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Pelican Point Quarry (Lakeside Lime Quarry), Pelican Point, Utah Lake, Utah Co., Utah, USA

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Latitude & Longitude (WGS84): 40° 16' North , 111° 51' West
Latitude & Longitude (decimal): 40.26667,-111.85000


World famous locality for exceptional goethite pseudomorphs of goethite after pyrite.

A marble & calcite (onyx) quarry in blue limestone. Owned by Mr. Cedarstrom. Located on the NW shore of Utah Lake about 35 miles South of Salt Lake City and 7 miles West of Lehi.

Geology: A sequence of limestones, dolomites, and calcareous mudstones of the Deseret formation that originated in a Mississippian shallow, lagoon environment. The goethite specimens are found in the calcareous mudstone along with a number of marine fossils, and have been collected at this site since the 1930s. Where not exposed and altered at the surface, oxidation is by exposure to groundwater.

Mineral List


4 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

Ma
water

Age: Anthropocene ( Ma)

Reference: Constenius, K.N., Clark, D.L., King, J.K., and Ehler, J.B. Interim geologic map of the Provo 30′ x 60′ quadrangle, Utah, Wasatch, and Salt Lake Counties, Utah. Utah Geological Survey Open-File Report 586DM. [61]

Pleistocene
0.0117 - 2.588 Ma
Lake Bonneville deposits

Age: Pleistocene (0.0117 - 2.588 Ma)

Lithology: Major:{clay}, Minor:{sand,gravel,marl}, Incidental:{volcanic}

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

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10203618 & 10021319.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0490490148.

Rocks & Minerals: 12: 274-277.

External Links


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