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Granite and diorite (Jurassic and Triassic)

Felsic to intermediate, granitoid intrusive rocks. Includes Jurassic muscovite granodiorite, hornblende gabbro, tonalite, and quartz diorite of southwest Oregon (Smith and others, 1982)
State Oregon
Name Granite and diorite (Jurassic and Triassic)
Geologic age Triassic to Jurassic
Primary rock type granite
Secondary rock type quartz diorite
Other rock types
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Granite (Pluton)Includes albite granite (OR035; OR103), hornblende quartz diorite (OR029), metamorphosed intrusive rocks (OR081); Oxbow Complex (OR104; OR105); and felsic phases of Canyon Mountain Complex (OR008; OR078)
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.
Walker, G.W. and Repenning, C.A., 1965, Geologic map of Adel quadrangle, Lake, Harney, and Malheur Counties, Oregon: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-446, scale 1:250,000.
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.
Dickinson, W.R. and Vigrass, L.W., 1965, Geology of the Suplee-Izee area, Crook, Grant, and Harney Counties, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 58, 109 p.
Gilluly, James, 1937, Geology and mineral resources of the Baker quadrangle, Oregon: U.S. Geological Survey Bulletin 879, 199 p.
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
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.
Wilkinson, W.D. and Oles, K.F., 1968, Stratigraphy and paleoenvironments of the Cretaceous rocks, Mitchell quadrangle, Oregon: American Association of Petroleum Geologists Bulletin, v. 52, p. 129-161.
Robinson, P.T., 1975, Reconnaissance geologic map of the John Day Formation in the southwestern part of the Blue Mountains and adjacent areas, north-central Oregon: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-872, scale 1:125,000.
Thayer, T.P., 1963, The Canyon Mountain complex, Oregon, and the alpine mafic magma stem: U.S. Geological Survey Professional Paper 475-C, p. C82-C85.
Ashley, R.P., 1967, Metamorphic petrology and structure of the Burnt River Canyon area, northeastern Oregon: Stanford, California, Stanford University, Ph.D. dissertation, 236 p.
Gilluly, James, 1933, Replacement origin of the albite granite near Sparta, Oregon: U.S. Geological Survey Professional Paper 175-C, p. C65-C81.
Vallier, T.L., 1967a, The geology of part of the Snake River Canyon and adjacent areas in northeastern Oregon and western Idaho: Corvallis, Oregon State University, Ph.D. dissertation, 297 p.
Vallier, T.L., 1967b, The geology of part of the Snake River Canyon and adjacent areas: Geology, Dissertation Abstracts, v. 28, no. 4, p. 1585-B.
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.
Roback, R.C., Vander Meulen, D.B., King, H.D., Plouff, Donald, Munts, S.R., and Willett, S.L., 1987, Mineral resources of the Pueblo Mountains Wilderness Study Area, Harney County, Oregon, and Humboldt County, Nevada: U.S. Geological Survey Bulletin 1740-B, 30 p.
Counties Baker - Grant - Harney - Wallowa