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Rhyolite flows and ignimbrites; Late Pleistocene felsic volcanics of subunit 3f; Yellowstone Plateau

Upper Pleistocene silicic volcanic unit 3 in eastern Idaho.
StateIdaho
NameRhyolite flows and ignimbrites; Late Pleistocene felsic volcanics of subunit 3f; Yellowstone Plateau
Geologic ageLate Pleistocene
Original map labelQpu3f
CommentsQpu3f corresponds to Plateau Rhyolite, Central Plateau Member, Buffalo Lake Rhyolite flow (0.15 Ma). It is described as a rhyolite flow in ID123, but as a rhyolitic ash-flow tuff on map ID100. It erupted during the third eruptive cycle of the Yellowstone Plateau volcanic field, from the Yellowstone caldera (ID123).
Primary rock typerhyolite
Secondary rock typeignimbrite
Other rock typeslava flow
Lithologic constituents
Major
Igneous > Volcanic > Felsic-volcanic > Rhyolite (Flow)West Yellowstone flow, Summit Lake flow
Minor
Igneous > Volcanic > Felsic-volcanic > Rhyolite (Pyroclastic, ash-flow)Buffalo Lake ash-flow tuff
Map references
Bond, J.G., Kauffman, J.D., Miller, D.A., and Venkatakrishnan, Ramesh, 1978, Geologic map of Idaho: Moscow, Idaho, Idaho Bureau of Mines and Geology, with contributions from U.S. Geological Survey, scale 1:500,000.
Unit references
Bond, J.G., Kauffman, J.D., Miller, D.A., and Venkatakrishnan, Ramesh, 1978, Geologic map of Idaho: Moscow, Idaho, Idaho Bureau of Mines and Geology, with contributions from U.S. Geological Survey, scale 1:500,000.
O'Neill, J.M, and Christiansen, R.L., 2002, Geologic map of the Hebgen Lake quadrangle, Beaverhead, Madison, and Gallatin Counties, Montana, Park and Teton Counties, Wyoming, and Clark and Fremont Counties, Idaho: U.S. Geological survey Open-File Report 02-464, 1:100,000 scale with pamphlet, 20 p.
Mitchell, V.E.., and Bennett, E.H., 1979, Geologic map of the Ashton quadrangle, Idaho: Moscow, Idaho, Idaho Bureau of Mines and Geology, Geologic Map Series, Ashton 2o Quadrangle, scale 1:250,000.
Geographic coverageFremont

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