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

Sage Junction, Quealy, Cokeville, Thomas Fork, and Smiths Formations

XML
JSON
Shapefile
Sage Junction Formation - Gray and tan siltstone and sandstone. Quealy Formation - Variegated mudstone and tan sandstone. Cokeville Formation - Tan sandstone, claystone, limestone, bentonite, and coal. Thomas Form Formation - Variegated mudstone and gray sandstone. Smiths Formation - Ferruginous black shale and tan to brown sandstone.
State Wyoming
Name Sage Junction, Quealy, Cokeville, Thomas Fork, and Smiths Formations
Geologic age Lower Cretaceous
Lithologic constituents
Major
Sedimentary > Clastic > Siltstone
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Mudstone
Minor
Sedimentary > Carbonate > Limestone
Sedimentary > Clastic > Mudstone > Claystone
Sedimentary > Clastic > Mudstone > Shale > Black-shale
Incidental
Sedimentary > Clastic > Mudstone > Claystone > Bentonite
Sedimentary > Coal
References

Love, J.D. and Christiansen, A.C., 1985, Geologic Map of Wyoming: U.S. Geological Survey, scale 1:500,000.

https://pubs.er.usgs.gov/publication/70046739
NGMDB product
Counties Lincoln - Uinta