Curtis Fm, Entrada Ss, and Carmel Fm

Curtis Fm, Entrada Ss, and Carmel Fm.
State Utah
Name Curtis Fm, Entrada Ss, and Carmel Fm
Geologic age Middle to Late Jurassic
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone > Arenite (Bed)
Minor
Sedimentary > Clastic > Mixed-clastic > Sandstone-mudstone (Bed)
Sedimentary > Carbonate > Limestone (Bed)
Incidental
Sedimentary > Chemical > Evaporite > Gypsum (Bed)
Comments In places, known as Curtis Member of Stump Formation. Shallow marine to restricted marine (Carmel), eolian (Entrada Sandstone), marine (Stump/Curtis)
Stratigraphic units Stump Formation
References

Hintze, L.F., 1980, Geologic map of Utah: Utah Geological and Mineral Survey, scale 1:500,000.

Hintze, L.F., 1988, Geologic History of Utah: Brigham Young University Geology Studies Special Publication 7, 202 p.

Rowley, P.D., Hansen, W.R., Tweto, O., and Carrara, P.E., 1985, Geologic map of the Vernal 1ø x 2ø quadrangle, Colorado, Utah, and Wyoming: U.S. Geological Survey Miscellaneous Investigations Series I-1526, scale 1:250,000.

https://pubs.er.usgs.gov/publication/i1526

Gregson, J.D., and Chure, D.J., 2000, Geology and Paleontology of Dinosaur National Monument, Utah-Colorado, in Sprinkel, D.A., Chidsey, Jr., T.C., and Anderson, P.B., Geology of Utah's Parks and Monuments: Utah Geological Association Publication 28, p. 155-188.

Chure, D.J., 1993, The first record of ichthyosaurs from Utah: Brigham Young University Geology Studies 39, p. 65-69.

NGMDB product
Counties Daggett - Duchesne - Uintah - Wasatch