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Clam Lake Salt Dome (Clam Lake Oil Field), Clam Lake, Jefferson Co., Texas, USA

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Latitude & Longitude (WGS84): 29° 42' 30'' North , 94° 6' 30'' West
Latitude & Longitude (decimal): 29.70858,-94.10853
Köppen climate type:Cfa : Humid subtropical climate

A salt deposit located along the N shore of Clam Lake and about 12.5 miles S10E of Labelle, on private land. Discovered in 1937. MRDS database accuracy for this location is not stated. Oil and gas production has been occurring since 1937 to present.

Mineralization is a salt dome deposit (Mineral occurrence model information: Model code: 252; USGS model code: 35a.4 (35ad); Deposit model name: Salt domes: diapiric salt structures), hosted in the Late Jurassic Louann Salt. The ore body is a diapir with a depth-to-top of 2,491.13 meters. No caprock is present. Local rocks include alluvium.

Commodity List

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

Mineral List

1 valid mineral.

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

0 - 0.0117 Ma

ID: 3004981

Age: Anthropocene (0 - 0.0117 Ma)

Description: alluvium and low terrace deposits along streams, sand, silt, clay, and gravel. Thickness variable. The unit appears on Geologic Map of Texas on the lagoon side of barrier islands where they represent lagoon and wind-tidal-flat sand and clay. These deposits of clay and silty, clayey fine to v. fine quartz sand and shell sand accumulate on alternately dry and flooded barren flats 0.3 m below to 1 m above mean sea level. Mapped areas include active eolian sand dunes on the landward side of barrier islands.

Lithology: Major:{fine alluvium,coarse alluvium}

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, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on 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 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.


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Williams, K.O. (1962), Clam Lake Field, in Typical Oil and Gas Fields of Southeast Texas, Houston Geological Society: 1: 34-37.
Halbouty, Michel T. (1979), Salt Domes - Gulf Coast, Gulf Publishing Company, Houston, Texas.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10064523.

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