Joe Reynolds (Elida), Lawson District (Dumont District), Clear Creek Co., Colorado, USA
Latitude & Longitude (WGS84): | 39° 45' 15'' North , 105° 37' 31'' West |
---|---|
Latitude & Longitude (decimal): | 39.75417,-105.62528 |
KΓΆppen climate type: | Dfc : Subarctic climate |
SOURCE OF INFORMATION: E.R.D.A. OPEN FILE DATA
Commodities (Major) - Uranium, Silver, Gold, Zinc, Lead
Deposit Type: Vein
Development Status: Producer
Host Rock Unit: Morrison Formation
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
16 valid minerals.
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
Paleoproterozoic 1600 - 2500 Ma ID: 2957947 | Biotitic gneiss, schist, and migmatite Age: Proterozoic (1600 - 2500 Ma) Description: Locally contains minor hornblende gneiss, calc-silicate rock, quartzite, and marble. Derived principally from sedimentary rocks Lithology: Major:{biotite gneiss,schist,migmatite}, Minor:{gneiss,calc silicate schist,marble} 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] |
Paleoproterozoic 1600 - 2500 Ma ID: 3186950 | Paleoproterozoic crystalline metamorphic rocks Age: Proterozoic (1600 - 2500 Ma) Lithology: Orthogneiss/paragneiss 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] |
Paleoproterozoic 1600 - 2500 Ma ID: 2207419 | Biotite gneiss Age: Proterozoic (1600 - 2500 Ma) Description: Gray, medium-grained, equigranular, well-foliated gneiss typically containing approximately 25β50 percent quartz, 20β30 percent plagioclase (approximately An30), 0β30 percent microcline, 10β15 percent biotite, 0β15 percent muscovite, 0β10 percent sillimanite, 0β5 percent hornblende, 1β2 percent opaque minerals, and a trace zircon. Most outcrops contain 5β20 percent granitic layers (leucosomes). Sillimanite, where abundant, occurs in fibrous, elongate, light-colored aggregates or clots as wide as about 1 cm. Migmatitic biotite gneiss in Clear Creek gave preliminary U-Pb zircon date on nonmelt phase of 1,773Β±18 Ma; near Pine, just south of map area, similar rock gave U-Pb zircon date of 1,780Β±9 Ma (W.R. Premo, unpub. data, 2005) Reference: Kellogg, K.S., Shroba, R.R., Bryant, Bruce, and Premo, W.R. Geologic Map of the Denver West 30' x 60' Quadrangle, North- Central Colorado. USGS Geologic Investigations Series 3000. [35] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License