Wills Point Formation (TXPNw;0)

State	Texas
Name	Wills Point Formation
Geologic age	Phanerozoic \| Cenozoic \| Tertiary \| Paleocene
Original map label	PAw
Comments	Mostly clay, sm., rough, white calcar. siltst. concretions common in upper part, in part silty and sandy, locally phosphatic near base, thin bed of rosette limestone in middle part, glauconitic near base, thin bedded to massive, various shades of gray, bluish gray, greenish gray, grayish green, brownish gray; weathers med. gray to yell-gray; thickness 500 ft +-
Primary rock type	clay or mud
Secondary rock type	limestone
Other rock types
Lithologic constituents	Major Unconsolidated > Fine-detrital > Clay (Bed) Incidental Sedimentary > Carbonate > Limestone (Bed)grades upward to mudstone and sand of Wilcox Group
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, 1966, Texarkana Sheet, Geologic Atlas of Texas, University of Texas, Bureau of Economic Geology, scale 1:250,000. Bureau of Economic Geology, 1972, Dallas sheet, Geologic Atlas of Texas, Bureau of Economic Geology, University of Texas at Austin, scale 1:250,000.
Geographic coverage	Delta - Falls - Freestone - Henderson - Hopkins - Hunt - Kaufman - Limestone - Navarro - Rains - Robertson - Van Zandt