1. Mineral Resources
  2. Online Spatial Data
  3. Geology
  4. by state
  5. Oregon

Sedimentary and volcanic rocks, partly metamorphosed

XML
JSON
Shapefile
Undifferentiated sedimentary and volcanic rocks some of which are highly deformed and locally metamorphosed to amphibolite and schist. Occurs mostly in Strawberry and Aldrich Mountains of the Blue Mountains province. Includes undivided Paleozoic rocks and Paleozoic volcanic rocks of Brown and Thayer (1966) and Dixie Butte Meta-andesite of Brooks and others (1984)
State Oregon
Name Sedimentary and volcanic rocks, partly metamorphosed
Geologic age Paleozoic
Lithologic constituents
Major
Sedimentary > Clastic > Mixed-clastic (Bed)No lithologies provided
Igneous > Volcanic (Flow)No lithologies provided
Minor
Metamorphic > Metasedimentary (Greenschist)
Metamorphic > Amphibolite (Amphibolite)
Metamorphic > Metaigneous > Greenstone (Greenschist)Includes Dixie Butte Meta-andesite (OR092)
Comments The southwest quarter of the Bates 15' quadrangle (OR092) was renamed ""Dixie Butte"" quadrangle.
Stratigraphic units Dixie Butte Meta-andesite
References

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

Brown, C.E. and Thayer, T.P., 1966, Geologic map of the Canyon City quadrangle, northeastern Oregon: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-447, scale 1:250,000.

https://pubs.er.usgs.gov/publication/i447

Walker, G.W., 1977, Geologic map of Oregon east of the 121st meridian: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-902, scale 1:500,000.

https://pubs.er.usgs.gov/publication/i902

Brooks, H.C., Ferns, M.L., and Avery, D.C., 1984, Geology and gold deposits map of the southwest quarter of the Bates quadrangle, Grant County, Oregon: Oregon: Oregon Department of Geology and Mineral Industries Geological Map Series GMS-35, scale 1:24,000-Department of Geology and Mineral Industries Geologic Map Series GMS-35, scale 1:24,000.

Brooks, H.C., Ferns, M.L., and Avery, D.G., 1984, Geology and gold deposits of the southwest quarter of the Bates quadrangle, Grant County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map Series GMS-35, scale 1:24,000.

Ferns, M.L., Brooks, H.C., and Wheeler, G.R., 1984, Geology and gold deposits of the Bates quadrangle, Grant County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map Series GMS-31, scale 1:24,000.

Thayer, T.P., Brown, C.E., and Hay, R.I., 1967, Preliminary geologic map of the Prairie City quadrangle, Grant County, Oregon: U.S. Geological Survey Open-File Map, scale 1:62,500.

https://pubs.er.usgs.gov/publication/ofr67214
NGMDB product
Counties Grant - Wheeler