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26 T32. Subduction Zones and Their Volcanic Arcs: Initiation and Evolution, Structure, Metamorphism, Magmatism


Session Chairs:
Robert M. Holder | Earth and Environmental Sciences, David Hernández Uribe | Earth and Environmental Sciences, Jordan W. Wang | Geosciences, James Worthington | Geosciences, John He | Earth, Planetary, and Space Sciences, Paul A. Kapp | Geosciences, Megan Mueller | Geosciences

We welcome diverse submissions on the petrology, structure, geochemistry, and geophysics of subduction zones from all approaches. Example topics include initiation, evolution, volatile cycling, ophiolites, arc tempos, high-P metamorphism, mélanges, seismicity, and accretionary wedges.



Presentations

Paper No. Title Presenting Author Start Time End Time Item Duration (min) Action
Introductory Remarks 01:30 PM 01:35 PM 5 min
26-1 Exhumation-Redeposition-Subduction of High-Pressure Metamorphic Rocks in the Franciscan Complex, California: Some Constraints on Cycle Times. John Wakabayashi 01:35 PM 01:55 PM 20 min View
26-2 A Field Guide to Deciphering the Origin of a Franciscan Mélange Arthur Wahl 01:55 PM 02:15 PM 20 min View
26-3 Empirical Constraints on the Long-term Evolution of Subduction-zone Thermal Structure: P–T–t Estimates from the Cedros Island Subduction Complex, Baja California 02:15 PM 02:35 PM 20 min View
26-4 Trans-crustal Magma Diversification using Amphibole Chemometry from Fiordland, New Zealand 02:35 PM 02:55 PM 20 min View
Break 02:55 PM 03:10 PM 15 min
26-5 Amphibole Control on Melt and Trace-Element Evolution in Arc Plutonic Systems: A View from the Jurassic Bonanza Arc, Vancouver Island, Canada Rebecca Morris 03:10 PM 03:30 PM 20 min View
26-6 Tracing Early Paleozoic Arc Processes in Northwestern Gondwana: Nd–Hf Isotopic and Geochemical Evidence from Amphibolites and Orthogneisses, Mérida Andes, Venezuela M. Daniela Tazzo-Rangel 03:30 PM 03:50 PM 20 min View
26-7 Constraining Aplite Melt Extraction Pressures with rhyolite-MELTS Marvin Lopez Acevedo 03:50 PM 04:10 PM 20 min View
26-8 Xenocrystic (XZ) and detrital (DZ) zircon age spectra as tracers of deep crustal processes Adriana Piña 04:10 PM 04:30 PM 20 min View
26-9 Investigating arc crust evolution: the link between metamorphism and magmatism during a high-flux magmatic event Stacia Gordon 04:30 PM 04:50 PM 20 min View



Subduction Zones and Their Volcanic Arcs: Initiation and Evolution, Structure, Metamorphism, Magmatism

Description


Date and Time: Thursday, 23 April - 1:30 PM (Central Time (US & Canada))

Room: LMH, Deli

Session Type: Topical Sessions

Session Format: Oral


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