| State | Texas |
|---|---|
| Name | Tahoka Formation |
| Geologic age | Pleistocene; Wisconsinan |
| Lithologic constituents |
Major
Unconsolidated > Coarse-detrital > Sand (Bed)
Unconsolidated > Fine-detrital (Bed)
Minor
Unconsolidated > Coarse-detrital > Gravel (Bed)
Incidental
Sedimentary > Carbonate > Dolostone (Bed)
|
| Comments | Lacustrine clay, silt, sand, and gravel, coarser toward margins of deposits, locally calcareous, selenitic. Local thin dolostone beds. Clay and silt, sandy, indistinctly bedded to massive weakly coherent,various shades of lt.-gray and bluish-gray. Sand, fine- to coarse-grained quartz, indistinctly bedded to massive, friable, gray, grades to gravel at margins. Molluscan and vertebrate fossils. Thickness 25 ft. |
| Stratigraphic units | Vigo Dolomite, Rich Lake Dolomite |
| References | Bureau of Economic Geology, 1977, Clovis Sheet, Geologic Atlas of Texas, Bureau of Economic Geology, University of Texas at Austin, scale 1:250,000.Bureau of Economic Geology, 1983, Lubbock Sheet, Geologic Atlas of Texas: University of Texas at Austin, Bureau of Economic Geology, scale 1:250,000.Bureau of Economic Geology, 1976, Hobbs Sheet, Geologic Atlas of Texas: University of Texas at Austin, Bureau of Economic Geology, scale 1:250,000.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. |
| NGMDB product | |
| Counties | Andrews - Bailey - Cochran - Crane - Dawson - Gaines - Garza - Glasscock - Hockley - Howard - Lamb - Lynn - Martin - Midland - Pecos - Reagan - Reeves - Scurry - Terry - Upton - Ward |