Fluid migration through subduction zones: observations and the consequences on geodynamic processes and natural hazards

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Session ID#: 25865

Session Description:
Water plays a vital role in the Earth's evolution. At subduction plate boundaries, vast quantities of fluid are exchanged between the Earth, ocean and atmosphere; however, water transport through subduction zones is only partially understood. Volatile cycling is fundamental to the petrogenesis and eruption of arc magmas. Fluids and dehydration reactions may also play a key role in the earthquake cycle. This session will address some key scientific questions of volatile cycling. What is the role of the slab mantle as a vessel for transporting water into the subduction zone? What are the pathways of volatiles through the subduction system thereby impacting geodynamic processes (e.g. mantle flow)? How are volatile pathways manifested in seismic, volcanic and mineralization potential? We welcome contributions from a range of studies on diverse subduction environments from various disciplines (e.g., but not limited to: geophysical imaging, rock physics, geochemistry, geodynamic modelling).
Primary Convener:  Stephen Paul Hicks, University of Southampton, Southampton, SO14, United Kingdom
Conveners:  Lidong Bie, University of Liverpool, Liverpool, L69, United Kingdom and Andreas Rietbrock, University of Liverpool, School of Environmental Sciences, Liverpool, United Kingdom

  • DI - Study of the Earth's Deep Interior
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology

Abstracts Submitted to this Session:

Alan E Boudreau, Duke University, Earth & Ocean Sciences, Durham, NC, United States and James A Connolly, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
Kyle T Ashley, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, PA, United States and Whitney M Behr, University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States
Donna M Eberhart-Phillips, Martin Reyners and Stephen C Bannister, GNS Science, Lower Hutt, New Zealand
Manabu Morishige, Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan and Peter E Van Keken, Carnegie Institution for Science Washington, Washington, DC, United States
Makoto Otsubo1,2, Jeanne Hardebeck2, Ayumu Miyakawa1, Asuka Yamaguchi3 and Gaku Kimura4,5, (1)Geological Survey of Japan, Tsukuba, Japan, (2)USGS, Menlo Park, CA, United States, (3)Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan, (4)The University of Tokyo, Tokyo, Japan, (5)Tokyo University of Marine Science and Technology, Tokyo, Japan

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