| State | Oregon |
|---|---|
| Name | Columbia River Basalt Group and related flows |
| Geologic age | Miocene |
| Lithologic constituents |
Major
Igneous > Volcanic > Mafic-volcanic > Basalt (Flow-pillows, Pyroclastic)Minor andesite
Minor
Sedimentary > Clastic > Mixed-clastic > Sandstone-mudstone (Bed)
Igneous > Volcanic > Mafic-volcanic > Andesite (Flow)
|
| Stratigraphic units | Tcs, Saddle Mountains Basal; Tcw, Wanapum Basalt; Tcg, Grande Ronde Basalt; Tcp, Picture Gorge Basalt; Tci, Imnaha Basalt |
| 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 Prostka, H.J., 1962, Geology of the Sparta quadrangle, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map Series GMS-1, scale 1:62,500.Swanson, D.A., Wright, T.L., Hooper, P.R., and Bentley, R.D., 1979, Revisions in stratigraphic nomenclatire of the Columbia River Basalt Group: U.S. Geological Survey Bulletin1457-G, p. G1-G59.https://pubs.er.usgs.gov/publication/b1457G Brooks, H.C., McIntyre, J.R., and Walker, G.W., 1976, Geology of the Oregon part of the Baker 1o by 2o quadrangle: Oregon Department of Geology and Mineral Industries Geologic Map Series GMS-7, scale 1:250,000.Walker, G.W., 1979, Reconnaissance geologic map of the Oregon part of the Grangeville quadrangle, Baker, Union, Umatilla, and Wallowa Counties, Oregon: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-1116, scale 1;250,000.https://pubs.er.usgs.gov/publication/i1116 McKee, E.H., Swanson, D.A., and Wright, T.L., 1977, Duration and volume of Columbia River basalt volcanism, Washington, Oregon, and Idaho [abs.]: Geological Society of America Abstracts with Programs, v. 9, no. 4, p. 463.Sutter, J.F., 1978, K-Ar ages of Cenozoic volcanic rocks from the Oregon Cascades west of 121o 30': Isochron/West, no. 21, p. 15-21.Lux, D.R., 1982, K-Ar and 40Ar/39Ar ages of mid-Tertiary volcanic rocks from the Western Cascade Range, Oregon: Isochron/West, no. 33, p. 27-32.Swanson, D.A., Anderson, J.L., Camp, V.E., Hooper, P.R., Taubeneck, W.H., and Wright, T.L., 1981, Reconnaissance geologic map of the Columbia River Basalt Group, northen Oregon and western Idaho: U.S. Geological Survey Open-File Report 81-797, 33 p., scale 1:250,000.https://pubs.er.usgs.gov/publication/ofr81797 Wolff, E.N., 1965, The geology of the northern half of the Caviness quadrangle, Oregon: Eugene, University of Oregon, Ph.D. dissertation, 214 p.Brooks, H.C. and McIntyre, J.R., 1977, Preliminary geologic map of the Bowen Valley quadsrangle, Baker County, Oregon: Oregon Department of Geology and Mineral Industries, scale 1:24,000.Evans, J.G., Geologic map of the Dooley Mountain quadrangle, Baker County, Oregon: U.S. Geological Survey Geological Quadrangle GQ-1694, scale 1: 24,000.https://pubs.er.usgs.gov/publication/gq1694 Brooks, H.C., Ferns, M.L., Coward, R.I., Paul, E.K., and Nunlist, M., 1982, Geology and gold deposits map of the Bourne quadrangle, Baker and Grant Counties, Oregon: Oregon Department of Geology and Mineral Industries Geological Map Series GMS-19, scale 1:24,000.Swisher, C.C., Ach, J.A., and Hart, W.K., 1990, Laser fusion 40Ar/39Ar dating of the type Steens Mountain Basalt, southeastern Oregon, and the age of the Steens aeromagnetic polarity transition [abs.]: EOS, Transactions of American Geophysical Union, v. 17, no. 43, p. 1,296.Brooks, H.C., 1979, Geologic map of the Oregon part of the Mineral quadrangle: Oregon Department of Geology and Mineral Industries Geological Map Series GMS-12, scale 1:62,500.Evans, J.G., Geologic map of the Beaverdam Creek quadrangle, Baker County, Oregon: U.S. Geological Survey Miscellaneous Field Studies Map MF-2299, scale 1:24,000.https://pubs.er.usgs.gov/publication/mf2299 Evans, J.G., 1993, Geologic map of the Brannan Gulch quadrangle, Baker County, Oregon: U.S. Geological Survey Geological Quadrangle GQ-1744, scale 1:24,000.https://pubs.er.usgs.gov/publication/gq1744 Prostka, H.J., 1968, Geologic map of the Ironside 15' quad, Oregon: Oregon Department of Geology and Mineral Industries, scale 1:62,500.Whitsun, N.W., 1988, Geochemical stratigraphy of the Dooley Rhyolite Breccia and Tertiary basalts in the Dooley Mountain quadrangle, Oregon: Portland, Oregon, Portland State University, master's thesis, 122 p.Beeson, J.H., Geology of the southern half of the Huntington quadrangle, Oregon: Eugene, University of Oregon, master's thesis, 77 p.Berry, N.J., 1956, Geology of the northeast quarter of the Huntington quadrangle, Oregon: Eugene, University of Oregon, master's thesis, 78 p.Calkins, J.A., 1954, The geology of the northeastern quarter of the Jamieson quadrangle, Oregon: Eugene, University of Oregon, master's thesis, 72 p.Ferns, M.L. and Madin, I.P., 1999, Geologic map of the Summerville quadrangle, Union County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map Series GMS-111, scale 1:24,000.Weiss, P.L., Gualtieri,, J.L., Cannon, W.F., Tucher, E.T., McMahan, A.B., and Federspiel, F.E., 1976, Mineral resources of the Eagle Cap Wilderness and adjacent areas, Oregon: U.S. Geological Survey Bulletin 1385-E, 100 p.https://pubs.er.usgs.gov/publication/b1385E Waters, A.C., 1968, Reconnaissance geologic map of the Madras quadrangle, Jeffereson and Wasco Counties, Oregon" U.S. Geological Survey Miscellaneous Geological Investigations Map I-555, scale 1;125,000.https://pubs.er.usgs.gov/publication/i555 |
| NGMDB product | |
| Counties | Baker - Clackamas - Clatsop - Columbia - Crook - Gilliam - Grant - Harney - Hood River - Jackson - Jefferson - Lake - Lane - Lincoln - Linn - Malheur - Marion - Multnomah - Polk - Sherman - Tillamook - Union - Wallowa - Wasco - Washington - Wheeler - Yamhill |