Otter Point Formation of Dott (1971) and related rocks (ORJop;0)

State	Oregon
Name	Otter Point Formation of Dott (1971) and related rocks
Geologic age	Late Jurassic
Lithologic constituents	Major Sedimentary > Clastic > Sandstone > Graywacke (Bed)Graywacke contains abundant volcanic detritus Sedimentary > Clastic > Mudstone (Bed) Minor Sedimentary > Clastic > Conglomerate Incidental Sedimentary > Carbonate > Limestone Metamorphic > Metaigneous > Serpentinite Metamorphic > Schist (Glaucophane-schist) Metamorphic > Metaigneous > Greenstone Sedimentary > Chemical > Chert
Comments	Considered part of the Gold Beach Terrane by Blake and others (1985).
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. https://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. Dott, R.H., Jr., 1971, Geology of the southwestern Oregon coast west of the 124th meridian: Oregon Department of Geology and Mineral Industries Bulletin 69, 63 p. Koch, J.G., 1966, Late Mesozoic stratigraphy and teconic history, Port Orford-Gold Beach area, southwestern Oregon coast: American Association of Petroleum Geologists Bulletin, v. 50, p. 25-71.
NGMDB product	NGMDB product page for 16259
Counties	Coos - Curry - Douglas

State

Oregon

Name

Otter Point Formation of Dott (1971) and related rocks

Geologic age

Late Jurassic

Lithologic constituents

Major

Sedimentary > Clastic > Sandstone > Graywacke (Bed)Graywacke contains abundant volcanic detritus

Sedimentary > Clastic > Mudstone (Bed)

Minor

Sedimentary > Clastic > Conglomerate

Incidental

Sedimentary > Carbonate > Limestone

Metamorphic > Metaigneous > Serpentinite

Metamorphic > Schist (Glaucophane-schist)

Metamorphic > Metaigneous > Greenstone

Sedimentary > Chemical > Chert

Comments

Considered part of the Gold Beach Terrane by Blake and others (1985).

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.

https://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.

Dott, R.H., Jr., 1971, Geology of the southwestern Oregon coast west of the 124th meridian: Oregon Department of Geology and Mineral Industries Bulletin 69, 63 p.

Koch, J.G., 1966, Late Mesozoic stratigraphy and teconic history, Port Orford-Gold Beach area, southwestern Oregon coast: American Association of Petroleum Geologists Bulletin, v. 50, p. 25-71.

NGMDB product

NGMDB product page for 16259

Counties

Coos - Curry - Douglas