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Tansill Formation

Tansill Formation
StateTexas
NameTansill Formation
Geologic agePhanerozoic | Paleozoic | Permian [Guadalupe]
Original map labelPt
CommentsMostly dolomite, fine grained, very thick to medium bedded, pale yellowish brown; weathers very pale orange, small anhydrite crystal molds common on weathered surfaces; some fossilferous limestone in northern Apache Mtns.; thickness 75 to 100+ ft.
Primary rock typedolostone (dolomite)
Secondary rock typelimestone
Other rock types
Lithologic constituents
Major
Sedimentary > Carbonate > Dolostone (Bed)
Incidental
Sedimentary > Carbonate > Limestone (Bed)
Map references
Bureau of Economic Geology, 1992, Geologic Map of Texas: University of Texas at Austin, Virgil E. Barnes, project supervisor, Hartmann, B.M. and Scranton, D.F., cartography, scale 1:500,000
Unit references
Bureau of Economic Geology, 1968, Van Horn-El Paso Sheet, Geologic Atlas of Texas: Bureau of Economic Geology, The University of Texas at Austin, scale 1:250,000.
Geographic coverageCulberson

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URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=TXPt;0
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