Frontier Formation

Frontier Formation - includes the following members: Upton Ss, Judd Sh, Grass Creek, Dry Hollow, Oyster Ridge Ss, Allen Hollow, Shale Member, Coalville Member, Chalk Creek, Springs Canyon, and Longwall Ss.
State Utah
Name Frontier Formation
Geologic age Late Cretaceous
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
Incidental
Sedimentary > Clastic > Conglomerate (Bed)
Comments fluvial and coastal to offshore marine
References

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

Franczyk, K.J., Fouch, T.D., Johnson, R.C., Molenaar, C.M., and Cobban, W.A., 1992, Cretaceous and Tertiary paleogeographic reconstructions for the Uinta-Piceance Basin study area, Colorado and Utah: U.S. Geological Survey Bulletin 1787-Q, 37 p.

https://pubs.er.usgs.gov/publication/b1787Q

Ryer, T.A., 1990, The Cretaceous section at Coalville, Utah: America Association of Petroleum Geologists, v. 74, no. 8, p. 1,344.

NGMDB product
Counties Cache - Davis - Morgan - Salt Lake - Summit - Weber