The structure and stratigraphy of the Columbia River basalt in the Chehalem Mountains, Oregon
The Chehalem Mountains area, encompassing 70 square kilometers, is at the western extent of the Columbia River Basalt Group as mapped in western Oregon. The flows in the study area were identified as belonging to subdivisions of the Columbia River Basalt Group on the basis of physical characteristic...
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Format: | Others |
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PDXScholar
1980
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Online Access: | https://pdxscholar.library.pdx.edu/open_access_etds/3200 https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=4208&context=open_access_etds |