North London Mine, Mount Lincoln, Alma District, Park Co., Colorado, USA
|Latitude & Longitude (WGS84):||39° 17' 21'' North , 106° 9' 47'' West|
|Latitude & Longitude (decimal):||39.28917,-106.16306|
|Köppen climate type:||Dfc : Subarctic climate|
Ref.: Metal Mining Mining Geology, A.I.M.E. (1937): 432 & 437. A gold mine located near Alma.
6 valid minerals.
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
|Holocene - Late Pleistocene|
0 - 0.126 Ma
|Talus and rock-glacier deposits, undivided|
Age: Pleistocene (0 - 0.126 Ma)
Description: Unit locally mapped in the Sawatch Range and Mosquito Range where talus deposits (Qt) and rock-glacier deposits (Qr) are too small to show separately at map scale. Estimated thickness is as much as 50 m
Reference: Kellogg, K.S., R.R. Shroba, C.A. Ruleman, R.G. Bohannon, W.C. McIntosh, W.R. Premo, M.A. Cosca, R.J. Moscati, T.R. Brandt. Geologic map of the upper Arkansas River valley region, north-central Colorado. doi: 10.3133/sim3382. U.S. Geological Survey Scientific Investigations Map 3382. 
|Permian - Devonian|
252.17 - 419.2 Ma
|Paleozoic sedimentary rocks|
Age: Paleozoic (252.17 - 419.2 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. 
298.9 - 323.2 Ma
|Minturn Fm in west-central and south-central and other units|
Age: Pennsylvanian (298.9 - 323.2 Ma)
Stratigraphic Name: Minturn Formation
Description: Arkosic sandstone, conglomerate, shale, and limestone. Includes Madera Fm and Sharpsdale Fm of Chronic (1958) in Sangre de Cristo Range and Gothic Fm of Langenheim (1952) in Elk Mountains. Other units of Middle Pennsylvanian age.
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.