Olbinski_James_S_1983_Plate3.jpg
Six Tertiary rock units are exposed in the Buster Creek-Nehalem Valley area. They are, from oldest to youngest: upper Eocene Tillamook Volcanics; upper Eocene Cowlitz Formation; upper Eocene Keasey Formation; upper Eocene Vesper Church formation (informal); upper Eocene to Oligocene Pittsburg Bluff...
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| Online Access: | http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/r781wm17k |