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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...


    map background search result map search result map Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho Powder River Basin boundary, 1999 Coal Resource Assessment (prbbndg.shp) Wyodak-Anderson net coal thickness in the Sheridan coalfield, Wyoming (shrcatg) Tertiary-aged coal beds in the Sheridan coalfield, Wyoming (shrcbg) Wyodak-Anderson coal zone study limit in the Powder River Basin, Wyoming and Montana (wabndg.shp) Tertiary-aged coal beds in the Sheridan coalfield, Wyoming (shrcbg) Wyodak-Anderson net coal thickness in the Sheridan coalfield, Wyoming (shrcatg) Wyodak-Anderson coal zone study limit in the Powder River Basin, Wyoming and Montana (wabndg.shp) Powder River Basin boundary, 1999 Coal Resource Assessment (prbbndg.shp) Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho