Compositional and Physical Gradients in the Magmas of the Devine Canyon Tuff, Eastern Oregon: Constraints for Evolution Models of Voluminous High-silica Rhyolites
Large-volume silicic ignimbrites erupt from reservoirs that vary in composition, temperature, volatile content and crystallinity. The 9.7 Ma Devine Canyon Tuff (DCT) of eastern Oregon is a large-volume (>250 km3), compositionally zoned and variably welded ignimbrite. The ignimbrite exhibits heter...
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PDXScholar
2017
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Online Access: | https://pdxscholar.library.pdx.edu/open_access_etds/3885 https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=4898&context=open_access_etds |