Wapanucka Formation and Chickachoc Chert

ARDMORE-SHERMAN- Limestone, gray to brown, spicular, granular to oolitic; alternates with gray shale and calcareous sandstone; thickness, 270 to 720 feet. Chert content increases southeastward. Occurs in the OUACHITA MTNS. McALESTER TEXARKANA- Limestone, gray to brown, oolitic to granular, with sponge-spicular chert in middle 50 to 114 feet with overlying and underlying calcareous sandstones and shales; thickness, 600 to 700 feet, pinching out in subsurface near Ti Valley Fault. Occurs in the OUACHITA MTNS, NORTH OF TI VALLEY FAULT.
State Oklahoma
Name Wapanucka Formation and Chickachoc Chert
Geologic age Early Pennsylvanian
Lithologic constituents
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Chemical > Chert (Bed)
Comments Chickachoc Chert: First used as a chert lentil in the lower part of Atoka formation. Area of report is Coalgate quad, Coal Co, OK, Arkoma basin, where Chickachoc occurs in southeast corner of quad. Is about 80 ft thick and composed of stratified, yet massive, calcareous and cherty sandstone. (Taff, 1901).
NGMDB product
Counties Atoka - Latimer - Pittsburg