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

Detailed geological and geochemical studies of this large deposit provided evidence for the origin and characteristics favorable for its formation and parameters necessary for defining giant polymetallic deposits of hydrothermal origin.

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.

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.

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

Detailed chemical and isotopic analysis of host and associated rocks within an area that is currently the largest producer of gold in the US. Part of a study of the hydrothermal activity leading to the formation of these gold deposits.

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

Uninterpreted geophysical measurements and geochemical and mineralogical analytical data from samples collected during the summer field seasons from 2007 to 2010. Data are available in a single Geographic Information System (GIS) 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.

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.

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

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

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

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.

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

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.

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.

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

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

Summarizes the primary characteristics of alkalic-type epithermal gold deposits and provides an updated descriptive model, including geologic setting and processes, associated deposit types and commodities, Discusses examples of this type.

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

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.

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

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

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

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

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

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).

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

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

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

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

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

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.

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.

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.

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

Includes data on mineral deposit locations and geochemical analyses

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.

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

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

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

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.

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

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

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

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

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.

GeoTIFF rendition of locally enhanced ALOS image mosaics for the Haji-Gak mineral district, which has copper and gold deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain copper deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain gold deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain clay, gypsum, and coal deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain copper deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain copper and tin deposits

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area expected to contain copper, zinc, lead, silver, and gold deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area expected to contain clay, aluminum, gold, silver, mercury, and sulfur deposits

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area expected to contain gold, mercury, and sulfur deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for the Haji-Gak mineral district, which has iron ore deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain gold deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain rare-earth element deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain mercury deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain porphyry copper and gold deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain lead and zinc deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for the Haji-Gak mineral district, which has copper deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain placer gold deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for the Haji-Gak mineral district, which has gem, lithium, and cesium deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain emerald and silver-iron deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for the Parwan mineral district, which has gold and copper deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain industrial travertine deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain industrial evaporite deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain tin deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain tin and tungsten deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for this area known to contain copper and gold deposits.

GeoTIFF rendition of locally enhanced ALOS image mosaics for several areas known to contain mineral deposits.

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

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

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

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.

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.

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 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.

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.

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

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.

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

Geochemical analysis and characteristics of bauxite deposits in this area.

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.

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

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.

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, 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.

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.

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.

This report is part of an effort by the U.S. Geological Survey to update existing mineral deposit models and to develop new ones. The global transition away from hydrocarbons toward energy alternatives increases demand for many scarce metals. Among these

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

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

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.

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

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

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

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

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

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.

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.

Analytical results for geochemical samples collected in 2007 from the Pebble deposit and surrounding environs

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

Geochemical data for stream sediment, surface-water, rock, precipitate, and vegetation samples from Red Mountain

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

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

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

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

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.

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

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

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

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

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

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

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

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.

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.

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

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

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

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.

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

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

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.

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 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 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 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 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.

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.

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.

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

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

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

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

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.

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

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

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.

Tellurium is a rare element obtained as a byproduct of mining for other commodities whose main uses are in photovoltaic solar cells and as an additive to copper, lead, and steel alloys in various types of machinery.

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

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

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.

Tin (Sn) is one of the first metals to be used by humans. Almost without exception, tin is used as an alloy. Its major uses today are for cans and containers, construction materials, transportation materials, and solder.

Titanium colors paint, paper, plastic, rubber, and wallboard. Because of its strength and corrosion resistance, titanium metal and its alloys are used in the aerospace industry as well as for welding rod coatings, biological implants, and consumer goods.

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

Explains supply and demand for US copper. Worldwide demand increased, much of that from China. Chinese demand for copper scrap from the US has decreased recently, which could lead to an oversupply and declining prices.

Vanadium is used primarily in the production of steel alloys; as a catalyst for the chemical industry; in the making of ceramics, glasses, and pigments; and in vanadium redox-flow batteries (VRBs) for large-scale storage of electricity.

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.

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

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.

Zirconium and hafnium are corrosion-resistant metals that are widely used in the chemical and nuclear industries. Most zirconium is consumed in the form of the main ore mineral zircon or as zirconium oxide or other zirconium chemicals.