DI22A:
Geochemical and Geophysical Links between Subduction Zone Dynamics and Arc Systems II


Session ID#: 9788

Session Description:
This session aims to explore the complex processes linking subduction dynamics and arc volcanism. We focus particularly on reconciling geochemical and geophysical observables with dynamic processes.  Subduction zones exhibit heterogeneity in composition and thickness of subducting sediments, slab age and morphology, faulting characteristics, and thermal structure.  This heterogeneity leads to temporal and spatial variability in mantle flow, seismicity, magma composition and productivity, and rates of subduction and back-arc spreading. The physical-chemical conditions and processes in arc systems have been inferred from geophysical and geochemical observations, experimental rheologic data, and geodynamic modeling. We invite contributions from these disciplines and others that link the physical-chemical conditions at volcanic arcs and the underlying mantle wedge with the dynamic processes in subduction zones.
Primary Convener:  Aubreya Nicole Adams, Colgate University, Department of Geology, Hamilton, NY, United States
Conveners:  Erin A Wirth, Yale University, New Haven, United States, Ikuko Wada, Department of Earth Sciences, Minneapolis, United States and Maryjo N Brounce, University of Rhode Island Narragansett Bay, Narragansett, RI, United States
Chairs:  Aubreya Nicole Adams, Colgate University, Department of Geology, Hamilton, NY, United States and Erin A Wirth, Yale University, New Haven, United States
OSPA Liaison:  Maryjo N Brounce, University of Rhode Island Narragansett Bay, Narragansett, RI, United States
Co-Organized with:
Study of Earth's Deep Interior, Seismology, Tectonophysics, and Volcanology, Geochemistry and Petrology

Cross-Listed:
  • S - Seismology
  • T - Tectonophysics
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

Abstracts Submitted to this Session:

Geoffrey A Abers, Cornell University, Ithaca, NY, United States, Bradley R Hacker, University of California Santa Barbara, Santa Barbara, CA, United States, Peter E van Keken, University of Michigan Ann Arbor, Ann Arbor, MI, United States, Junichi Nakajima, Tokyo Institute of Technology, Tokyo, Japan and Saeko Kita, National Research Institute for Earth Science, Tsukuba, Japan
Maria-Luce Frezzotti, University of Milan - Bicocca, Department of Earth and Environmental Sciences, Milan, Italy and Angelo Peccerillo, University of Milan - Bicocca, Milan, Italy
Cian R Wilson, Carnegie Institution for Science, Earth and Planets Laboratory, Washington, United States, Marc W Spiegelman, Columbia University of New York, Palisades, NY, United States, Peter E van Keken, University of Michigan Ann Arbor, Ann Arbor, MI, United States and Bradley R Hacker, University of California Santa Barbara, Santa Barbara, CA, United States
Rebecca Freeburn1, Jeroen Van Hunen2, Benjamin Louis Maunder3, Valentina Magni1 and Pierre Bouilhol4, (1)University of Durham, Durham, United Kingdom, (2)University of Durham, Department of Earth Sciences, Durham, United Kingdom, (3)University of Durham, Durham, DH1, United Kingdom, (4)Durham University, Durham, United Kingdom
Christopher R Kincaid1, Sara Szwaja2, Richard Tucker Sylvia2 and Kelsey A Druken3, (1)University of Rhode Island, Narragansett, RI, United States, (2)University of Rhode Island Narragansett Bay, Narragansett, RI, United States, (3)Australian National University, Canberra, ACT, Australia
Changyeol Lee, Chonnam National University, Gwangju, Korea, Republic of (South) and Ikuko Wada, Department of Earth Sciences, Minneapolis, United States
Esteban Gazel, Virginia Tech, Department of Geosciences, Blacksburg, United States, Jorden L Hayes, University of Wyoming, Laramie, United States, Mark J Caddick, Virginia Tech, Blacksburg, VA, United States and Pilar Madrigal, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
Sune Nielsen1, Julie Prytulak2, Terry A Plank3, Gene M Yogodzinski4, Tristan J Kading5, Jerzy Blusztajn6, Maureen E E Auro7, Suzanne Mahlburg Kay8 and Robert W Kay8, (1)Woods Hole Oceanographic Institution, Department of Geology and Geophysics, Woods Hole, United States, (2)Imperial College London, London, United Kingdom, (3)Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, (4)University of South Carolina, School of Earth-Ocean-Environment, Columbia, United States, (5)Woods Hole Oceanographic Insti, Woods Hole, MA, United States, (6)WHOI, Department of Marine Geology and Geophysics, Woods Hole, MA, United States, (7)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, (8)Cornell University, Ithaca, NY, United States