T31F:
Subduction Top to Bottom (ST2B-2) IV Posters

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Session ID#: 12903

Session Description:
From top-to-bottom, many geological, geophysical, petrologic/geochemical, and theoretical advances have been made toward understanding subduction zone processes and dynamics since AGU Geophysical Monograph “Subduction Top to Bottom” was published 20 years ago. This session and a related themed issue in GEOSPHERE are intended to revisit the issues that were explored in the 1996 publication and re-assess them in light of recent advancements as well as explore new discoveries and advances in subduction zone research. We invite the broadest possible range of contributions, including subduction-related hazards (volcanic eruptions, earthquakes and tsunamis) and resources.
Primary Convener:  Gray E Bebout, Lehigh University, Dept. Earth and Environmental Sciences, Bethlehem, PA, United States
Conveners:  David William Scholl, USGS Geological Survey, Emeritus, Earthquake Science Center, Moffett Field, CA, United States, Robert J Stern, University of Texas at Dallas, Geosciences, Richardson, TX, United States and Philippe Agard, Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre Paris, ISTeP, Paris, France
Chairs:  Philippe Agard, Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre Paris, ISTeP, Paris, France and David William Scholl, USGS Geological Survey, Emeritus, Earthquake Science Center, Moffett Field, CA, United States
OSPA Liaison:  David William Scholl, USGS Geological Survey, Emeritus, Earthquake Science Center, Moffett Field, CA, United States

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • MR - Mineral and Rock Physics
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1031 Subduction zone processes [GEOCHEMISTRY]
7240 Subduction zones [SEISMOLOGY]
8104 Continental margins: convergent [TECTONOPHYSICS]
8413 Subduction zone processes [VOLCANOLOGY]

Abstracts Submitted to this Session:

