Pierre Shale (SDKp;0)

Pierre Shale

Blue-gray to dark-gray, fissile to blocky shale with persistent beds of bentonite, black organic shale, and light-brown chalky shale. Contains minor sandstone, conglomerate, and abundant carbonate and ferruginous concretions. Thickness up to 1,000 ft (305 m).

State	South Dakota
Name	Pierre Shale
Geologic age	Upper Cretaceous
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > Claystone > Bentonite (Bed)Fissile to blocky shale with persistent beds of bentonite Sedimentary > Clastic > Mudstone > Shale (Bed)Blue-gray to dark-gray, fissile to blocky shale with persistent beds of bentonite, black organic shale, and light-brown chalky shale. Minor Sedimentary > Carbonate (Bed)Abundant carbonate and ferruginous concretions Sedimentary > Clastic > Sandstone (Bed) Sedimentary > Clastic > Conglomerate (Bed)
References	Tomhave, D.W., and Schulz, L.D., 2004, Bedrock Geologic Map Showing Configuration of the Bedrock Surface in South Dakota East of the Missouri River, South Dakota Geological Survey, GM 9, scale 1:500,000.
NGMDB product	NGMDB product page for 72317 NGMDB product page for 96370
Counties	Aurora - Beadle - Bon Homme - Brookings - Brown - Brule - Buffalo - Butte - Campbell - Charles Mix - Clark - Codington - Corson - Custer - Davison - Day - Deuel - Dewey - Douglas - Edmunds - Fall River - Faulk - Grant - Gregory - Haakon - Hamlin - Hand - Harding - Hughes - Hutchinson - Hyde - Jackson - Jerauld - Jones - Kingsbury - Lake - Lyman - McCook - McPherson - Marshall - Meade - Mellette - Miner - Moody - Pennington - Potter - Roberts - Sanborn - Shannon - Spink - Stanley - Sully - Todd - Tripp - Turner - Walworth - Yankton - Ziebach

Pierre Shale

Tomhave, D.W., and Schulz, L.D., 2004, Bedrock Geologic Map Showing Configuration of the Bedrock Surface in South Dakota East of the Missouri River, South Dakota Geological Survey, GM 9, scale 1:500,000.