aeromagnetic survey results, locations of gravity station data, and discussions of processing within the report

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.

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.

The USGS had an aerial survey flown over parts of Cameron, Hidalgo, and Willacy Counties in Texas. The aerial survey included measurements of the earth's magnetic field and of the radioactivity of the surface rocks and soils.

Measurements indicating abundance of radioactive elements in near-surface rocks. Grids and flight-line data from surveys flown 1976-1980.

This report presents the results of analyses and interpretation of aerial gamma-ray, Landsat TM, geologic, and digital elevation data of the Big Bend area in Texas.

Maps, grids, and flight-line databases of a detailed aerial survey and maps and grids of satellite data

New aeromagnetic point observation data with grids as well

Magnetic anomaly and radiometric data for this area, to understand the geological structure and processes controlling the presence and distribution of alkaline igneous rocks that may be enriched in rare earth elements. Data are provided in CSV, GeoTiff, and Geosoft XYZ (flight-line) formats, packaged using the compressed 7-zip format.

Aeroradiometric and aeromagnetic flight-line data from surveys flown at 400 feet with line spacing from 3 to 6 miles from 1974 through 1981.

Gridded and tabular magnetic data and gravity station observations. Maps depicting the data are included in the report.

Collection of historical gravity and aeromagnetic data in Afghanistan (1911 through 1967)

Gridded aeromagnetic and ground-based gravity station data

Aeromagnetic survey data giving the calculated magnetic anomaly. Data are provided in CSV format.

Aeromagnetic data help provide the underpinnings of a hydrogeologic framework for Fort Irwin by locating inferred structural features or grain that influence groundwater flow. Magnetization boundaries defined by horizontal-gradient analyses coincide lo

Digital files and descriptions of airborne and ground collected magnetic data in Afghanistan

Intended to promote further understanding of the geology and structure in the central California Coast Ranges, includes downloadable gridded point database.

Gridded survey data with summary map images.

Flight-line data, flight-line and aeromagnetic anomaly map images

Map and flight-line data, with documentation of the survey

Grid data files along with maps in PDF and PostScript accompany this report

Aeromagnetic flight-line measurements and gridded anomaly data

Gridded data from aeromagnetic surveys

Flight-line data from the aeromagnetic survey

A simplified geologic map, raw gravity and magnetic data, with derivative products including depth-to-source and rock densities, with limited interpretations of the underlying geology, structures, and mineral resources.

Study to estimate the 3-D distribution of permafrost, to evaluate the effectiveness of these methods at mapping permafrost geometry, and to better define the physical properties of the subsurface in discontinuous permafrost areas.

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.

Airborne electromagnetic and magnetic survey data were collected during 2016 along 300 line kilometers in this area, flown at a nominal flight height of 30 m above terrain along widely spaced reconnaissance lines. Includes raw and processed AEM data, laterally-constrained inverted resistivity depth sections along all flight lines, and unprocessed and processed magnetic data. Data are provided in CSV format.

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.

Airborne electromagnetic (AEM) and magnetic survey data, a total of 3065 line-kilometers, collected during October 2001 with line spacing 400m and nominal altitude of 30m. Includes raw and processed AEM data and magnetic data, in CSV format.

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.

Airborne electromagnetic (AEM) and magnetic survey data collected in 2015 along 769 line-kilometers including raw and processed AEM and magnetic data, processed AEM resistivity-depth inversions. Data are provided in CSV format.

Airborne electromagnetic and magnetic survey data were collected in 2014 in this area. The survey was flown at a nominal flight height of 30 m above terrain, line spacing of 200 m with a smaller area at 100 m. Includes raw and processed AEM data and spatially-constrained inverted resistivity depth sections, and unprocessed and processed magnetic data that has been drift corrected, leveled, and draped to terrain. Data are provided in CSV format.

Airborne electromagnetic and magnetic survey data in 2012 along 556 line-kilometers over this volcano flown at a nominal flight height of 30 meters (m) above terrain with a nominal spacing of 250 m. Data are provided in CSV and GeoTiff formats.

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

Data from a helicopter-borne electromagnetic and magnetic survey flown over this area area in 2000. Nominal elevation of the sensor was 60 meters. Survey coverage comprises 1,914 line kilometers. Data are provided in CSV format.

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.

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.

Gridded data used to revise base of aquifer, with supporting elevation data.

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.

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.

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.

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.

Compilation of airborne geophysical surveys (magnetic, radiometric, and electromagnetic) with links, for each survey to the data, metadata, and preview images. Includes a measure of quality indicating which surveys are likely most useful for investigations of subsurface mineral deposits. Data are provided in Esri file geodatabase, shapefile, and CSV formats.

Airborne surveys measuring the earth's magnetic field, resistivity or other electomagnetic properties, or gamma ray emission over parts of North America.

Three contractor reports and data files for an airborne electromagnetic survey describing data aquisition and processing. Processed geophysical data were inverted to produce resistivity depth sections along flight lines. Results are described herein.

Gravity, magnetic, and radiometric data obtained in airborne surveys conducted in 2012 with a flight line spacing of 200m and nominal height above ground 125m. Data are provided in GXF grid, GeoTiff, and CSV formats.

Airborne geophysical surveys were conducted in this area in 2015 with a nominal survey height above ground of 200 meters and flight line spacing 250 meters. Includes magnetic and radiometric (gamma spectrometry) data from those surveys. Data are provided in Geotiff and CSV formats.

Data release and processing description of airborne and ground gravity data collected over Afghanistan

Digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over this area. Data are provided in netCDF, GeoTiff, and CSV formats,

Digital flight-line aeromagnetic and aeroradiometric survey data over of the southeast Mojave Desert, parts of California and Nevada. Data files are provided in CSV as well as Geosoft binary database and grid exchange format (GXF).

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.

Digital flight line data for a high-resolution magnetic and radiometric survey over an area of northwest Arkansas. Data files in CSV format, with GeoTiff as well.

Digital flight line data for a high-resolution airborne magnetic and radiometric survey over Charleston, South Carolina and the surrounding region. Data packages in CSV format, TIFF images provided as well.

Digital flight line data for a high-resolution airborne magnetic and radiometric survey with goals of better understanding placer deposits containing critical mineral resources titanium, zirconium, and rare earth elements and of imaging the crystalline basement partly buried beneath Atlantic Coastal Plain sediments. Data are provided in CSV (magnetic) and netCDF (radiometric) formats as well as GeoTIFF images.

Digital flight line data for a high resolution magnetic and radiometric survey over this area. Data are provided in CSV format.

Digital flight line data for a high resolution horizontal magnetic gradient and radiometric survey over this area. Flight line spacing was 300 m, mean terrain clearance was 140 m. Includes flight line data for the magnetic gradient survey, flight line data for the radiometric survey and a report describing the survey parameters, field operations, quality control and data reduction procedures. Data are provided in CSV format, flight lines are provided in shapefile format.

Digital flight line data for a high-resolution airborne magnetic and radiometric survey over this area to better understanding volcanogenic massive sulfide mineral deposits, sediment hosted manganese deposits, and their surrounding geologic framework. Data are provided in CSV and GeoTiff formats.

Digital flight line data for a high-resolution airborne magnetic and radiometric survey of this area. A total of 40,139-line km of magnetic and radiometric data were acquired over an irregular-shaped area of 9140 sq km. Data are provided in CSV, GeoTIFF, and Geosoft formats.

Digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over an area of southeast Missouri and western Illinois. Data are provided in CSV and GeoTiff formats.

Digital flight line data for a high-resolution magnetic and radiometric survey over an area of southeast Illinois, western Kentucky, and southern Indiana. Data are provided in CSV and GeoTiff formats.

Digital flight line data for a high-resolution airborne magnetic and radiometric survey over this area. Data are provided in CSV and GeoTIFF formats.

High-resolution, high-sensitivity aeromagnetic data to assess the area for anomalies and magnetic features pertaining to the local geology. Flight lines were spaced 0.25 miles (400 meters) apart in an east-west alignment. Data are provided in CSV and GeoTIFF formats.

Digital flight line data from a high-resolution magnetic survey over this area. The survey was flown in 2008 by Aeroquest under contract to Kennecott Eagle Minerals Company using a fixed-wing aircraft with a magnetometer mounted in a tail stinger. The USGS has obtained this 66,074 line km subset of the survey dataset for public release. Data are provided in Geosoft database and CSV formats.

Airborne magnetic survey data collected from this area to better understand the lithology and structure of exposed and concealed Precambrian rocks in support of mineral resource investigations. Results are provided in Geosoft database, grid exchange format, GeoTiff, and CSV.

Airborne magnetic survey data collected from this area to understand Precambrian rocks concealed under Paleozoic sedimentary rocks in northeast Iowa. Data are provided in GXF grid and CSV formats. Flight lines are provided in shapefile format.

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.

Basic aeromagnetic data and other airborne survey information for any region of Alaska. Flight-line point information, not grids.

Geochemical analyses of rocks, mineral separates, bulk samples from lake and stream sediments, heavy mineral concentrates, and soils collected by USGS from 1962 to 2009.

Geochemical analysis of rock, sediment, soil, mineral, and heavy mineral concentrate samples in Alaska analyzed from 1938 through 2017. Includes best-value chemical element concentrations as well as mineralogical analysis. Data are provided in Microsoft Access and CSV formats.

The Alaska Geochemical Database Version 3.0 (AGDB3) contains new geochemical data compilations in which each geologic material sample has one “best value” determination for each analyzed species, greatly improving speed and efficiency of use. Like the

Geochemical analyses of rock, sediment, soil, mineral, and heavy mineral concentrate samples in Alaska analyzed from 1962 through 2009, with best-value estimates.

Geochemical analyses of rocks, mineral separates, bulk samples from lake and stream sediments, heavy mineral concentrates, and soils collected by USGS from 1962 to 2009.

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.

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.

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.

Grids and flight-line magnetic and conductivity data

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.

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.

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

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.

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

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

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.

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.

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.

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

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

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

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

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.

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

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

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

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

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

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

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

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.

Aeromagnetic surveys of Arkansas and Louisiana, merged to form seamless grids across the states. Gravity anomaly data are provided as well.

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.

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.

Estimates of potassium, equivalent uranium, and equivalent thorium for the conterminous United States derived from the USGS national airborne radiometric data compilation analyzed using a Bayesian hierarchical model to produce new grids for this area. Data are provided in CSV and GeoTIFF formats.

Analyses to establish the background and baseline geochemistry for bedrock and soil in the region, and to determine terrestrial mercury sources and sinks in the park

Gravity data collected in 2019 at 21 sites on and around Iliamna Volcano. Data are provided in CSV and GeoTiff formats.

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.

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.

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

Chemical analysis of 47,478 samples of various geological materials to facilitate geologic mapping, petrologic studies, mineral resource assessment, and similar regional environmental assessements.

Grids and map images for separate surveys and combined compilation

Whole major element geochemical data used to calculate values of the chemical alteration index (CIA), data for Nd, Sm, Y, and total REE and expected ranges for total REE for samples of regolith overlying the Stewartsville pluton, Virginia. Data are provided in CSV format.

Geochemistry of soils and other regoliths collected and analyzed by Hans Shacklette and colleagues from 1958 until about 1976.

