First Advisor

Marvin H. Beeson

Date of Publication


Document Type


Degree Name

Master of Science (M.S.) in Geology


Earth Science




Basalt -- Oregon -- Hood River Valley, Geology -- Oregon -- Hood River Valley



Physical Description

1 online resource (70 p.)


The Hood River Valley, located 100 kilometers east of Portland, Oregon, is in the transition zone between two geologic provinces--the High Cascades and the Columbia Plateau. The entire valley is probably underlain by Columbia River Basalt, but it crops out only on steep hillsides and in stream valleys. The base of the basalt is not exposed in the thesis area. The basalt is overlain by Pliocene and Quaternary basalt and andesite, volcanic sediments and glacial debris.

The stratigraphy of the Columbia River Basalt is useful in determining the path of the basalt flows into western Oregon, in mapping the structure and in reconstructing the tectonic development of the northern Oregon Cascades.


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This thesis includes two supplemental files available to download.

Persistent Identifier

Geological Map of the Bull Woods Area.pdf (6775 kB)
Geologic Map

Figure 12_ E-W Cross-Section Through Middle Mountain.pdf (44132 kB)
Cross-section through Middle Mountain