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Simsboro Formation

Simsboro Formation
State Texas
Name Simsboro Formation
Geologic age Phanerozoic | Cenozoic | Tertiary | Paleocene
Comments Mostly sand, some mudstone, clay, and mudstone conglomerate. thickness as much as 300 ft.
Primary rock type sand
Secondary rock type mudstone
Other rock types
Lithologic constituents
Unconsolidated > Coarse-detrital > Sand (Bed)
Sedimentary > Clastic > Mudstone > Claystone (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, 1974, Austin Sheet, Geologic Atlas of Texas, University of Texas, Bureau of Economic Geology, scale 1:250,000.
Counties Bastrop - Falls - Freestone - Lee - Limestone - Milam - Robertson