| State | Texas |
|---|---|
| Name | Nacatoch Sand |
| Geologic age | Late Cretaceous; Gulfian Series |
| Lithologic constituents | Major
Sedimentary > Clastic > Sandstone (Bed)
|
| Comments | quartz sand, fine grained, poorly sorted, friable, silty, glauconitic, local lenses of silty clay, compact, lt. gray to greenish-gray; thin calcar. sandst. beds; marine megafossils. Thickness 250+-ft. mapped on Dallas Sheet (1972). |
| References | Bureau of Economic Geology, 1972, Dallas sheet, Geologic Atlas of Texas, Bureau of Economic Geology, University of Texas at Austin, scale 1:250,000.Bureau of Economic Geology, 1967, Sherman 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 | Falls - Hunt - Kaufman - Limestone - Milam - Navarro - Rockwall |