|Geologic age||Late Cretaceous|
Sedimentary > Carbonate > Marlstone (Bed)
Sedimentary > Clastic > Mudstone (Bed)
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Sandstone (Calcareous)
|Comments||Fossiliferrous marl and marly clay, calcareous sandstone, sandy clay, sandy limestone, limestone and chalk. Approximatly 160 ft. thick. .Marl refers to loosley consolidated calcareous clays, silts and sands containing glauconite. Chalk= Limestone|
Dane, C.H.,1929, Upper Cretaceous formations of southwestern Arkansas: Arkansas Geol. Survey Bull.1, 215 pp.
|Counties||Clark - Hempstead - Nevada|