|Geologic age||Late Cretaceous|
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Clastic > Mudstone (Bed)
Sedimentary > Carbonate > Marlstone (Bed)
Sedimentary > Carbonate > Limestone (Bed)
|Comments||Unconsolidated quartz sand, fossiliferous sandy limestone, glauconitic sand, argillaceous sand, clay and marl. Approximatly 400 ft. thick. Marl refers to loosley consolidated calcareous clays, silts and sands containing glauconite|
Dane, C.H.,1929, Upper Cretaceous formations of southwestern Arkansas: Arkansas Geol. Survey Bull.1, 215 pp.
|Counties||Clark - Hempstead - Howard - Nevada|