Filters: Tags: Bald Mountain (X) > partyWithName: U.S. Geological Survey (X)

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Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho A mineral resource assessment was performed by the U.S. Geological Survey (USGS) to assess the potential of undiscovered skarn-hosted tungsten resources in the Northern Rocky Mountain region of eastern Idaho and western Montana. This region has seen moderate tungsten trioxide (WO3) production in the past from a variety of mineralization styles including skarn, vein and replacement, and wolframite-quartz veins. The geology of the area is dominated by large plutons of Cretaceous to Tertiary age, emplaced into a belt of sedimentary rock ranging from Mesoproterozoic to Permian age, and affected by tectonism related to the Sevier and later Laramide orogenies. Known tungsten (W) skarn mineral sites are associated with... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Ashton, Bald Mountain, Beaverhead County, Bitterroot Range, Boise County, All tags... Bozeman, Broadwater County, Butte, Challis, Choteau, Cretaceous, Custer County, Deer Lodge County, Dillon, Dubois, Elk City, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Granite County, Great Falls, Hamilton, Helena, Idaho, Idaho County, Jefferson County, Lewis and Clark County, Little Belt Mountains, MRP, Madison County, Mesoproterozoic, Mineral Resources Program, Montana, Northern Rocky Mountains, Paleozoic, Pioneer Mountains, Powell County, Ravali County, Rocky Mountain, Silver Bow County, Tertiary, Thompson Creek, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), United States, Valley County, Wallace, White Sulphur Spring, Yellow Pine, economic geology, economy, geochemistry, geophysics, geoscientificInformation, idaho, igneous rocks, metallic mineral resources, mineral assessment, mineral assessment, mineral deposits, mineral resources, montana, plutonic rocks, rocks and deposits, sedimentary rocks, tungsten, tungsten, Fewer tags Bald Mountain. Forest, California. Sierra County, California. 1924. Flows of Pleistocene basalt capping Miocene andesitic breccia on Bald Mountain. Part of the town of Forest, California in the foreground. Sierra County, California. 1924. Plate 5-D, U.S.Geological Survey Professional paper 172. 1932. Categories: Image; Tags: Bald Mountain, Ferguson, H.G. Collection, Miocene andesitic breccia, Photographers, Pleistocene basalt, All tags... Sierra County, California, photo print, Fewer tags Melt inclusion and mineral geochemical analyses supporting the evaluation of petrogenesis, degassing, and metallogenic potential of mid-Cenozoic rhyolite magmas in northern Nevada, USA 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