Savanna and McAlester Formations

FORT SMITH- IPsm "Savanna" and "McAlester Formations" (undifferentiated; T. 15 N., Rs. 18, 19 E.), shale and minor sandstones.
State Oklahoma
Name Savanna and McAlester Formations
Geologic age Middle Pennsylvanian
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Incidental
Sedimentary > Coal (Bed)
References
NGMDB product
Counties Muskogee