South Pass Mines, South Pass-Atlantic City Mining District, Fremont Co., Wyoming, USAi
|Regional Level Types|
|South Pass Mines||Group of Mines|
|South Pass-Atlantic City Mining District||Mining District|
Commodities (Major) - Tungsten
Development Status: Occurrence
Host Rock: Gneiss
Regions containing this locality
|North America Plate||Tectonic Plate|
|Rocky Mountains, North America||Mountain Range|
Select Mineral List TypeStandard Detailed Strunz Dana Chemical Elements
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
1 valid mineral.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Detailed Mineral List:
| ⓘ Scheelite|
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
List of minerals arranged by Strunz 10th Edition classification
|Group 7 - Sulphates, Chromates, Molybdates and Tungstates|
List of minerals arranged by Dana 8th Edition classification
|Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES|
List of minerals for each chemical element
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
5.333 - 11.62 Ma
|Upper Miocene Rocks|
Age: Miocene (5.333 - 11.62 Ma)
Description: Southwest Wyoming: South end of Wind River Range--Siliceous, arkosic, and locally radioactive sandstone, claystone, and conglomerate. Fission-track age about 27 Ma. Recent work suggests that part of these deposits may be of Eocene age. Pliocene and Miocene (as originally defined 2) South Pass Formation. Saratoga Valley--White to greenish-gray tuffaceous sandstone, siltstone, and claystone; locally conglomeratic. North Park Formation; Central Wyoming: Arkosic sandstone, conglomerate, and siltstone; some light-colored tuffaceous radioactive claystone and white cherty limestone. North of Sweetwater River in Granite Mountains--Light-colored tuffaceous radioactive claystone, siltstone, sandstone, and arkose. Moonstone Formation; East Wyoming: Light-colored tuffaceous claystone, sandstone, and conglomerate. Ogallala Formation in Denver Basin.
Comments: Original map source: Green, Gregory N., and Drouillard, Patricia H., 1994, The Digital Geologic Map of Wyoming in ARC/INFO Format: U.S. Geological Survey Open-File Report 94-0425, scale 1:500,000.
Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. 
2500 - 4000 Ma
|Archean crystalline metamorphic rocks|
Age: Archean (2500 - 4000 Ma)
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529.