Chemical analyses for 31 samples collected from various phosphate mine sites in southeastern Idaho (25), northern Utah (2), and western Wyoming (4)

Regional data for pH, alkalinity, and specific conductance for stream waters and a multi-element geochemical dataset for stream sediments collected in the New England.

Information related to amphibole and other minerals in order that commercial, regulatory, and other entities may obtain a better understanding of their impact on potential resource development. Data are provided in Microsoft Excel CSV, annotated PDF reports including microphotographs and analytical results, and JPEG formats.

Reprocessed existing gravity data compiled from multiple sources, as well as newly collected gravity and ground magnetic data, and bulk densities and magnetic susceptibilities from outcrop, hand samples, and drill cores. Data are provided in CSV format.

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.

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

Gravity measured from 1958-2005, with standard gravity reduction calculations applied to correct for latitude, elevation, topography, and isostasy.

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.

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).

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.

Statistical characteristics of the chemical concentration of cobalt in the soil C horizon of the conterminous United States. Data are provided in CSV, shapefile, and GeoTIFF formats.

Statistical characteristics of the chemical concentration of lanthanum in the soil C horizon of the conterminous United States. Data are provided in CSV, shapefile, and GeoTIFF formats.

Statistical characteristics of the chemical concentration of lithium in the soil C horizon of the conterminous United States. Data are provided in CSV, shapefile, and GeoTIFF formats.

Elemental concentration data for more than 1700 archived stream-sediment samples collected in Alaska.

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

Geochemical, petrographic, and geochronologic data for samples, principally those of unmineralized Tertiary volcanic rocks, from the Tonopah, Divide, and Goldfield mining districts of west-central Nevada.

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.

Analyses of core and surface samples collected in and around this mineral deposit. Samples were collected and analyzed between 1980 and 2000. Data are provided in Microsoft Excel and CSV formats.

Location and characteristics of significant deposits, so designated because they are few in number yet collectively represent almost the totality of domestic production and resources of these metals. Data are provided in Microsoft Excel, Esri file geodatabase, shapefile, and CSV formats.

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

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.

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.

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

Rock physical property measurements to help understand causative sources of gravity and magnetic survey anomalies in this area. Data are provided in CSV format.

A compilation and statistical analysis of 306 density and 706 magnetic susceptibility measurements of rocks from south-central Alaska

Flight-line data, grids, and images derived from them

Flight-line data, grids, and images derived from them

Grids and flight-line data for three airborne geophysical surveys

Digital and analog archives comprising more than 1,000 surveys, covering approximately 8,000,000 line-km of data, flown at various flight heights and line spacings

Digital data, image files, and text files describing data formats and survey procedures for aeromagnetic data collected during a high-resolution aeromagnetic survey in southern Colorado and northern New Mexico during October, 2004

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

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.

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.

Flight-line data and gravity grids with documentation.

Two high-resolution aeromagnetic surveys in south-central Colorado compiled to assess the subsurface geologic framework of the San Luis basin for ground-water flow model construction, and to map concealed faults potentially related to geothermal resources

Flight-line aeromagnetic observations with gridded data derived from them.

Aeromagnetic data collected during an airborne geophysical survey.

Digital data, image files, and text files describing data formats and survey procedures for an aeromagnetic survey covering the southwestern portion of Taos County west of the Town of Taos, New Mexico, conducted in October, 2006

Aeromagnetic anomaly values digitized from older surveys

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.

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.

Electron microprobe analyses of sphalerite and hemimorphite from sampled historical waste piles were conducted with a specific focus on germanium (Ge). Data are provided in CSV format.

Detailed mineralogical and geochemical study of ore minerals that can contain the critical mineral commodity germanium. Data are provided in CSV format.

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.

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.

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.

Elemental concentrations for bulk and size-fractionated mine waste from sampled historical waste piles from this area. Data are provided in CSV format.

Stable hydrogen, oxygen, and sulfur isotope data were collected from surface water, groundwater, and bulk mill tailings samples at this mine in South Strafford, Vermont. Where available, supporting data for water samples include discharge, pH, specific conductance, and dissolved sulfate concentration. The water samples span a time period from August 1998 to October 2009. Data are provided in CSV format.

Environmental tracer data from surface water and groundwater samples to date groundwater and define groundwater flow paths and recharge sources in Redwell Basin. Data are provided in CSV and shapefile formats.

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.

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

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.

Data from seismic reflection and refraction, electromagnetic sounding, and resistivity profiling in a study area in Indiana. Exact location is not provided.

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.

Helium, neon, and argon isotopic compositions contained in fluid inclusions in 25 samples from these mineral deposits. Four mineral separates from the Butte Main Stage vein deposit and two from the Bingham pyrite-enargite vein deposits were also analyzed. Includes some hand samples from underground mine workings and some from mine tailings piles and pits. Data are provided in CSV format.

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.

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.

Major and trace element analytical results of samples of bauxite (aluminum ore) and associated rocks.

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.

Results of analysis in tabular form

Major and trace element chemistry of rock samples collected in this area, where surrounding rocks host numerous mineral deposits and occurrences. Data are provided in Microsoft Excel and CSV formats.

Geochemical analyses of rock samples collected by the U.S. Geological Survey from surface exposures of host rock and REE-mineralized pegmatites and felsic dikes in this area to provide information on potential sources of co-product and by-product critical elements in domestic mineral deposits and to allow comparison with other REE deposits in peralkaline igneous complexes. Data are provided in CSV format.

Geochemical analyses of rock samples collected by the U.S. Geological Survey from surface exposures of host rock and REE-mineralized pegmatites and felsic dikes in this area. Data are provided in Microsoft Excel and CSV formats.

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.

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.

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.

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

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

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.

