State | Oregon |
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Name | Subaqueous pyroclastic ejecta of basaltic and andesitic cinder cones |
Geologic age | Miocene to Holocene |
Lithologic constituents |
Major
Igneous > Volcanic > Mafic-volcanic > Basalt (Pyroclastic-cinder cone)
Minor
Igneous > Volcanic > Mafic-volcanic > Andesite (Pyroclastic-cinder cone)
|
References | Walker, G.W. and MacLeod, N.S., 1991, Geologic map of Oregon: U.S. Geological Survey, scale 1:500,000.Greene, R.C., Walker, G.W., and Corcoran, R.E., 1972, Geologic map of the Burns quadrangle, Oregon: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-680, scale 1:250,000.https://pubs.er.usgs.gov/publication/i680 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 Ferns, M.L. and Cummings, M.L., 1992, Geology and mineral resources map of The Elbow quadrangle, Malheur County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map Series GMS-62, scale 1:24,000.Ferns, M.L., 1992, Preliminary geologic map of the Jordan Craters South quadrangle, Malheur County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Map O-92-09, scale 1:24,000. |
NGMDB product | |
Counties | Deschutes - Harney - Klamath - Lake |