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The Critical Minerals in Archived Mine Samples Database (CMDB) contains chemistry and geologic information for historic ore and ore-related rock samples from mineral deposits in the United States. In addition, the database contains samples from archetypal deposits from 27 other countries in North America, South America, Asia, Africa and Europe. Samples were obtained from archived ore collections under the U.S. Geological Survey's project titled "Quick Assessment of Rare and Critical Metals in Ore Deposits: A National Assessment" (2008 to 2013) in an effort to begin an assessment of the Nations' previously mined ore deposits for critical minerals. Mineralized and altered rock samples were provided by the Colorado...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Alaska,
Argentina,
Arizona,
Arkansas,
Australia, All tags...
Brazil,
Burma,
California,
Canada,
Chile,
China,
Colorado,
Cuba,
Democratic Republic of Congo,
Economic Geology,
Finland,
Geochemistry,
Germany,
Honduras,
Idaho,
India,
Indonesia,
Japan,
Kansas,
Kentucky,
Maine,
Mauritania,
Mexico,
Michigan,
Mineral Resources,
Minnesota,
Missouri,
Montana,
NGDB,
Namibia,
National Geochemical Database,
Nevada,
New Jersey,
New Mexico,
New York,
North Carolina,
Norway,
Oklahoma,
Oregon,
Papua New Guinea,
Pennsylvania,
Peru,
Philippines,
Poland,
Portugal,
Russia,
South Africa,
South Carolina,
South Dakota,
Sweden,
Tennessee,
Texas,
USGS Science Data Catalog (SDC),
United States,
Utah,
Vietnam,
Virginia,
Washington,
Wisconsin,
Wyoming,
Zambia,
aluminum,
antimony,
arsenic,
atomic emission spectroscopy,
barium,
beryllium,
bismuth,
boron,
cadmium,
calcium,
cerium,
chemical analysis,
chromium,
cobalt,
copper,
critical minerals,
dysprosium,
economic geology,
erbium,
europium,
fluorine,
gadolinium,
gallium,
geochemical data,
geochemistry,
geoscientific information,
germanium,
gold,
hafnium,
historic ores,
holmium,
indium,
iron,
lanthanum,
lead,
lithium,
lutetium,
magnesium,
manganese,
metallic mineral resources,
mineral deposit type,
mineral deposits,
mineralogy,
molybdenum,
neodymium,
nickel,
niobium,
nonmetallic mineral resources,
palladium,
phosphorus,
platinum,
potassium,
praseodymium,
rhenium,
rock geochemistry,
rocks and deposits,
samarium,
scandium,
silicon,
silver,
strontium,
sulfur,
tantalum,
tellurium,
terbium,
thallium,
thorium,
thulium,
tin,
titanium,
tungsten,
uranium,
vanadium,
ytterbium,
yttrium,
zinc,
zirconium, Fewer tags
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This dataset is a collection of geochemical data on samples from the Stibnite-Yellow Pine district of Idaho. The datasets include: whole rock geochemistry; lead, strontium and neodymium isotope chemistry of sulfides and whole rock samples by isotope dilution-thermal-mass spectrometry (ID-TIMS); in situ sulfur isotope chemistry of sulfides by laser ablation-multi collector-inductively coupled-mass spectrometry (LA-MC-ICP-MS); electron microprobe (EMP) images, cathodoluminescence (CL) images and spectra, along with EMP and laser ablation-inductively coupled-mass spectrometry (LA-ICP-MS) trace element analysis of sulfides and quartz; and fluid inclusion microthermometry and raman. Samples were collected from the surface...
Categories: Data;
Tags: Cinnabar,
GGGSC,
Geochemistry,
Geology, Geophysics, and Geochemistry Science Center,
Hangar Flats, All tags...
Idaho,
MRP,
Mineral Resources Program,
Mineralogy,
Stibnite,
U.S. Geological Survey,
USGS,
USGS Science Data Catalog (SDC),
West End,
Yellow Pine Mine,
arsenopyrite,
economic geology,
economy,
geochemistry,
geoscientificInformation,
gold,
mass spectroscopy,
metallic mineral resources,
mineralogy,
particle-beam spectroscopy,
pyrite,
scanning electron microscopy,
stibnite, Fewer tags
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In situ geochemical data were obtained for pyrite crystals and native gold from two distinct vein sets in the Grass Valley gold district, California. Samples of the N-S veins were collected underground at the Empire Mine State Historic Park and samples of the E-W veins were collected from drill core provided by the Idaho-Maryland Mining Corporation in 2008. These geochemical data were analyzed to better understand paragenesis of quartz veins in orogenic gold deposits. Data includes electron probe microanalysis (EPMA) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) chemistry and LA-ICP-MS sulfur isotope values for pyrite crystals, and EPMA geochemistry of native gold grains found within...
Categories: Data;
Tags: California,
EPMA,
Geochemistry,
Grass Valley,
LA-ICP-MS, All tags...
Mineralogy,
USGS Science Data Catalog (SDC),
chemical analysis,
electron probe microanalysis,
geochemistry,
geoscientificInformation,
gold,
mineralogy,
rock,
rock geochemistry, Fewer tags
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This U.S. Geological Survey (USGS) data release contains analytical data from a suite of rock and mineral samples collected from drill core within the Elk Creek alkaline complex, southeast Nebraska. This complex hosts the Elk Creek carbonatite, a multilithologic carbonatite enriched in niobium, rare earth elements (REEs), scandium, and titanium. Mineralized carbonatites are the world’s primary source of rare earth elements (REEs) and niobium, but only a few deposits are responsible for meeting the current demand of these critical elements such that there is increasing interest in other carbonatites that have the potential to help meet future demands. This study focuses on the Elk Creek carbonatite, the largest...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Economic Geology,
Elk Creek,
Elk Creek carbonatite,
Geochemistry,
Johnson County, All tags...
Mineral Resources,
Nebraska,
Pawnee County,
USGS Science Data Catalog (SDC),
carbonatite,
economic geology,
geochemistry,
geology,
mineral resources,
niobium,
rare earth elements, Fewer tags
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Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) analyses of apatite provide trace element concentrations that support indicator mineral studies near the Taurus porphyry Cu-Mo deposit in the eastern Tanacross quadrangle, Alaska. The Taurus deposit and others in the region are mostly concealed, and traditional stream sediment samples typically show subdued geochemical signatures. The indicator mineral studies include collection of stream sediment samples and analysis using automated SEM mineralogical techniques. The presence of select minerals in the stream sediments may indicate mineralization. In addition, the chemistry of specific minerals may be used to distinguish a hydrothermal origin...
Categories: Data;
Tags: Alaska,
GGGSC,
Geochemistry,
Geology, Geophysics, and Geochemistry Science Center,
LA-ICP-MS, All tags...
MRP,
Mineral Resource Program,
Tanacross,
USGS Science Data Catalog (SDC),
apatite,
chemical analysis,
geochemistry,
geoscientificInformation,
laser ablation inductively coupled plasma mass spectrometry,
mineral resources,
mineralogy,
ore formation,
taurus porphyry,
unconsolidated deposits, Fewer tags
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