Structures in the Columbia River Basalts associated
with the Olympic-Wallowa Lineament and Hite Fault

Poster presentation given at the
1996 Cordilleran Section Meeting
of the Geological Society of America

KUEHN, Stephen C., HOOPER, Peter R., THIESSEN, Richard L., WATKINSON, A.John, Department of Geology, Washington State University, Pullman, WA 99164-2812

Complete text and figures of M.S. thesis from which this poster was derived

Sample location maps


Panel 1

On a broad scale, structures of the Columbia Plateau occur in a region that is influenced tectonically by oblique subduction and by right-lateral shear between the Pacific and North American plates. The region is characterized by northward-decreasing Basin and Range style extension which implies right-lateral shear on northwest trending structures.


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Geologic Maps 1 - 4

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Copyright © 1995-1997 Stephen C. Kuehn