1. Mineral Resources
  2. Online Spatial Data
  3. Geology
  4. by state
  5. South Dakota

Belle Fourche Shale

XML
JSON
Shapefile
Dark-gray to black bentonitic shale containing minor limestone lenses, bentonite layers, fossiliferous calcarenite, and large, ferruginous, carbonate concretions. Thickness 150-350 ft (46-107 m).
State South Dakota
Name Belle Fourche Shale
Geologic age Late Cretaceous
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale > Black-shale (Bed)
Minor
Sedimentary > Clastic > Mudstone > Claystone > Bentonite (Bed)
Sedimentary > Carbonate > Limestone (Lens)
Sedimentary > Clastic > Sandstone > Arenite > Calcarenite (Bed)
References

Martin, J.E., Sawyer, J.F., Fahrenbach, M.D., Tomhave, D.W., and Schulz, L.D., 2004, Geologic Map of South Dakota: South Dakota Geological Survey, GM 10, scale 1:500,000.
NGMDB product
Counties Butte - Custer - Fall River - Lawrence - Meade - Pennington