Portland State University. Department of Geology
Marvin H. Beeson
Date of Publication
Master of Science (M.S.) in Geology
Geology -- Washington (State) -- Horse Heaven Hills
1 online resource (222 p.)
The Horse Heaven Hills uplift in south-central Washington consists of distinct northwest and northeast trends which merge in the lower Yakima Valley. The northwest trend is adjacent to and parallels the Rattlesnake-Wallula alignment (RAW; a part of the Olympic-Wallowa lineament). The northwest trend and northeast trend consist of aligned or en echelon anticlines and monoclines whose axes are generally oriented in the direction of the trend. At the intersection, folds in the northeast trend plunge onto and are terminated by folds of the northwest trend.
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Hagood, Michael Curtis, "Structure and evolution of the Horse Heaven Hills in south-central Washington" (1985). Dissertations and Theses. Paper 3600.