Portland State University. Department of Geology
Michael L. Cummings
Date of Publication
Master of Science (M.S.) in Geology
Volcanism -- Oregon -- Troy Region, Basalt -- Oregon -- Troy Region, Geology -- Oregon -- Troy Region
1 online resource (238 p.)
Explosion structures occur in flows of Grande Ronde Basalt in the study area near Troy, Oregon. Data from nineteen stratigraphic sites indicate that the maximum number of flows that contain explosion structures at any one site is six. In the informally named Troy flow, explosion structures are widespread.
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Orzol, Leonard Lee, "Explosion structures in Grande Ronde basalt of the Columbia Riverbasalt group, near Troy, Oregon" (1987). Dissertations and Theses. Paper 3750.