Sedimentary rocks of Dothan Formation and related rocks

Sandstone, conglomerate, graywacke, rhythmically banded chert lenses. Includes western Dothan and Otter Point Formations of M.C. Blake, Jr. and AS. Jayko (unpublished data, 1985) in Curry and southern Coos Counties
State Oregon
Name Sedimentary rocks of Dothan Formation and related rocks
Geologic age Late Jurassic to Early Cretaceous
Lithologic constituents
Sedimentary > Clastic > Sandstone > Graywacke (Bed)turbidite facies
Sedimentary > Clastic > Mudstone (Bed)
Sedimentary > Chemical > Chert (Bed)
Sedimentary > Clastic > Conglomerate (Bed)
Comments Considered part of the Yolla Bolly Terrane by Blake and others (1985)

Walker, G.W. and MacLeod, N.S., 1991, Geologic map of Oregon: U.S. Geological Survey, scale 1:500,000.

Coleman, R.G., 1972, The Colebrooke Schist of southwestern Oregon and its relation to the tectonic evolution of the region: U.S. Geological Survey Bulletin 1972, 61 p.

Blake, M.C., Jr., Engebretson, D.C., Jayko, A.S., and Jones, D.L., 1985, Tectonostratigraphic terranes in southwest Oregon, in Howell, D.G., ed., Tectonostratigraphic terranes of the circum-Pacific region: Circum-Pacific Council for Energy and Mineral Resources Earth Science Series, v. 1, p. 147-158.

NGMDB product
Counties Coos - Curry - Douglas - Josephine