An environmental impact study is done for the abandoned Ely copper mine. The extent of contamination is studyed along with the type and chemical composition of the mine waste piles.

Geochemical analyses of bedrock, soil, streambed sediment, and surface-water samples were collected and analyzed in three watersheds that cross the basal part of the Duluth Complex, northeastern Minnesota to document regional water quality in areas of potential base-metal mining, Data are provided in Microsoft Excel and CSV formats.

Information about iron and steel slag samples in this area, including bulk chemistry, acid-base accounting, particle size analysis, synthetic precipitation leaching protocol results, and batch and column phosphate removal experiments. Data are provided in CSV format.

New major and trace element geochemical analyses of alkaline igneous rocks in this area. of historic gold mining in order to characterize the tellurium and other trace element constituents of predominantly unaltered rocks genetically associated with mineralization, to help understand the mechanism of enrichment in these deposits. 75 samples were analyzed by a variety of modern techniques and instruments.

Whole-rock major, minor, and trace element geochemical data for carbonatite samples from this deposit. Samples include a suite of outcrop samples and a suite of composite samples. Data are provided in CSV format.

Chemical analysis of surface samples taken over a well known but concealed deposit to understand metal migration into the surface materials and to assess the power of surface sampling for detecting concealed deposits of this type.

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

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.

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.

Includes all geochemical data generated by each project partnership funded through Earth MRI and will be updated periodically as additional geochemical data from these projects becomes available.

Previously unpublished geochemical data from 1966-1984 projects to describe the geology, determine petrologic and geochemical characteristics and to evaluate the mineral resource potential of the primitive areas and of adjacent study areas. Data are provided in Microsoft Access, shapefile, and CSV formats.

High-spatial resolution geochemical analyses of Mesoproterozoic apatite crystals in igneous rocks from this area to elucidate the petrogenetic histories of the samples and help evaluate ore deposit models. Data are provided in CSV format.

Chemical analyses for 46,955 samples collected in the Great Basin Tungsten assessment area, extracted from the USGS National Geochemical Database. Data are provided in Microsoft Access, Microsoft Excel, and tab-delimited text formats.

Geochemical analysis of samples from IOCG-REE type deposits in this area to facilitate petrologic studies, mineral resource assessments, and the definition and statistics of geochemical baseline values. Data are provided in Microsoft Access, Microsoft Excel, and tab-delimited text formats.

Sample description, location, and geochemical analysis of Mesoproterozoic igneous rocks and iron oxide-apatite-rare earth element and iron oxide-copper-cobalt-gold deposits in this area. Data are provided in Microsoft Access and tab-delimited text formats.

Geochemical data from the re-analysis of 44 rock samples collected between 1966 and 1970, and 107 sediment samples collected in 1966 and 1967 for a study investigating the mineral resources of this area. Data are provided in CSV format.

Geochemical reanalysis of 23 rock and 85 sediment samples collected between 1966 and 1970 by USGS to characterize the regional impact of legacy mining in this area. Data are provided in CSV format.

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

Stream water, groundwater, and ferricrete samples were collected and analyzed to constrain the location of a possible concealed mineral occurrence. Data are provided in CSV and shapefile formats.

A geochemical database for a regional subset of IOA ore and mine waste products, created because the apatite in these mineral deposits may also host rare earth elements. Data are provided in CSV format.

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.

Geochemical data for unconsolidated sediments (stream sediments, lake sediments, etc.) collected in the US and analyzed by the USGS. These data were originally entered in the PLUTO database, which is now merged into the National Geochemistry Database.

Geochemical data for soils collected in the United States and analyzed by the USGS. The data were originally entered into the in-house PLUTO database. This is a subset of DDS-47.

Geochemical data for soils collected by USGS personnel and analyzed by the USGS. These data were originally entered into the Rock Analysis Storage System (RASS), a database that is now merged into the National Geochemistry Database.

National-scale geochemical analysis of stream sediments and soils in the US collected and analyzed under the National Uranium Resource Evaluation program.

Geochemical data for unconsolidated sediments (stream sediments, lake sediments, etc.) collected by USGS personnel and analyzed by USGS. These data were part of the Rock Analysis Storage System and are now merged into the National Geochemistry Database.

National-scale geochemical analysis of water samples in the US collected and analyzed under the National Uranium Resource Evaluation program.

Whole rock geochemical analysis and, for zircons, isotopic composition to assess the genesis of igneous rocks that host the Mountain Pass rare earth element deposit. Data are provided in CSV format.

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.

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

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.

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

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.

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.

Includes data on mineral deposit locations and geochemical analyses

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

This large producer of mercury operated from 1933 to 1971. As part of remediation work, this survey used electromagnetic methods to study subsurface resistivity.

Detailed bathymetry, lake-floor acoustic imaging, and sample characteristics to infer bottom sediment characteristics.

Aeromagnetic surveys of Georgia, merged to form seamless grids across the state. Gravity anomaly data are provided as well.

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.

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

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.

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.

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.

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. Version 2.0 of this dataset. Data are provided in CSV, Esri file geodatabase, shapefile, and Microsoft Excel formats.

Broad areas within the United States to target acquisition of geologic mapping, geophysical data, geochemical analysis, or detailed topographic information to aid research, mineral exploration, and evaluation of critical mineral potential in these areas.

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..

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

Geochemical data for stratigraphic rock sequences containing dominantly fine-grained clastic rocks with appreciable organic carbon (above 0.5 weight percent), usually known as 'black shale facies examples' but including all fine-grained clastic rocks such as argillite, mudstone, claystone, and their low-medium grade metamorphic equivalents. Data are provide in Microsoft Access and tab-delimited text formats.

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.

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.

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.

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.

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.

