The Columbia River Flood Basalt Province

Eruption chronology of the Columbia River Basalt Group
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Published:August 01, 2013
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CiteCitation
T.L. Barry, S.P. Kelley, S.P. Reidel, V.E. Camp, S. Self, N.A. Jarboe, R.A. Duncan, P.R. Renne, 2013. "Eruption chronology of the Columbia River Basalt Group", The Columbia River Flood Basalt Province, Stephen P. Reidel, Victor E. Camp, Martin E. Ross, John A. Wolff, Barton S. Martin, Terry L. Tolan, Ray E. Wells
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The Columbia River flood basalt province, United States, is likely the most well-studied, radiometrically well-dated large igneous province on Earth. Compared with older, more-altered basalt in flood basalt provinces elsewhere, the Columbia River Basalt Group presents an opportunity for precise, accurate ages, and the opportunity to study relationships of volcanism with climatic excursions. We critically assess the available 40Ar/39Ar data for the Columbia River Basalt Group, along with K-Ar data, to establish an up-to-date picture of the timing of emplacement of the major formations that compose the lava stratigraphy. Combining robust Ar-Ar data with field constraints and...
- absolute age
- Ar/Ar
- basalts
- Cenozoic
- chronology
- Columbia River Basalt Group
- dates
- emplacement
- eruptions
- Grande Ronde Basalt
- Idaho
- igneous rocks
- large igneous provinces
- Miocene
- Neogene
- nomenclature
- Oregon
- paleomagnetism
- Picture Gorge Basalt
- rates
- Saddle Mountains Basalt
- Tertiary
- United States
- volcanic rocks
- volume
- Wanapum Basalt
- Washington
- Imnaha Basalt
- Steens Basalt