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Date Permissions Signed
Date of Award
Master of Science (MS)
Swineford, Ada, 1917-
Easterbrook, Don J., 1935-
Pevear, David R.
Pleistocene clay-bearing sediments of parts of northwestern Washington and southwestern British Coliambia were studied in an attempt to determine the clay mineral composition of these units; the origin of these clay minerals; and any correlation between clay mineral composition, sediment type, location, or probable geologic history of the sediments. The Pleistocene stratigraphy of the area is fairly well known, although in some specific locations the stratigraphy has not been determined. Recorded work in the region dates back to Dawson (1887). The units studied range in age from the greater than 50,000 year old Double Bluff Drift to Holocene (Recent) river sediments. The units are composed of silt, clay, peat, gravel, sand, till and glacio- marine drift.
Western Washington University
Washington (State); British Columbia
Copying of this thesis in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this thesis for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.
Hepp, Michael Arthur, "Clay mineralogy of late Pleistocene sequences in northwestern Washington and southwestern British Columbia" (1972). WWU Graduate School Collection. 633.