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Nonmarine sedimentary rocks (Eocene)

Continentally derived conglomerate, pebble conglomerate, sandstone, siltstone, and mudstone containing abundant biotite and muscovite. Dominantly nonvolcanic; clastic material derived from underlying older rocks
StateOregon
NameNonmarine sedimentary rocks (Eocene)
Geologic ageEocene
Original map labelTn
Primary rock typeconglomerate
Secondary rock typesandstone
Other rock typessiltstone; mudstone
Lithologic constituents
Major
Sedimentary > Clastic > Conglomerate (Bed)
Minor
Sedimentary > Clastic > Siltstone (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Incidental
Sedimentary > Clastic > Mudstone (Bed)
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.
Geographic coverageJackson

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