Subducting Plate Breakup by Plume-Lithosphere Interaction (126386)
Alexander Koptev, University Pierre and Marie Curie Paris VI, ISTEP, Paris, France, Taras Gerya, ETH Zurich, Department of Earth and Planetary Sciences, Zurich, Switzerland, Laurent Jolivet, University of Orleans, Orleans, France and Sylvie D Leroy, University Pierre and Marie Curie Paris VI, istep, Paris, France
A 1400 km geochemical transect along the Central American Arc: Summary of mafic Holocene volcanism from Guatemala to Panama (131279)
Joerg Geldmacher1, Kaj Hoernle1, James B Gill2, Folkmar Hauff1 and Ken Heydolph3, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)University of California Santa Cruz, Santa Cruz, CA, United States, (3)Helmholtz-Zentrum GEOMAR, Kiel, Germany
The Role of Viscous Coupling in Determining Subduction Style within Numerical Models of Mantle Convection (132097)
Molly M James, Vassar College, Poughkeepsie, United States, Robert I Petersen, University of California San Diego, La Jolla, CA, United States and Dave R Stegman, University of California San Diego, Scripps Institution of Oceanography, La Jolla, United States
Lateral evolution of the deep crustal structure of the Lesser Antilles Island arc from wide-angle seismic modelling. (138179)
Muriel Laurencin, IUEM, LGO UMR 6538, Plouzané, France, Frauke Klingelhoefer, Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR6538, Plouzané, France, Boris Marcaillou, University of Nice-Sophia Antipolis, Nice, France, David Graindorge, Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR5638, Plouzané, France, Mikael Evain, IFREMER, Plouzané, France and Jean-Frederic Lebrun, Université des Antilles et de la Guyane, Géosciences, Pointe-à-Pitre, France
Transition of the Slab Geometry at the Eastern End of the Trans-Mexican Volcanic Belt from Ambient Noise and Earthquake Surface Waves (148659)
Jorge C. Castellanos, Lumetec Inc, Pasadena, United States, Robert W Clayton, California Institute of Technology, Pasadena, CA, United States, Zack Spica, University of Michigan, Ann Arbor, MI, United States and Xyoli Perez-Campos, UNAM National Autonomous University of Mexico, Mexico City, Mexico
Seismic Anisotropy due to Crust and Uppermost Mantle Deformation Beneath Southern Peru and Bolivia: Constraints from Receiver Functions (150474)
Neta Bar, Yale University, New Haven, CT, United States, Maureen D Long, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States, Lara S Wagner, Carnegie Institution for Science, Earth and Planets Laboratory, Washington, United States, Susan L Beck, University of Arizona, Department of Geosciences, Tucson, AZ, United States and Hernando Tavera, Instituto Geofísico del Perú, Lima, Peru
Geophysical constraints on geodynamic processes at convergent margins: A global perspective (155518)
Irina M M Artemieva1, Hans Thybo1 and Alexey Shulgin2, (1)University of Copenhagen, København K, Denmark, (2)University of Oslo, CEED, Oslo, Norway
3-D Subduction Modeling: The Effects of Back-Arc Boundary Shape on Mantle Wedge Temperature (159797)
Danielle Giesy, University of California, Los Angeles, CA, United States and Ikuko Wada, University of Minnesota Twin Cities, Minneapolis, United States
Termination of an ancient intra-oceanic subduction zone against the eastern margin of Gondwana (160120)
Siobhan Mary Campbell1, Nathan A Simmons2, Steve Myers2 and Robert Moucha3, (1)Syracuse University, Syracuse, NY, United States, (2)Lawrence Livermore National Laboratory, Livermore, United States, (3)Syracuse University, Earth and Environmental Sciences, Syracuse, United States
Crustal structure and tectonic history of the Kermadec arc inferred from MANGO seismic refraction profiles (160317)
Dan Bassett1, Heidrun Kopp2, Rupert Sutherland3, Stuart Henrys4, Anthony Brian Watts5, Christian Timm6, Martin Scherwath7, Ingo Grevemeyer2 and Cornel E J de Ronde4, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (3)Victoria University of Wellington, Wellington, New Zealand, (4)GNS Science, Lower Hutt, New Zealand, (5)University of Oxford, Earth Sciences, Oxford, United Kingdom, (6)GNS Science, Department of Marine Geoscience, Lower Hutt, New Zealand, (7)University of Victoria, Ocean Networks Canada, Victoria, BC, Canada
3-D Mantle Wedge Flow and Thermal Structure of the Hikurangi Subduction Zone (160946)
Ellen Jilek, University of Minnesota, Minneapolis, MN, United States and Ikuko Wada, University of Minnesota Twin Cities, Minneapolis, United States
Geochemical Evidence for Mantle Enrichment and Lower Crustal Assimilation in Orogenic Volcanics from Monte Arcuentu, Southern Sardinia: Implications for Geodynamics and Evolution of the Western Mediterranean (165370)
Pamela D Kempton, Kansas State University, Department of Geology, Manhattan, KS, United States, Hilary Downes, Department of Earth and Planetary Sciences, Birkbeck, University of London, London, United Kingdom and Sara Vero, Kansas State University, Manhattan, KS, United States
Subduction, Extension, and a Mantle Plume in the Pacific Northwest (167410)
William Bythewood Hawley, University of California Berkeley, Berkeley, CA, United States; Berkeley Seismological Laboratory, Berkeley, CA, United States, Richard M Allen, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States and Mark A Richards, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States
The Thermal Structure of Slabs: Insight From Geochemical Data and Geodynamic Models (175947)
Benjamin Louis Maunder, University of Durham, Durham, DH1, United Kingdom, Jeroen Van Hunen, University of Durham, Department of Earth Sciences, Durham, United Kingdom and Pierre Bouilhol, Durham University, Durham, United Kingdom
Phase Equilibria Modeling of Coesite Eclogite from the Sulu Belt, Eastern China (177581)
Bin Xia1,2, Michael Brown2,3, Lu Wang1,4, Songjie Wang1,2 and Philip M Piccoli2, (1)China University of Geosciences Wuhan, College of Earth Sciences, Wuhan, China, (2)University of Maryland College Park, Laboratory for Crustal Petrology, Department of Geology, College Park, MD, United States, (3)University of Maryland, Laboratory for Crustal Petrology, Department of Geology, College Park, MD, United States, (4)China University of Geosciences Wuhan, Center for Global Tectonics, Wuhan, China
Dual subduction and intraoceanic arc-backarc plate in the Mesozoic NW Pacific: Insights from Hokkaido, Japan. (177888)
Hayato Ueda, Department of Geology, Niigata University, Niigata, Japan
On the Origin of the High Magnetization Zone Parallel to the Paleoproterozoic – Mesoproterozoic Southeastern Margin (Neodymium Line) of Laurentian United States (196307)
Rachel Durham and Dhananjay Ravat, University of Kentucky, Lexington, KY, United States
Lower crustal metastable gabbro and volcanism in warm subduction systems (196964)
R Shane McGary, James Madison University, Harrisonburg, VA, United States and Stephane Rondenay, University of Bergen, Department of Earth Science, Bergen, Norway

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