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Pyramid Group (Derby Nos. 1-4; MS 17971; Throughbred Nos. 1-4; MS 17971), Sinbad District, Mesa Co., Colorado, USA

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Latitude & Longitude (WGS84): 38° 31' 33'' North , 109° 1' 53'' West
Latitude & Longitude (decimal): 38.52583,-109.03139
Köppen climate type:BSk : Cold semi-arid (steppe) climate

REF:Patented Claims: Princess Nos. 1-2; MS 17971; Pyramid Nos. 1-4; MS 17971; Kentucky Boy Nos. 1-3; MS 17971
Commodities (Major) - Copper; (Trace) - Chromium
Deposit Type: Vein
Development Status: Past Producer
Host Rock Unit: Chinle Formation, Cutler Formation
Structure: Paradox Basin Fold And Fault Belt, Sinbad Valley Anticline, Sinbad Valley Graben
Host Rock: Sandstone
Tectonic Structure: Colorado Platform

Commodity List

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

Mineral List

5 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

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

Early Jurassic - Late Triassic
174.1 - 237 Ma

ID: 3185972
Mesozoic sedimentary rocks

Age: Mesozoic (174.1 - 237 Ma)

Lithology: Sandstone-conglomerate

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]

Early Jurassic - Late Triassic
174.1 - 237 Ma

ID: 2791644
Glen Canyon Group and Chinle Fm

Age: Mesozoic (174.1 - 237 Ma)

Stratigraphic Name: Glen Canyon Group; Chinle Formation

Description: In southwest, Glen Canyon Group consists of Navajo Sandstone, Kayenta Fm (red siltstone, shale, and sandstone) and Wingate Sandstone; Chinle is red siltstone

Lithology: Major:{sandstone,siltstone,shale}

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]

Early Jurassic
174.1 - 201.3 Ma

ID: 2178043
Wingate Sandstone

Age: Early Jurassic (174.1 - 201.3 Ma)

Stratigraphic Name: Wingate Sandstone

Description: Orange-brown, dark-brown-weathering, fine-grained, massive sandstone; forms vertical cliff along canyon walls, commonly stained with desert varnish; abrupt contact with underlying Chinle Formation placed at base of massive, cliff-forming sandstone or on top of thick, orange-brown, flat- bedded sandstone (J-0 unconformity) below which typical Chinle slope- forming siltstones and sandstones are found; 75 to 137 meters (250-450 ft) thick; Lower Jurassic.

Reference: Doelling, H.H. Geologic map of the Moab and eastern part of the San Rafael Desert 30x60 Quad. Utah Geological Survey. [30]

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

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