Portland State University. Department of Geology
Paul E. Hammond
Date of Award
Master of Science (M.S.) in Geology
1 online resource (174 p.)
Geology, Stratigraphic -- Tertiary, Geology -- Washington (State) -- Lewis County, Sediments (Geology) -- Washington (State) -- Lewis County
Over 1150 m of middle to late Eocene nonmarine arkose, lithic arkose, mudstone, and siltstone, referred to here as the Chambers Creek beds, are int~r.stratified with, and overlain by over 1600 m of late Eocene-Oligocsne(?) andesitic volcaniclastic and subordinate volcanic rocks assigned to the Ohanapecosh Formation, in a dissected structural high in the southern Washington Cascade Range, about 18 km south-southeast of the town of Packwood.
Winters, Warren Jon, "Stratigraphy and sedimentology of Paleogene arkosic and volcaniclastic strata, Johnson Creek-Chambers Creek area, southern Cascade Range, Washington" (1984). Dissertations and Theses. Paper 3446.