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

Hydrothermal orebodies and their host rocks are characterized by compositional variations in magnetite. Minor and trace element data for hydrothermal and igneous magnetite are compared with an unmineralized magnetite-series granodiorite in southwest Japan

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

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.

This report releases data, cross section, and model information related to the identification of travel paths for groundwater supply and principal stratigraphic and structural features that serve as constraints or conduits for groundwater movement.

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

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.

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

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

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

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

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

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

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

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

Overview explaining how and why six different geochemical data sets were produced, and why you might choose to use the data in any one of these instead of the others.

A set of geophysical maps with anomalies that are labeled and keyed to tables containing information on each anomaly and its source.

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.

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

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

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

Aeromagnetic anomaly values digitized from older surveys

Principal basement structures formed during the Precambrian in the continental United States based on interpretation of regional aeromagnetic anomaly data of North America.

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

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.

Map includes GIS data for magnesium-rich ultramafic rocks

The long-wavelength (50-2,500 km) content of the regional magnetic anomaly compilation was improved by utilizing a nearly homogeneous a nearly homogeneous set of NURE magnetic surveys flown from 1975 to 1981

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

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

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.

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.

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.

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.

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"

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.

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.

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.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Measurements of the gravitational field vary slightly from place to place due to the composition and structure of Earth's crust. Includes the isostatic and Bouguer anomalies for the conterminous US.

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

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.

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.

Mineral groups identified through automated analysis of remote sensing data acquired by the ASTER system were used to map the type and spatial distribution of hydrothermal alteration, other exposed mineral groups, and green vegetation.

Maps of exposed surface mineral groups derived from automated spectral analysis of Landsat 7 ETM+ and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data.

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

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

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

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

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.

Geographic areas within the US where deposits of certain critical mineral resources might be found. With state agencies and other organizations, USGS intends to conduct studies that will help locate critical mineral resources within these areas.

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.

Geologic and physiographic description of major rock salt deposits in the US, compiled from the perspective of the potential use of these deposits for storage of radioactive waste.

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.

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

Descriptions and analytical data (electron microprobe, X-ray diffraction, spectral reflectance, and scanning electron microprobe analyses) for unexpanded and expanded vermiculite samples, a mineral product with commercial applications. Data are provided in CSV format. Descriptions of the samples are provided as PDF reports.

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.

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

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.

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.

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.

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

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.

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..

Data on materials are presented provide an overview of the annual quantities (measured in physical terms) required for the standard of living in the United States and to provide insights into the consumption trajectory that developing countries may follow.

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.

Mineral deposit information drawn from USGS databases, industry reports, and scientific literature totalling 681 individual mineral deposits documented to contain critical minerals. Data are provided in Esri file geodatabase, Microsoft Excel, shapefile, and CSV formats.

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

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

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

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

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

Geologic map GIS which represents the original content of the published geologic map and which can be queried in many ways to produce a variety of geologic maps and derivative products.

Measurements of in-situ magnetic properties of several map units to determined whether or not mapped lithologies were responsible for aeromagnetic anomalies observed in a previous high-resolution survey (data of Sweeney, 2000).

Geologic map information in GIS formats

Grids and flight-line magnetic and conductivity data

321 observed gravity values with free-air, simple Bouguer, and complete Bouguer anomaly values; high-precision relative-gravity surveys repeated over time, useful for aquifer-storage-change monitoring; and absolute gravity values for use as base stations.

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.

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.

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.

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.

Chemical analysis of geological materials at this EPA Superfund site located on lands of the Hopi and Navajo nations, which may contain mine waste.

Regional samples of rock, sediment, leachates, and water were collected in and around the TCL site and analyzed for major and minor elements and radionuclides

Study of sources and resulting transport of radionuclides and other dissolved constituents in the surrounding ground water.

Geochemical analysis of 47 elements in more than 700 soil samples that appeared to be unaffected by mineralization or anthropogenic contamination.

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.

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.

Data to determine the distribution of uranium deposits, breccia pipes, and collapse features and define areas permissible for uranium-bearing breccia pipes in northern Arizona and southeast Utah. Data are provided in shapefile format.

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.

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.

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.

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.

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.

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

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.

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

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

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.

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.

Nearly 10,000 measurements of gravity governed by consistent parameters and adjustments to account for all of the common physical phenomena that affect these measurements. Data are provided in CSV and shapefile formats.

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

Gravity station data and hand-held magnetometer measurements with analysis and description of methodology

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

Spatial databases for map units, strike and dip, geologic contacts, faults, dikes, in addition to a topographic base map are provided in an Esri file geodatabase. The geologic mapsheet is also provided as a PDF.

Surficial geochemical methods used to identify subsurface mineral deposits covered by alluvium. Can a geophysical anomaly, interpreted as a buried granite pluton, be discerned from the geochemical characteristics of overlying Quaternary sediments?

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

Audiomagnetotelluric (AMT) sounding data collected in 2008 in this area in support of assessments of concealed mineral resources.

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.

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

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.

Hazard mitigation field experiment using the growth of native plants to stabilize mining wastes and potentially toxic elements in them (phytostabilization). Lab analysis of the materials for geochemistry and other pertinent characteristics of the soil and plants. Data are provided in CSV format.