T050-IV
Subduction Top to Bottom 2 (ST2B-2): Processes and Products Modern and Ancient IV Poster

Session ID#: 76155

Session Description:
From top-to-bottom, many geological, geophysical, petrologic/geochemical, and theoretical advancements have been made toward understanding subduction zone processes and dynamics. The term “subduction” was introduced in its modern sense in 1970 and the 1996 AGU Geophysical Monograph “Subduction Top to Bottom” marked a milestone in our understanding by capturing 26 years of early advances. This “Subduction Top to Bottom 2” (ST2B-2) session and a related themed issue in the GSA journal GEOSPHERE (now at more than 60 papers and growing) revisit these issues 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 abstracts considering subduction-related hazards, climate effects, and resources. We encourage presentations regarding processes at modern subduction zones and evidence of ancient subduction yielding insight regarding Earth plate tectonic evolution and processes at depth in modern margins.
Index Terms:

7230 Seismicity and tectonics [SEISMOLOGY]
8158 Plate motions: present and recent [TECTONOPHYSICS]
8170 Subduction zone processes [TECTONOPHYSICS]
8488 Volcanic hazards and risks [VOLCANOLOGY]


Primary Convener:  Gray E Bebout, Lehigh University, Dept. Earth and Environmental Sciences, Bethlehem, PA, United States
Conveners:  David William Scholl, University of Alaska Fairbanks, Geology and Geophysics, Fairbanks, AK, United States, Robert J Stern, University of Texas at Dallas, Geosciences, Richardson, TX, United States and Laura Wallace, University of Texas, Institute for Geophysics, Austin, TX, United States
Primary Liaison:  Gray E Bebout, Lehigh University, Dept. Earth and Environmental Sciences, Bethlehem, PA, United States
 
Linking Surface Deformation in South-central Turkey to Slab Break-Off (Invited) (494045)
Taylor F Schildgen, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, Simone Racano, Roma Tre University, Department of Science, Rome, Italy, Domenico Cosentino, Roma Tre University, Rome, Italy and Scott R Miller, University of Utah, Salt Lake City, UT, United States
 
Formation of slab tears controls Earth’s major silicic volcanisms (Invited) (496944)
Lijun Liu1, Jiashun Hu2, Quan Zhou3, Yiming Liu4 and Diandian Peng2, (1)University of Illinois at Urbana-Champaign, Urbana, IL, United States, (2)University of Illinois at Urbana Champaign, Urbana, IL, United States, (3)Geophysics, School of Geodesy and Geomatics, Wuhan University, China, Wuhan, China, (4)China University of Petroleum, East China, School of Geosciences, Qingdao, China
 
On the cusp of a tear: Continental subduction in the Banda Arc (497579)
Meghan Samantha Miller1, Lisa A Alpert2, Thorsten W Becker3, Maxwell Philip Dahlquist4, Cooper William Harris4, Adam Francis Holt5, Yuwei LI6, Hendro Nugroho7, Leland O'Driscoll8, Robert Porritt9, Nova Roosmawati7, A. Joshua West4, Sri Widiyantoro10 and Ping Zhang7, (1)Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, (2)Aera Energy, LLC, Bakersfield, CA, United States, (3)University of Texas at Austin, Austin, TX, United States, (4)University of Southern California, Los Angeles, CA, United States, (5)Massachusetts Institute of Technology, Cambridge, MA, United States, (6)Australian National University, Canberra, ACT, Australia, (7)Australian National University, Canberra, Australia, (8)University of Oregon, Eugene, OR, United States, (9)University of Texas at Austin, Austin, United States, (10)Institut Teknologi Bandung, Bandung, Indonesia
 
Neogene Ridge subduction and slab window in the Northern Andean block - Tectonic implications (497996)
Susana Hoyos1, Marion Weber2, Andrés M Cardenás-Rozo3 and Jose Duque3, (1)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, (2)Universidad Nacional de Colombia, Medellin, Colombia, (3)EAFIT University, Earth sciences, Medellin, Colombia
 
The Fragmented Death of the Farallon Plate (518261)
William Bythewood Hawley, Lamont -Doherty Earth Observatory, Palisades, NY, United States and Richard M Allen, Univ California Berkeley, Berkeley, CA, United States
 
3D Slab-breakoff in laboratory experiments (544467)
Carlos Fernandez-Garcia, Univ Rennes, CNRS, Géosciences Rennes, UMR 6118, Rennes, France, Benjamin Guillaume, Univ Rennes, CNRS, Géosciences Rennes - UMR 6118, Rennes, France and Jean-Pierre Brun, Géosciences Rennes, L, Rennes Cedex, France
 
