Oil Creek and Joins Formation

ARDMORE-SHERMAN- Limestone, gray to tan, granular, with greenish-gray shale and brown fine- to medium-grained sandstone; thickness, 600 to 1,100 feet, decreasing eastward. (Simpson Group) Occurs in the ARBUCKLE MTNS.
State Oklahoma
Name Oil Creek and Joins Formation
Geologic age Middle Ordovician
Lithologic constituents
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
NGMDB product
Counties Carter - Coal - Johnston - Murray - Pontotoc