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Unnamed coal mine, Weld Co., Colorado, USA

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Latitude & Longitude (WGS84): 40° 5' 8'' North , 104° 57' 27'' West
Latitude & Longitude (decimal): 40.08562,-104.95772
Köppen climate type:BSk : Cold semi-arid (steppe) climate


Laramie formation. Boulder-Weld coal field.
Near intersection of Colorado 52 and county road 11


Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


12 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

Holocene
0 - 0.0117 Ma



ID: 2215789
Eolium (Windblown Clay, Silt (Loess), Sand And Granules)

Age: Anthropocene (0 - 0.0117 Ma)

Description: Light-brown to reddish-brown to olive-gray deposits of windblown clay, silt, sand, and granules mainly as sand dunes in the east half of the area but also as a blanket of loess between the Front Range and the South Platte River. Loess is as much as 15 fe

Reference: Colton, Roger B. Geologic Map of the Boulder-Fort Collins-Greeley area, Colorado . U.S. Geological Survey Geologic Investigations Series I-855-G. [37]

Late Cretaceous
66 - 100.5 Ma



ID: 2825373
Laramie Fm and Fox Hills Sandstone

Age: Late Cretaceous (66 - 100.5 Ma)

Stratigraphic Name: Laramie Formation; Fox Hills Sandstone

Lithology: Major:{sandstone,shale,claystone}

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]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

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Zielinski, R. A., Otton, J. K., & Johnson, C. A. (2001). Sources of salinity near a coal mine spoil pile, north-central Colorado. Journal of environmental quality, 30(4), 1237-1248.

 
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