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Friday Night Lecture — Jason McClaughry: New Findings in the Middle Columbia Basin

  • Cramer Hall, Portland State University 1721 Southwest Broadway Portland, OR, 97201 United States (map)
 Jason in the Middle Columbia Basin looking northeast across the Columbia River to the Bingen anticline, which is underlain by a thick section of Columbia River Basalt.

Jason in the Middle Columbia Basin looking northeast across the Columbia River to the Bingen anticline, which is underlain by a thick section of Columbia River Basalt.

Jason McClaughry, Eastern Oregon Regional Geologist, Earth Science Section Supervisor, and statewide geologic mapping program coordinator for the Oregon Department of Geology and Mineral Industries (DOGAMI)

The Middle Columbia Basin of north-central Oregon lies across the axis of the High Cascades volcanic arc, stretching from Cascade Locks east to Biggs and southward from the Columbia River to Tygh Valley. Ongoing Geologic mapping in the basin by the Oregon Department of Geology and Mineral Industries is providing new insight into the middle Miocene to present volcanic and structural development of the region. This talk will summarize local Columbia River Basalt Group stratigraphy, discuss new geochemical data and geochronologic constraints on late Miocene to Pleistocene Early to Late High Cascades Volcanic Rocks, and characterize the major structural trends in the region. 

Jason McClaughry is the Eastern Oregon Regional Geologist, Earth Science Section Supervisor, and coordinates the statewide geologic mapping program for the Oregon Department of Geology and Mineral Industries (DOGAMI). He has worked extensively across the state mapping and researching a number of volcanic provinces. Jason holds a M.S. degree in Geology from Washington State University and a B.S. degree in Geology from the University of Puget Sound.