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Earthquake geology of the Portland area, Oregon / H. G. Schlicker, R. J. Deacon, and N. H. Twelker -- Tsunamis on the Oregon coast / Clifford E. Schatz, Herbert Curl, Jr., and Wayne V. Burt.
Fossil woods supplement knowledge of the Succor Creek fossil flora / Wallace Eubanks -- Broken Top breaks : flood released by erosion of glacial moraine / Bruce Nolf.