V53G:
A Tangled Web? Generation and Transport of Fluids, Volatiles, and Melts in Subduction Zones from Source to Surface I


Session ID#: 9802

Session Description:
We seek to integrate multidisciplinary efforts to advance our understanding of the generation and transport of volatiles and melts in subduction zones to further comprehend the deep volatile cycle and arc magma genesis. New geodynamic models and geophysical imaging techniques continue to improve our understanding of melt and fluid distribution in the mantle. Ground-truth evidence for these models and images is provided through geochemical, petrologic, geochronologic and field studies of lavas erupted on the surface, and the mantle and crust from which magmas are derived and through which they must pass. Thus the tangled web of sub-arc magmatic and volatile cycling is opening to provide a sharper view. This interdisciplinary session invites submissions from geochemistry, petrology, geophysics, modeling, experiments and field geology that address the temporal and spatial evolution of subduction outfluxes, evidence for sub-arc mantle wedge processes and geochemical exchange between Earth’s reservoirs.
Primary Convener:  Julia Ribeiro, Guangzhou Institute of geochemistry, Guangzhou, China
Conveners:  Christy B. Till, Arizona State University, School of Earth & Space Exploration, Tempe, AZ, United States, Leif Karlstrom, University of Oregon, Department of Earth Sciences, Eugene, OR, United States and Horst Marschall, Woods Hole Oceanographic Inst., Woods Hole, MA, United States
Chairs:  Julia Ribeiro, Rice University, Houston, TX, United States, Christy B. Till, Arizona State University, School of Earth & Space Exploration, Tempe, AZ, United States, Horst Marschall, Woods Hole Oceanographic Inst., Woods Hole, MA, United States and Leif Karlstrom, University of Oregon, Eugene, OR, United States
OSPA Liaison:  Leif Karlstrom, University of Oregon, Eugene, OR, United States

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • MR - Mineral and Rock Physics
  • S - Seismology
  • T - Tectonophysics
Co-Sponsor(s):
  • EGU-GMPV: European Geosciences Union – Geochemistry, Mineralogy, Petrology, and Volcanology - European Geosciences Union – Geochemistry, Mineralogy, Petrology, and Volcanology
  • GS: Geochemical Society - Geochemical Society
  • MSA: Mineralogical Society of America - Mineralogical Society of America
Index Terms:

3621 Mantle processes [MINERALOGY AND PETROLOGY]
3653 Fluid flow [MINERALOGY AND PETROLOGY]
8413 Subduction zone processes [VOLCANOLOGY]
8439 Physics and chemistry of magma bodies [VOLCANOLOGY]

Abstracts Submitted to this Session:

Seismic Constraints on Water and Melt Pathways and Fluxes Through Island Arc System (Invited) (67523)
Douglas Wiens, Washington University in St. Louis, St. Louis, MO, United States, Songqiao Shawn Wei, Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States, Chen Cai, Washington University in St Louis, St. Louis, MO, United States, Melody O Eimer, Washington University in St Louis, Department of Earth and Planetary Sciences, St. Louis, MO, United States and Aubreya Nicole Adams, Colgate University, Department of Geology, Hamilton, NY, United States
Using Electrical Conductivity to Map Melt and Fluids at Subduction Zones (Invited) (69558)
Rob L Evans1, Emily K Sarafian1 and Anne Pommier2, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)UC San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
Untangling Element Fluxes From The Subducting Slabs: Aqueous Solutions Through The Electrostatic Lense (66895)
Matthieu Galvez1,2, James A Connolly1 and Craig E Manning3, (1)ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland, (2)Carnegie Institution for Science, Geophysical Laboratory, Washington, DC, United States, (3)University of California Los Angeles, Earth, Planetary and Space Sciences, Los Angeles, CA, United States
Carbon in, Carbon out: Reevaluating Carbon Fluxes in Subduction Zones (Invited) (69373)
Craig E Manning, University of California Los Angeles, Earth, Planetary and Space Sciences, Los Angeles, CA, United States and Peter B Kelemen, Lamont -Doherty Earth Observatory, Palisades, NY, United States; Columbia University, New York, NY, United States
Buoyant Migration of Melt with Variable Physical Properties: Effect of Melt Viscosity and Its Dependence on Volatiles (81170)
E Marc Parmentier, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, United States
Melt-Rock Reaction in the Mantle Wedge (61030)
Alexandra L Mitchell, Massachusetts Institute of Technology, Cambridge, MA, United States and Timothy L Grove, Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, United States
Complex interactions between diapirs and 4-D subduction driven mantle wedge circulation. (Invited) (80882)
Richard Tucker Sylvia, University of Rhode Island Graduate School of Oceanography, Narragansett, RI, United States and Christopher R Kincaid, University of Rhode Island, Narragansett, RI, United States
Can slabs melt beneath forearcs in hot subduction zones? (68449)
Julia Ribeiro, Guangzhou Institute of geochemistry, Guangzhou, China, Rene Maury, Université de Bretagne Occidentale, Brest, France and Michel Gregoire, Toulouse University, Toulouse, France

See more of: Volcanology, Geochemistry and Petrology