Phytostabilization reduces the mobility of inorganic contaminants by establishing or enhancing plant growth. For small, remote, or abandoned mines, phytostabilization may reduce potential environmental hazards, provided plants can establish and grow. We grew a widespread perennial grass in mining wastes with and without soil and microbial amendments to determine whether we could improve plant establishment and growth. Data are provided in CSV format.

Field measurements: 548 gravity and 6484 magnetic anomaly locations, data in fixed-format text files.

Gravity station and rock physical property data used to infer geologic structure of the area

Gravity, density, and magnetic susceptibility (for hand samples) measured in this area. Data are provided in CSV format.

Gravity station data, isostatic anomaly map, and depth to basement map derived from geophysical inverse modeling.

Data from 261 measurements of gravity measured in this area to compliment newly collected airborne magnetic data for surface and subsurface geologic mapping and to aid the subsurface interpretation of mapped and concealed Ediacaran-Ordovician alkaline intrusions related to rare earth element (REE) mineralization. Data are provided in CSV format.

Gravity anomaly with physical property measurements in support of structural geologic investigation

Data on the southern portion of the Marine Corps Air Ground Combat Center (MCAGCC) Twentynine Palms and the Yucca Valley-Joshua Tree-Twentynine Palms area and presents the map and basin analyses.

Gravity observations throughout Nevada combined to provide a consistent collection of point measurements and generate maps.

Gravity measurements and surveyed topography data

Provides a view of alluvial basins, shapes, areal extents, and approximate thicknesses of alluvial fill. Gravity field is separated into density variations in the basement complex and distribution of Cenozoic fill with its 3-D thickness representation.

Aerial, truck-towed, and hand-held magnetometer measurements, gravity station data, and sample density and magnetic susceptibility measures

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.

Electromagnetic, resistivity, and magnetic surveys used to determine the extent of contamination in an abandoned mine area.

Results of a detailed ground magnetic survey

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.

Radiometric (gamma spectrometry) measurements made during walking surveys in this area. Data were collected over and in the vicinity of a radiometric thorium anomaly identified via an airborne survey. Data are provided in CSV format.

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

Flight line data, grids, and inversions for these surveys are intended to help understand shallow groundwater and develop groundwater resource plans for the aquifer.

Electrical resistivity depicted in georeferenced grids and maps, representing different approximate depths of investigation for each area. The range of subsurface investigation is comparable to the depth of shallow aquifers.

Geophysical surveys to map shallow hydrogeologic features of the southwestern part of the Sand Hills that contain a mix of fresh to saline lakes.

The objective of the contracted survey was to improve the understanding of the relation between surface water and groundwater systems critical to developing groundwater models used in management programs for water resources.

Airborne geophysical data and a summary of the hydrologic application.

High resolution magnetic and gravity gradient data were collected in this area centered on the Pea Ridge iron oxide-apatite rare-earth element deposit. Flight lines spacing was 400 m, nominal flight height above terrain was 80 m. Includes flight line data for the gravity gradiometry survey and a report describing the survey parameters, field operations, quality control and data reduction procedures. Data are provided in CSV format.

Data from a helicopter magnetic survey in this area to understand the nature of aquifers, the potential for geothermal energy resources, the likelihood of seismic hazards, and the geology of the northern Rio Grande rift. Data are provided in GXF grid and CSV formats.

Flight-line and gridded data, with description of methodology and interpretation

Detailed airborne gravity gradiometry, magnetic, and radiometric survey data for this area flown with flight-line spacing of 100 and 200 m, nominal flight-line elevation above ground of 70 m, for about 1,814 line-kilometers. Data are provided in CSV and Geosoft database (.gdb) format. Gravity and hillshade are in GXF grids.

Geochemical analysis of mine dumps, mill tailings, mine drainage, and surface waters indicate contamination from these historic mines is generally less than that asserted or suggested by some geochemical models

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.

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.

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.

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.

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.

Total element concentration and simulated lung and gastric fluid bioaccessibility from previously collected Uranium mineral deposit samples (1971 and 1981, Southwestern U.S.) exploring possible exposures to other hazardous trace metals. Data are provided in CSV format.

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.

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.

Includes principal facts (gravity observations) for 2,506 stations.

Gravity measurements to support regional mapping and hydrologic studies

Includes 802 gravity station measurements with isostatic, free-air, simple and complete Bouguer anomalies, and terrain correction.

Includes detailed point measurements of gravity

Sulfur and carbon isotope compositions, concentrations of selected elements, and concentrations of pyrite sulfur and organic carbon in mudstone samples collected from five cores drilled in this area. Data are provided in CSV format.

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.

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.

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.

Data from a detailed analysis of a formal procedure that is used to extract Cr(VI) from solids containing chromium ore processing residue, Careful modification of the procedure was intended to improve its efficiency with which it extracts this chemical species from the materials under study. Data are provided in CSV format.

Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) analyses of apatite provide trace element concentrations that support indicator mineral studies in this deposit. Data are provided in CSV format.

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.

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.

Geochemical analysis, photographs and micrographs of rock samples and drill core materials from this area. Data are provided in CSV, images in JPEG format.

Chemical analysis of 201 samples of rocks thought to be altered or mineralized in an area containing numerous mines.

Whole rock geochemical analysis of sulfide- and chromite-bearing samples in this area, with specific interest in PGE, cobalt, and gold concentrations. Data are provided in CSV format.

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.

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

Database includes new helicopter aeromagnetic data, point locations of the local maximum horizontal gradient derived from the aeromagnetic data, and physical property data.

In-place rock magnetic susceptibility measurements for 746 sites are reported in a database. These data, collected from 1991 through 2012, are intended to help improve geophysical modeling of the Earth’s crust in the Western United States.

