Research Geologist
Email:
cmercer@usgs.gov
Office Phone:
303-236-1866
Fax:
303-236-3200
ORCID:
0000-0001-8359-4147
|
A mineral resource assessment for tungsten, a critical mineral commodity (see 'Related External Resources' section below) for the United States, was carried out by the U.S. Geological Survey (USGS) for a portion of the Great Basin region, in western Nevada and eastern California, between latitudes 36N and 42N and longitudes 116W and 120W. This study (Lederer and others, in review) integrates data from several sources, including geologic, geochemical, geophysical, remote sensing, watershed analysis, and mining with recently developed grade and tonnage models, expert estimates, and software tools and analyses to generate probabilistic estimates of undiscovered tungsten skarn resources. The assessment was conducted...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alpine County,
California,
Carbonate rock,
Churchill County,
Douglas County, All tags...
Elko County,
Esmeralda County,
Eureka County,
Fresno County,
Granite,
Great Basin,
Humboldt County,
Inyo County,
Kings County,
Lander County,
Lyon County,
Madera County,
Mariposa County,
Mineral County,
Mono County,
Nevada,
Nye County,
Pershing County,
Skarn,
Storey County,
Tulare County,
Tuolumne County,
USGS Science Data Catalog (SDC),
Washoe County,
chemical analysis,
critical minerals,
geochemistry,
geophysics,
geoscientificInformation,
metallic mineral resources,
mineral deposits,
remote sensing,
tungsten,
unconsolidated deposits, Fewer tags
|
The U.S. Geological Survey (USGS) has undertaken a mineral resources assessment for tungsten for a portion of the Great Basin in parts of western Nevada and east-central California. This data release provides the Great Basin Tungsten Database: the geospatial and geologic data, and results of chemical analyses for 46,955 samples collected in the assessment area, extracted from the USGS National Geochemical Database. These rock records were collected as part of various programs and projects at the USGS and analyzed from 1963 to 2015. The database represents rock records, each comprising one best value chemical determination for each analyzed chemical species, that include skarns, carbonate lithologies (for example,...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: California,
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
Great Basin,
MRP, All tags...
Mineral Resource Assessment Training Program,
Mineral Resources Program,
NGDB,
National Geochemical Database,
Nevada,
U.S. Geological Survey,
USGS,
USGS Science Data Catalog (SDC),
United States,
aluminum,
analytical chemistry,
antimony,
arsenic,
atomic emission spectroscopy,
barium,
beryllium,
bismuth,
boron,
bromine,
cadmium,
calcium,
carbon,
cerium,
cesium,
chemical analysis,
chlorine,
chromium,
cobalt,
copper,
critical minerals,
dysprosium,
economic geology,
erbium,
europium,
fluorine,
gadolinium,
gallium,
geochemical data,
geochemistry,
geoscientificInformation,
germanium,
gold,
hafnium,
holmium,
indium,
iridium,
iron,
lanthanum,
lead,
lithium,
lutetium,
magnesium,
manganese,
mercury,
metallic mineral resources,
mineral deposits,
mineral resources,
molybdenum,
neodymium,
nickel,
niobium,
palladium,
phosphorus,
platinum,
potassium,
praseodymium,
rhenium,
rhodium,
rock geochemistry,
rocks and deposits,
rubidium,
ruthenium,
samarium,
scandium,
selenium,
silicon,
silver,
sodium,
strontium,
sulfur,
tantalum,
tellurium,
terbium,
thallium,
thorium,
thulium,
tin,
titanium,
tungsten,
uranium,
vanadium,
ytterbium,
yttrium,
zinc,
zirconium, Fewer tags
|
This dataset contains geochemical, geochronologic, and isotopic data collected for zircons and zircon-hosted melt and mineral inclusions in the St. Francois Mountains terrane, southeast Missouri, USA.
|
The dataset consists of the input data, parameters, and results output from mineral resource assessment calculations.
Categories: Data;
Tags: California,
Economic Geology,
Geochemistry,
Geophysics,
Mineral Resources, All tags...
Nevada,
Remote Sensing,
USGS Science Data Catalog (SDC),
geoscientificInformation,
mineral resources,
tungsten, Fewer tags
|
This data release presents geochemical analyses of silicate melt inclusions, host quartz phenocrysts, and biotite phenocrysts in samples collected by the U.S. Geological Survey (USGS) from mid-Cenozoic rhyolitic rocks from northern Nevada. Igneous intrusions and volcanic rocks in this study encompass nineteen rhyolitic samples from five magmatic centers across northeastern Nevada. Rhyolites were emplaced throughout northeastern Nevada over about an 8 million year timespan (41–33 mega-annum) in a variety of eruptive styles and volumes, ranging from meter-wide dikes to caldera-forming ignimbrites, and were roughly contemporaneous with regional ore deposition. Samples were prepared for petrographic and scanning electron...
Categories: Data;
Tags: Bald Mountain,
Beast pit,
Blue Star Mine,
Caetano Caldera,
Carico Lake Valley, All tags...
Carlin-type gold,
Copper Canyon,
Cortez Hills pit,
EMP,
Economic Geology,
Electron microprobe,
Elko County,
Eureka,
Eureka County,
FTIR,
Fish Creek Range,
Fourier transform infrared spectroscopy,
GGGSC,
Genesis pit,
Geology, Geophysics, and Geochemistry Science Center,
LA-ICP-MS,
Lander County,
Laser-ablation inductively coupled plasma mass spectrometry,
MRP,
Magmas to Metals project,
Maverick Springs Range,
Mineral Resources,
Mineral Resources Program,
Mount Tenabo,
Nanny Creek,
Nevada,
Pequop Mountains,
Rocky Pass,
SEM,
SHRIMP-RG,
Scanning electron microscope,
Sensitive high-resolution ion microprobe-reverse geometry,
Shoshone Range,
Target Hill,
Toiyabe Range,
Tuscarora Mountains,
U.S. Geological Survey,
USGS,
USGS Science Data Catalog (SDC),
United States,
Volcanology,
White Pine County,
chemical analysis,
economy,
geoscientificInformation,
igneous rocks,
magma plumbing system,
magmatic volatiles,
melt inclusions,
metallogenic potential,
mineral resources,
ore deposits,
petrography,
porphyry deposit,
rare earth elements,
rhyolite,
rocks and deposits,
thermobarometry, Fewer tags
|
View more...
|
