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Dune sand (Holocene)

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Large areas of windblown sand composed of rock-forming minerals, mostly feldspar and small amounts of quartz, and, in southeastern Oregon, also pumice
State Oregon
Name Dune sand (Holocene)
Geologic age Holocene
Comments Eolian deposits not included in State map in La Grande area, but mapped in OR291, where it contains 0.5-1-m-thick accumulations of Mazama Aas (6.7 ka). Eolian deposits also mapped in the Hermiston area, northwestern Umatilla River Basin (OR292) near Columbia River
Primary rock type sand
Secondary rock type
Other rock types
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone (Bed)
Incidental
Sedimentary > Clastic (Bed)Pumice
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.
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.
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.
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.
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.
Rytuba, J.J., Vander Meulen, D.B., Vercoutere, T.L., and Minor, S.A., 1982b, Reconnaissance geologic map of the Borax Lake quadrangle, Harney County, Oregon: U.S. Geological Survey Open-File Report 82-1126, scale 1:24,000.
Evans, J.G., unpub. mapping, 1994, Fields quadrangle, Harney County
Minor, S.A., Rytuba, J.J., and Vercoutere, T.L., 1989, Geologic map of the Windy Point quadrangle, Harney County, Oregon: U.S. Geological Survey Open File Report 89-212, scale 1:24,000.
Ferns, M.L., Madin, I.P., and Taubeneck, W.H., 2001, Reconnaissance geologic map of the La Grande 30' x 60' quadrangle, Baker, Grant, Umatilla, and Union Counties, Oregon: Oregon Department of Geology and Mineral Industries Reconnaissance Map Series RMS-1, 52 p., scale 1:100,000.
Ferns, M.L., McConnell, V.S., and Madin, I.P., in prep., Geology of the Umatilla River Basin, Morrow, Umatilla, and Union Counties, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report, 66 p., scale 1:100,000.
Counties Clatsop - Coos - Curry - Deschutes - Douglas - Harney - Lake - Lane - Lincoln - Malheur