Magnetic susceptibility measurements on rock outcrops to help understand magnetic survey anomalies in this area. A total of 1,400 measurements of magnetic susceptibility from 87 locations have been conducted on Paleogene volcanic and plutonic rocks that have been hydrothermally altered. Data are provided in CSV format.

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.

138 rock geochemistry samples collected during the 2006 field season were analyzed using the ICP-AES/MS42, ICP-AES10, fire assay, and cold vapor atomic absorption methods

Uranium and lead isotope ratios from (1) scheelite from ore deposits near Mallnock, Austria, (2) wolframite from the Wolfram Camp mine, Australia, and (3) scheelite from the Andrew Curtis mine near Los Angeles, California. Data are provided in CSV format.

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.

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.

Geochemical analyses of silicate melt inclusions, host quartz phenocrysts, and biotite phenocrysts in samples of these rocks. Data are provided in CSV format.

Total mercury and methylmercury measured in sediments, tailings, and water in an area where historical gold mining has occurred; proposed habitat restoration work may release some of the mercury that is currently buried there.

Point locations with characteristics of mines and prospects.

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.

Best available public-domain aeromagnetic and gravity data in the State of Michigan merged into composite grids. Magnetic data compiled from 25 separate magnetic surveys.

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

Information about exploration sites relating to the mineral industries of these areas. Includes the mineral commodities present at the site, project name, project type, operator, owners of the site, geographic coordinates, and locational accuracy. Data provided in CSV format.

Database of mines and mineral plants through 2003

Database of mines and mineral plants through 2005

Facilities including mines, mineral processing plants, refineries, and smelters, oil and gas field locations, and petroleum refineries. Includes specific forms of the mineral commodity produced, location information, facility name, operator, ownership of the facility, annual production capacity, operational status, as well as geographic coordinates and locational accuracy. Data provided in CSV format.

Mineral facilities and operations outside the United States compiled by the National Minerals Information Center of the USGS.

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.

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

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.

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.

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

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.

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.

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.

Mathematical modeling, coupled with new observations of magnetic susceptibility, yield better estimates of the underground configuration of granite plutons.

Oxidation state and bonding environment of Ge in minerals within mine waste from sampled historical waste piles from this area. Data are provided in CSV format.

Data from a combination of analytical techniques providing detailed mineralogical and chemical analysis, to understand the mechanisms controlling geologic enrichment in germanium in ores that are crucial for maintaining a sustainable supply of this critical mineral commodity. Data are provided in CSV format.

Aeromagnetic surveys of Montana, merged to form seamless grids across the state. Gravity anomaly data are provided as well.

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.

Flight line data for an airborne magnetic survey with nominal sensor height of 60m above terrain, flight-line data for a gravity gradiometry survey, with a report containing instrument and procedure details. Data are provided in CSV format.

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.

Geochemical data generated during mineral and environmental assessments for the Bureau of Land Management in northern Nevada, northeastern California, southeastern Oregon, and southwestern Idaho.

Chemistry and geologic information for nearly 30,000 historic ore and ore-related rock samples from mineral deposits and mining districts in the United States. Data are provided in Microsoft Access and CSV formats.

Geochemistry of concentrates from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are from the continental US and Alaska.

Geochemical analysis of rock samples collected and analyzed by the USGS. This dataset includes and supersedes rock data formerly released as "Geochemistry of igneous rocks in the US extracted from the PLUTO database"

Geochemical analysis of sediment samples from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are of stream sediment in the continental US and Alaska.

Geochemical analysis of soil samples from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are from the continental US and Alaska.

National-scale geochemical analysis of stream sediments and soils in the US, from existing data, reanalysis of existing samples, and new sampling. Goal for sample density is one per 289 square km.

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.

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.

Gridded geophysical data in a variety of formats.

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.

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.

Aeromagnetic surveys of New England, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats.

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.

Aeromagnetic surveys of New Jersey, merged to form seamless grids across the state. Gravity anomaly data are provided as well.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Flight line data from airborne surveys conducted in 2017, provided in comma-separated values (csv format). Three areas were flown along a draped surface with a nominal survey height above ground of 120 meters. The flight line spacing for these areas was 200 to 400 m for Area 123, in southwestern Oklahoma; 1000 m for Area 4, in northwestern Oklahoma, and 800 m for Area 5, in north-central Oklahoma.

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.

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.

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.

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.

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.

Density and magnetic susceptibility measurements made on rocks and outcrops in this area. Data are provided in CSV format.

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

Rock density and magnetic susceptibility measurements of samples drawn from this area. Data are provided in CSV format.

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.

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.

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.

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.

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

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

Geochemical analyses of rock, mine waste, sediment, and soil samples collected from this area. Data are provided in CSV format.

Geochemical analyses of rock, mine waste, soil, sediment, and water samples collected from this area. Data are provided in CSV format..

Geochemical analyses of rock, mine waste, sediment, soil, and water samples collected from this area. Data are provided in CSV format.

This map is intended to promote further understanding of the geology and structure in the region by serving as a basis for geophysical interpretations and by supporting geological mapping, water-resource investigations, and various topical studies.

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

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.

Report with excel tables showing principal facts (gravity observation data) and ground magnetic data.

Provides data for the depth below the land surface,in meters, of the modeled location of the Pre-Tertiary basement surface.

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

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

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

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

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

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

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

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.

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

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.

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

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.

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

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

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

Map with excel tables showing principal facts (gravity observation data).

Includes 2,604 (170 not previously published) gravity station measurements with calculations of free-air, simple Bouguer, complete Bouguer, and isostatic anomaly.

The purpose of the data collection was to investigate possible changes in gravity across mapped Quaternary faults and to improve regional gravity coverage, adding to the existing national gravity database.

