Meyers - McMullin pegmatite occurrence, Eight Mile Park pegmatite District, Fremont Co., Colorado, USA
|Latitude & Longitude (WGS84):||38° 28' 19'' North , 105° 19' 34'' West|
|Latitude & Longitude (decimal):||38.47222,-105.32639|
|Köppen climate type:||BSk : Cold semi-arid (steppe) climate|
Commodities (Major) - Feldspar; (Minor) - Beryllium, Mica
Development Status: Occurrence
Host Rock Unit: Migmatitic Gneiss
Structure: Ne-Trending Faults, Southern Front Range, Canon City Embayment, Eightmile Park
Host Rock: Granitic Gneiss
Tectonic Structure: Central Cordillera (Southern Rocky Mountains)
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
8 valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
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
201.3 - 252.17 Ma
|Mesozoic sedimentary rocks|
Age: Triassic (201.3 - 252.17 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. 
1600 - 2500 Ma
|Felsic and hornblendic gneisses, either separate or interlayered|
Age: Proterozoic (1600 - 2500 Ma)
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.