Portland State University. Department of Geology
Richard E. Thoms
Date of Publication
Master of Science (M.S.) in Geology
Sediment transport -- Columbia River, Beach erosion -- Columbia River, Water waves, Puget Island Region (Wash.)
1 online resource (336 p.)
Water waves generated by wind and ships; ebb tidal currents; water level fluctuations; and dredging impact sediment transport in shallow water of the lower Columbia River. Observations were made over a one-year period after sand dredged from the navigation channel was placed at three study sites in the Puget Island region, 46°15'N 123°25'W, Oregon and Washington. Sediment composition is fine to medium grained, low density dacitic volcanics with small percentages of pumice, heavy minerals, and basalt.
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Abbe, Timothy, "Sediment dynamics on the shore slopes of the Puget Island reach of the Columbia River, Oregon and Washington" (1989). Dissertations and Theses. Paper 4306.