Compositional and Physical Gradients in the Magmas of the Devine Canyon Tuff, Eastern Oregon: Constraints for Evolution Models of Voluminous High-silica Rhyolites

Compositional and Physical Gradients in the Magmas of the Devine Canyon Tuff, Eastern Oregon: Constraints for Evolution Models of Voluminous High-silica Rhyolites

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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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Bibliographic Details
Main Author:	Isom, Shelby Lee
Format:	Others
Published:	PDXScholar 2017
Subjects:	Magmas > Oregon Eastern > Composition Eastern > Analysis Petrology > Oregon Eastern Volcanic ash tuff etc > Oregon Earth Sciences Geology
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

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