Biostratigraphy of the Cowlitz Formation in the upper Nehalem River Basin, northwest Oregon
Examination of stream and roadcut exposures of the Cowlitz Formation allows the selection of measured representative sections, and collection of fossils, from an area roughly defined by the intersection of the boundaries of Clatsop, Columbia, Tillamook and Washington counties in Oregon. The study de...
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Format: | Others |
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PDXScholar
1986
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Online Access: | https://pdxscholar.library.pdx.edu/open_access_etds/3654 https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=4663&context=open_access_etds |