| State | Texas |
|---|---|
| Name | Tule Formation |
| Geologic age | Pleistocene |
| Lithologic constituents |
Major
Unconsolidated > Coarse-detrital > Sand (Bed)
Minor
Unconsolidated > Fine-detrital > Silt (Bed)
Incidental
Unconsolidated > Fine-detrital > Clay (Bed)
|
| Comments | Sand, fine- to med-grained quartz, silty in part, some caliche nodules, thinbedded to massive, white, gray, brownish gray, grayish red. Silt and clay, locally bentonitic, indistinctly bedded, lt. gray, olive gray, greenish gray; weathers white, lt. gray, pink. Molluscan and vertebrate fossils. Thickness 85 ft. feathers out laterally. |
| References | 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, 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 | Briscoe - Garza - Lynn - Swisher |