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Browsing by Author "Kent, Adam J. R."
Now showing items 1-10 of 10
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Koleszar, Alison M. (2011-07-21)This study is an effort to characterize the magma sources, plumbing system, and eruptive behavior of Mount Hood, a low-explosivity recharge-dominated volcano in the Oregon Cascades. The three manuscripts in this disserta ...
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Controls on long-term low explosivity at andesitic arc volcanoes: Insights from Mount Hood, Oregon Koleszar, Alison M.; Kent, Adam J. R.; Wallace, Paul J.; Scott, William E. (Elsevier, 2012-03-15)The factors that control the explosivity of silicic volcanoes are critical for hazard assessment, but are often poorly constrained for specific volcanic systems. Mount Hood, Oregon, is a somewhat atypical arc volcano in ...
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Giles, Denise E. L. (2009-12-24)The Aucanquilcha Volcanic Cluster (AVC) is the erupted part of a magmatic system with a complex and long-lived history. The AVC lies at 21°S in the high Andes and is built on thick continental crust. The thick crust in t ...
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Goddard, Charlotte Ives (2007-12-17)This research incorporates geochemical and helium isotopic analyses of Lau Basin volcanic glasses, along with helium isotopic analyses of water column hydrothermal plumes to better understand the processes that control t ...
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Lieuallen, Athena Erin (2010-10-14)Comprehension of eruptive histories is critical in understanding the evolution of magmatic systems at arc volcanoes and may supply evidence to the petrogenesis of intermediate and evolved magmas. Within the 300 ka erupt ...
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Weinsteiger, Allison Beth (2010-11-16)The primary goal of this study is to access the processes that alter primary melts after segregation from a mantle source and ultimately form petrologic Layers 2 and 3 of the Ocean Crust. Mineral, melt inclusion, and who ...
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Adams, David T.; Nielsen, Roger L.; Kent, Adam J. R.; Tepley, Frank J. , III (American Geophysical Union, 2011-12-22)Melt inclusions trapped in phenocryst phases are important primarily due to their potential of preserving a significant proportion of the diversity of magma composition prior to modification of the parent magma array dur ...
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Ford, Mark T., 1973- (2011-12-14)Understanding continental crust formation and modification is a fundamental and longstanding geologic problem. Influx of mantle-derived basaltic magma and partial melting of the crust are two ways to drive crustal differ ...
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Rowe, Michael C. (2006-05-23)The primary goal of this study is to assess the impact of a subduction component added to the mantle wedge beneath the Oregon Cascades to the composition and fO2 of primitive Cascade basalts. Olivine-hosted melt inclus ...
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Vigouroux, Nathalie; Wallace, Paul J.; Williams-Jones, Glyn; Kelley, Katherine; Kent, Adam J. R.; Williams-Jones, Anthony E. (American Geophysical Union, 2012-09-28)Subduction zone recycling of volatiles (H₂O, Cl, S, F) is controlled by the nature of subducted materials and the temperature-pressure profile of the downgoing slab. We investigate the variability in volatile and fluid-m ...
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