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AGU 2015. Session on Yellowstone Volcanism
From: Matthew Loewen <loewenm@xxxxxxxxxxx>AGU 2015. Session on Yellowstone Volcanism
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Dear Colleagues,
We would like you to consider submitting an abstract to V046: “Yellowstone volcanism from its current _expression_ to early vestiges of hotspot activity via geophysical and petrologic studies.” We hope to bring together investigations of both past and present Yellowstone activity that utilize diverse approaches from geophysics to petrology.
Invited speakers include Ray Wells, Eric Chistiansen, Hsin-Hua Huang, and Kenneth Befus.
Session Description: The Yellowstone-Snake River Plain magmatic province represents one of the largest worldwide centers of bimodal rhyolitic-basaltic volcanism. Although not universally accepted, recent geophysical imaging and geochemical tracers provide strong evidence that the volcanism is driven at depth by a mantle plume from ~17 Ma volcanism in SE Oregon- SW Idaho to present volcanic activity in Yellowstone National Park. Recently studies have also recognized potential earlier traces of the Yellowstone plume in 17+ Ma volcanic centers across Oregon to a 55+ Ma Pacific origin. Advances in geochemical microanalysis, geochronology, numerical modeling, and geophysical imaging are providing new clues to understanding the mantle origin of the hotspot, crustal structures and magma reservoirs, and mechanisms for rhyolite generation and eruption triggering. We seek interdisciplinary contributions from petrologic and geophysical studies or modeling that are working to progress ou
r understanding of current or past state of the Yellowstone hotspot and its volcanos.
Conveners: Matthew Loewen, Ilya Bindeman, Eugene Humphreys
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