Unknown Gemstone (MRDS - 10181910), Fremont Co., Wyoming, USA
Latitude & Longitude (WGS84): | 42° 33' 58'' North , 107° 35' 55'' West |
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Latitude & Longitude (decimal): | 42.56611,-107.59861 |
Köppen climate type: | BSk : Cold semi-arid (steppe) climate |
REF:Deposit:: AGATES & MOSS AGATES ARE COMMON IN MUCH OF SE FREMONT COUNTY
Deposit:: SE OF WIND RIVER & N OF SWEET WATER RIVER AND ALONG SAGE HEN
Deposit:: CREEK,18 MILES NORTH WEST OF SPLIT ROCK
Deposit:: WYO GEOL SURV BULL 50 1966 P157
Commodities (Major) - Gemstone
Development Status: Unknown
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.No minerals currently recorded for this locality.
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
Late Miocene 5.333 - 11.62 Ma ID: 2850362 | 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. Lithology: Major:{sandstone,claystone,conglomerate}, Minor:{siltstone,volcanic,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] |
Eocene 33.9 - 56 Ma ID: 3190876 | Cenozoic sedimentary rocks Age: Eocene (33.9 - 56 Ma) Lithology: Sedimentary rocks 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. [154] |
Archean 2500 - 4000 Ma ID: 3194985 | Granite and light-colored igneous intrusives Age: Archean (2500 - 4000 Ma) Description: Granite and granitic rocks incluing granites identified by Langstaff, 1994, along with diorite, tonalite, etc. The boundaries between granite and gneiss is often gradational. Layering is evident in many granites. Most contacts were picked from aerial photography followed by spot-checks in the field. Reference: Sutherland, W., and W.D. Hausel. Geologic Map Of The Rattlesnake Hills 30' X 60' Quadrangle, Fremont And Natrona Counties, Wyoming. Wyoming State Geological Survey Map Series 61. [155] |
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