Data collected as part of a geological and geophysical framework study

Data and associated physical property measurements were collected as part of on-going studies to help determine the earthquake hazard potential of major faults within the San Francisco Bay region

Gravity anomaly measurements throughout the state

New data incorporated with existing data complete overall coverage of the basin, one of the largest associated with the Rio Grande rift.

Gravity anomaly surveys of Wisconsin, both separately by survey and combined.

Gravity data were collected in support of geologic mapping of the quadrangle. In addition, older gravity data were reprocessed for consistency and included, as well as 250 measurements of density and magnetic susceptibility.

Gravity measurements used for determining geologic structure to aid in understanding ground-water flow

Gravity measurements collected to help define the characteristics of the Rialto-Colton fault, with rock properties such as lithology, magnetic susceptibility and density.

Gravity data were collected in 2016 and 2017 to assist in mapping subsurface geology in this area, where there are numerous iron-oxide apatite deposits which contain rare-earth elements. Data are provided in CSV format.

Gravity measurements were collected during 2013, 2014, 2020 at 168 sites on and around the Stillwater layered mafic complex. Data are provided in CSV and shapefile formats.

Gravity data were collected from 2006 through 2015 to assist in mapping subsurface geology in this area. Includes principal facts for 567 new gravity stations that were acquired to fill in gaps in previously-available gravity data. Data are provided in CSV format.

Gravity data collected 2016 through 2018 at 1080 locations to assist in mapping subsurface geology in northeastern Iowa. Data are provided in CSV format.

Gravity data collected from 2016 through 2019 to assist in mapping surface and subsurface geology in this area. Data are provided in CSV and shapefile formats.

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.

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.

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.

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

Reanalysis of existing samples provides more precise and accurate geochemical data because newer methods can be used. Stable isotopes of lead were also included. Data are provided in Microsoft Access, CSV, and shapefile formats.

New analysis of existing samples from this area, to improve precision and accuracy and consistency of the measurements with those made on newly-collected samples. Data are provided in Microsoft Access, Microsoft Excel, CSV, and shapefile formats.

Reanalysis, using modern methods, of nearly 60,000 NURE-HSSR archived samples collected over parts of Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah.

Geochemical analysis and characteristics of bauxite deposits in this area.

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.

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.

A study to investigate subsurface geologic conditions as they relate to ground-water flow in an abandoned landfill.

Study aids understanding of local geologic structure and ground-water flow, includes principal facts for 266 gravity stations and physical properties of representative rock samples.

Redigitized and corrected data from a previously published study

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.

DC resistivity soundings were made to map subsurface lithologic, structural and hydrologic features important in controlling possible ground water contamination from mining activities and for design of remediation efforts.

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

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

Location and characteristics of 123 sediment-hosted gold deposits worldwide.

Location and characteristics of 123 sediment-hosted gold deposits worldwide. These deposits have disseminated micron-sized invisible gold in sedimentary rocks.

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

This report provides information on sediment-hosted zinc-lead mineral deposits based on the geologic settings that are observed on regional geologic maps.

Data on a variety of mineral deposit types that have variable environmental effects when exposed at the ground surface by mining or natural processes.

Grid and flight-line data files provided by the geophysical survey contractors.

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.

Results of Monte Carlo simulations of amounts of copper in undiscovered porphyry copper deposits in 163 permissive tracts aggregated by world region. Data are provided in CSV format.

Grid and flight-line data files provided to USGS by contract geophysical surveyors

Gridded data for aeromagnetic surveys with contractors' reports describing the data collection

Geochemical analyses of solid mill tailings and other ore processing materials from worldwide localities, and leachates from those samples. Data are provided in CSV format.

Aeromagnetic surveys of South Carolina, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats.

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.

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.

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.

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.

Digital geologic maps of the US states with consistent lithology, age, GIS database structure, and format

Scanned drill core logs and explanatory material provided in PDF format. Hand-written notes provided in CSV format. Locations provided in shapefile format.

Scanned drill core logs and explanatory material provided in PDF format. Hand-written notes provided in CSV format. Locations provided in shapefile format.

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.

Images of graphic drill core logs showing associated drill core information, an image of the explanation for the lithology and structure sections of the logs, the locations of the drill holes, and tabular data compiled from handwritten drill core logs. Data are provided in TIFF and CSV formats.

Historical context of minerals exploration in this area including the locations of drill cores and lithologic, structural, grain size, and chromite, sulfide, copper, and nickel mineralization. Data are provided in TIFF images, with originally hand written information provided in CSV format, and location information as shapefiles.

Analysis of stream sediments to assess the geochemistry, in particular the mercury and selenium contents, of mining-impacted sediments in the study area

New analyses of 1,075 previously collected stream sediment samples, measuring more elements with better precision. Includes arsenic, gold, palladium, and platinum and 55 major, rare earth, and trace element concentrations.

Strontium isotopic data from water and rock samples collected in this area. Data are provided in CSV format.

This data release consists of point data digitized from structural geologic orientation symbols consisting of mostly foliations and lineations from twenty-three geologic maps published between 1964 and 2009, primarily 7.5-minute, 1:24,000 scale quadrangles. Data are provided in Esri file geodatabase, shapefile, CSV, and Microsoft Excel formats.

Sulfur isotope determinations (34S/32S ratios) for sulfur-bearing minerals collected from epithermal veins in this area and from metasedimentary rocks that host the Black Angel zinc-lead-silver deposit. Samples were collected by cooperators as parts of larger ore genesis studies. Data are provided in CSV format.

Sulfur isotope analyses of chalcopyrite from a base metal deposit in this area. Rock samples were collected from outcrops, and chalcopyrite was separated for analysis by hand picking. The data are provided in CSV format.

