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.

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.

<p>The Stillwater Complex is a Neoarchean, ultramafic to mafic layered intrusion exposed in the Beartooth Mountains in south-central Montana. This igneous intrusion contains magmatic mineralization that is variably enriched in strategic and critical commo

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

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

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

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

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

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

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.

Photographs and micrographs of rock taken from cores in this area. Data are provided in JPEG and CR2 formats.

Photographs and micrographs of hand samples and drill core from this area to study platinum-group element reef-type mineralization that occurs in the J-M Reef of the Stillwater Complex. Data are provided in JPEG and CR2 formats.

Photomicrographs, lithologic and textural information for drill core from this area to study contact-type mineralization that occurs near the lower contact (Basal series and hornfels rocks) of the complex. Data are provided as JPG and CR2 images.

Photographic images of thin sections of drill core from this area to study contact-type copper and nickel sulfide mineralization there. Data are provided in JPEG and CR2 formats, with a shapefile giving locations of the cores.

Micrographs (photographs taken using a microscope) of xenoliths (pre-existing rock material included in younger rocks) in this area, to understand the formation of mineral deposits there. Data are provided in JPEG and CR2 formats.

Lithologic and textural information for hand samples and drill core from this rock body, to study copper-nickel-platinum-group element mineralization that occurs at this locality. Data are provided in JPG and CR2 formats.

Lithologic and textural information for hand samples collected from these rock bodies, to study copper-nickel-platinum-group element mineralization that occurs there. Data are provided in JPG and CR2 image formats.

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

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.

A compilation of previously published mineral potential maps that were used for the Sagebrush Mineral Resource Assessment (SaMiRA) project. Data are provided in CSV, Esri file geodatabase, GeoTiff, and shapefile 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.

The U.S. Geological Survey completed the first-ever global assessment of undiscovered copper resources for the two most significant sources of global copper supply: porphyry copper deposits and sediment-hosted stratabound copper deposits. The geology-base

Polygons that describe areas of rock outcrop in the area of the Stillwater Complex, Montana from published reports and field mapping sheets. Includes both legacy data and outcrops from recent field mapping. This dataset contains overlapping polygons, as some areas had mapping from different sources that overlapped the same locations. Data are provided in shapefile format.

Geologic structure strike and dip information from this area from pre-existing digital strike and dip information and from digitizing strike and dip locations from georeferenced map images. Data are provided in shapefile format.

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.

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

Structural measurements taken from this area and surface traces of the structural measurements. Data are provided in shapefile 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.

Mathematical analysis of gravity and aeromagnetic data, with basic and derived grids and vector data and maps.

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.

Describes the methods, procedures, and fundamental reference information that were used throughout the assessment.

Information on titanium-vanadium deposits hosted in mafic-ultramafic layered intrusions and massif anorthosite intrusions from around the world. Includes only deposits with reported grade and tonnage information. Data are provided in CSV and shapefile formats.

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.

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.

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.

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.

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.

Scanned images of graphic drill core logs showing associated drill core information, explanatory information, and tabular data drawn from handwritten notes on the logs. Data are provided in TIFF and CSV formats.

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.

Locatable mineral assessment tracts, along with fundamental geological, mineral and energy resource data used in the assessment.

Cobalt (Co) is a potentially critical mineral. The vast majority of cobalt is a byproduct of copper and (or) nickel production. Cobalt is increasingly used in magnets and rechargeable batteries. More than 50 percent of primary cobalt production is from th

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

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

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

Permissive tracts for porphyry coppper and sediment-hosted copper worldwide, with known deposits and results of the assessment.

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

Previously created but unpublished map sheets were scanned, registered, and the contours were digitized. The point data released here were extracted from the digitized contour lines and include: latitude, longitude, and magnetic-field value (gamma). Data are provided in a fixed-field columnar text format.

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

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

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

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