Williams Mine (State Line Prospect), Monroe Co., West Virginia, USA
Latitude & Longitude (WGS84): | 37° 28' 28'' North , 80° 26' 58'' West |
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Latitude & Longitude (decimal): | 37.4744444444, -80.4494444444 |
Commodities (Major) - Manganese
Deposit Type: Residual
Development Status: Occurrence
Mineral List
Regional Geology
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
Devonian 358.9 - 419.2 Ma | Oriskany Sandstone and Huntersville Chert Age: Devonian (358.9 - 419.2 Ma) Stratigraphic Name: Oriskany Sandstone; Huntersville Chert Description: Oriskany Sandstone: sometimes designated Ridgeley in eastern West Virginia. White to brown coarse- to fine-grained, partly calcareous sandstone, locally pebbly or conglomeratic, and ridge-forming. May be white, nearly pure silica, and a source of glass sand, as at Berkeley Springs, Morgan County. Huntersville Chert (part of Onesquethaw ("Onondaga") Group): ranges from a nearly pure slightly calcitic or dolomitic chert to an inter-tonguing of such chert and the Needmore Shale. Grades westward in the subsurface to a limestone, commonly considered as "Onondaga". Contains the "glauconitic" Bobs Ridge Sandstone Member. Not mappable at scale of this map. Included with Do. Comments: Only named Oriskany Sandstone on printed map, but Huntersville Chert description says it is included and mapped with Oriskany Sandstone (Do). Thickness: Northeastern - Oriskany Sandstone 12-275 ft, Western - Huntersville Chert 285 ft, Western - Oriskany Sandstone 75 ft, Southeastern - Huntersville Chert 75 ft. Lithology: Major:{sandstone,chert}, Minor:{limestone} 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. [133] |
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