Grids representing the copper-nickel-platinum group element mineralized zone found in these intrusions. Includes elevation of the bottom and top of the zone, and measures of the thickness of the zone. Data are provided in Esri Grid and CSV formats.

Electron microprobe analyses of two samples of cassiterite from this mineral deposit. Data are provided in CSV format.

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.

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.

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.

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.

Data generated by aerial sensing of radiation emanating from the earth's surface provides general estimates of the geographic distribution of Uranium, Thorium, and Potassium in surficial and bedrock units. Covers the conterminous United States, southeaste

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.

Aeromagnetic surveys of Texas, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats.

Geophysical modeling used to study mineral deposit geometry. Includes 227 new gravity stations.

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.

Interpretation of aeromagnetic data, with geologic structure, to infer thickness and estimate capacity of an aquifer.

Grids and flight-line data for the surveys of this area

Data sets include drill-hole from core and geophysical logs, surface geology and elevation, and helicopter electromagnetic survey data. The model may be explored and .jpg or .tiff images or using specialized software provided.

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.

Describes electromagnetic sounding locations, data acquisition, calibration, and modeling; compares data to borehole data, correlating model results; and summarizes the applications and limitations of the TEM method. Examples of models are provided.

Titanium concentrations of 3,457 stream sediments extracted from the previously published National Geochemical Survey dataset. Data are provided in shapefile and CSV formats.

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.

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.

Mineral resource assessment information including the input data, parameters, and results output from software that calculates the assessment. Data are provided in CSV format.

<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

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.

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.

Isotopic data and ages for selected igneous bedrock samples collected in 2001 through 2003 from this area. Data are provided in CSV format.

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.

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.

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.

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.

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.

Laser ablation ICPMS U-Pb detrital zircon geochronology data to supports mapping and stratigraphic interpretations of this area. Data are provided in CSV format.

Geochronological data to understand the history of these rock formations. Data are provided in CSV format.

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.

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.

Geochronological data for sedimentary and metasedimentary rocks in this area. Data are provided in CSV format.

Geochronology data obtained through radiometric dating of rocks in this area. Data are provided in CSV format.

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.

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.

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.

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.

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.

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.

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.

Radiometric ages determined from analysis of zircon crystals in this area where mineral deposits are found. Data are provided in CSV format.

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.

Radiometric age and supporting measurements for these rocks to understand their geologic history. Data are provided in CSV format.

Statistics for over 88 nonfuel mineral commodities including items such as production, imports, exports, price, stocks, apparent consumption, and/or net import reliance for nonfuel mineral commodities. Data are provided in CSV format.

U.S.salient statistics and world production statistics for over 88 nonfuel mineral commodities. Salient statistics for the United States includes items such as production, imports, exports, price, stocks, apparent consumption, and/or net import reliance for nonfuel mineral commodities. Data are provide in CSV format.

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.

Geochronological and geochemical data for rocks in this area. Data are provided in CSV format.

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.

Spectra measured with laboratory, field, and airborne spectrometers. The instruments used cover wavelengths from the ultraviolet to the far infrared (0.2 to 200 microns). Laboratory samples of specific minerals, plants, chemical compounds, and man-made materials were measured. In many cases, samples were purified, so that unique spectral features of a material can be related to its chemical structure. Data are provided in text format as well as the SPECtrum Processing Routines (SPECPR) format.

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.

Aeromagnetic surveys of Utah, merged to form seamless grids across the state. Gravity anomaly data are provided as well.

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.

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.

Aeromagnetic surveys of Virginia, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats.

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.

Laboratory reflectance and emissivity spectral measurements of dune sand samples collected from a variety of dune types and mineralogical compositions from eight dune field locations in Alaska, Arizona, California, Colorado, Idaho, Nevada and New Mexico. Data are provided in CSV format.

Map interface and data download of VMS data including KML and GIS data formats

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.

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.

Water characteristics (measured in situ) and laboratory geochemical analysis of water and sediment in this area to quantify the increase in dissolved constituents in streams attributable to historical mining activity. Data are provided in CSV format.

Data collected to determine geologic background concentrations of trace metals in water and stream sediment, and to quantify the increase in dissolved constituents in streams attributable to historical mining activity in this area. Data are provided in CSV format.

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.

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.

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.

Whole rock major and trace element data for 399 igneous and sedimentary rock samples collected from this area. Data are provided in CSV format.

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.

Geochemical, x-ray diffraction mineralogical, and electron probe microanalysis (EPMA) data on rocks, soils, and sediments collected near porphyry copper deposits in this area. Data are provided in CSV format.

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

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.

Geochemical analysis of 74 samples for major-element oxides (SiO2, Al2O3, Fe Total, MgO, CaO, Na2O, K2O, TiO2, P2O5, and MnO) by X-ray fluorescence (XRF) conducted in the 1980s. Data are provided in Microsoft Excel, CSV, and DBF formats.

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.

Locations and characteristics of the copper smelters throughout the world as of 2002.

Geologic and mineral resource information for 1635 deposits of phosphate worldwide

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.

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.

Mineralogical and geochemical analysis of samples of this industrial waste material to help understand effects on human health of exposure to these materials. Data are provided in CSV format.

Major- and trace-element analyses were performed by X-ray fluorescence. Data are provide in CSV format.

Relational database describing 102 materials from the early 1800s to circa 2017 through anthropogenic cycles, their recycling and criticality properties, and on spatial scales ranging from suburbs to global. Provided as MySQL, PostgreSQL, and CSV formats.

Geochemical analyses of zircons in this area. Data are provided in CSV format.

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.

Geochronological analysis of zircons from these ash beds. Data are provided in CSV format.