Nacatoch Sand (TXKns;0)

State	Texas
Name	Nacatoch Sand
Geologic age	Phanerozoic \| Mesozoic \| Cretaceous-Late [Gulfian]
Original map label	Kns
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).
Primary rock type	clay or mud
Secondary rock type	sand
Other rock types	sandstone
Lithologic constituents	Major Sedimentary > Clastic > Sandstone (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, 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.
Geographic coverage	Falls - Hunt - Kaufman - Limestone - Milam - Navarro - Rockwall