Portland State University. Department of Earth Sciences
Robert O. Van Atta
Date of Publication
Master of Science (M.S.) in Geology
Stratigraphy, Structural geology, Cenozoic, Cowlitz formation
1 online resource (131 p.)
The upper Nehalem River-Wolf Creek area is located on the northeastern flank of the Tillamook Highlands in the northern Oregon Coast Range. Three rock stratigraphic units underlie the thesis area, and these units range from late Eocene to Oligocene in age.
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Jackson, Michael Keith, "Stratigraphic relationships of the Tillamook Volcanics and the Cowlitz Formation in the upper Nehalem River-Wolf Creek area, northwestern Oregon" (1983). Dissertations and Theses. Paper 3274.