Volcanic rocks of the Dothan Formation and related rocks (Lower Cretaceous and Upper Jurassic) (ORKJdv;0)

State	Oregon
Name	Volcanic rocks of the Dothan Formation and related rocks (Lower Cretaceous and Upper Jurassic)
Geologic age	Late Jurassic to Early Cretaceous
Original map label	KJdv
Comments	Considered part of the Yolla Bolly Terrane by Blake and others (1985), which includes part of the Franciscan Complex in California.
Primary rock type	basalt
Secondary rock type
Other rock types
Lithologic constituents	Major Igneous > Volcanic > Mafic-volcanic > Basalt (Volcaniclastic, volcanic breccia) Igneous > Volcanic > Mafic-volcanic > Basalt (Flow, pillows)
Map references	Walker, G.W. and MacLeod, N.S., 1991, Geologic map of Oregon: U.S. Geological Survey, scale 1:500,000.
Unit references	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. [http://pubs.er.usgs.gov/publication/b1972] 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. Irwin, W.P., 1994, Geologic map of the Klamath Mountains, California and Oregon: U.S. Geological Survey Miscellaneous Investigations Series Map I-2148, scale 1:500,000. [http://pubs.er.usgs.gov/publication/i2148] Smith, J.G., Page, N.J, Johnson, M.G., Moring, B.C., and Gray, F., 1982, Preliminary geologic map of the Medford 1ø by 2ø quadrangle, Oregon and California: U.S. Geological Survey Open-File Report 82-955, scale 1:250,000. [http://pubs.er.usgs.gov/publication/ofr82955]
Geographic coverage	Curry - Douglas - Josephine