Constraints on the lithospheric structure of southern Patagonia from receiver function and surface wave analysis (567847)
Douglas Wiens, Washington University in St Louis, Department of Earth and Planetary Sciences, St. Louis, MO, United States, Maeva Pourpoint, Washington University in St Louis, St. Louis, MO, United States, Sergio E Barrientos, Univ de Chile, Santiago, Chile and Andreas Richter, TU Dresden, Dresden, Germany
 
How is active faulting within and along the margins of mountain belts affected by sediments in their forelands? (491403)
Samuel Edward Wimpenny, University of Cambridge, Cambridge, United Kingdom
 
Role of Sediments in Affecting the Morphology and Rheology of Subduction Megathrusts – An Overview (Invited) (497390)
Kelin Wang, Geological Survey of Canada, Pacific Geoscience Centre, Sidney, BC, Canada
 
Linked Carbonate Cementation and Silicate Dissolution in the Sediments of the Bengal-Nicobar Fan, Inputs to the Sumatra Subduction Zone (506839)
Marta E Torres, Oregon State Univ, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States and Kitty Milliken, University of Texas at Austin, Bureau of Economic Geology, Austin, TX, United States
 
Ages of Faulting and the Nature of Fluid-Rock Interactions in the Deep Nankai Accretionary Prism, IODP Site C0002, Japan (513236)
James C Sample1, Armin Dielforder2, Barbara E John3, Christine Regalla4, Aradhna K Tripati5, Asuka Yamaguchi6, Yuzuru Yamamoto7, Matt Ikari8, Gaku Kimura9, Masataka Kinoshita10, Hiroko Kitajima11, Lena Maeda7, Demian M Saffer12, Sean Toczko7 and IODP Expedition 358 Science Party, (1)Northern Arizona University, Flagstaff, AZ, United States, (2)University of Bern, Bern, Switzerland, (3)University of Wyoming, Laramie, WY, United States, (4)McGill University, Montreal, QC, Canada, (5)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Department of Atmospheric and Oceanic Sciences, Institute of the Environment and Sustainability, Institute of Geophysics and Planetary Physics, Los Angeles, CA, United States, (6)University of Tokyo, Kashiwa, Japan, (7)JAMSTEC, Yokohama, Japan, (8)MARUM, University of Bremen, Bremen, Germany, (9)The University of Tokyo, Tokyo, Japan, (10)JAMSTEC, Nankoku, Japan, (11)Texas A&M University, Center for Tectonophysics and the Department of Geology & Geophysics, College Station, TX, United States, (12)Pennsylvania State University, University Park, PA, United States
 
Strong sediment inputs at the south-central Chile margin revealed from fault patterns in 2D seismic reflection data and the relationship to megathrust earthquakes (518458)
Kelly Olsen, University of Texas at Austin, Austin, TX, United States, Nathan L Bangs, Univ Texas, Institute for Geophysics, Austin, TX, United States, Anne M Trehu, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States and Eduardo Contreras Reyes, Universidad de Chile, Department of Geophysics, Santiago, Chile
 
Reconciling Porewater Geochemical Observations with Predicted Smectite to Illite Reaction Progress on the Cascadia Margin Offshore Oregon (543639)
Elizabeth Screaton, Univ of FL-Geological Sciences, Gainesville, FL, United States and Marta E Torres, Oregon State Univ, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
Basal sediment accretion along the south central Chile margin and implications for megathrust processes and great earthquakes (557453)
Nathan L Bangs1, Anne M Trehu2, Julia Morgan3, Eduardo Contreras-Reyes4, Shuoshuo Han5, Adrien F Arnulf6, Kelly Olsen1 and Edward Zhang7, (1)University of Texas at Austin, Austin, TX, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (3)Rice University, Earth and Planetary Sciences, Houston, TX, United States, (4)University of Chile, Santiago, Chile, (5)University of Texas, Institute for Geophysics, Austin, TX, United States, (6)Scripps Institution of Oceanography, La Jolla, CA, United States, (7)USGS Western Regional Offices Menlo Park, Menlo Park, CA, United States
 
Evolution of compressional wave velocity and porosity in carbonate and siliceous subduction zone input materials (564867)
Tamara Jeppson, Texas A&M University, Geology and Geophysics, College Station, TX, United States and Hiroko Kitajima, Texas A&M University, Center for Tectonophysics and the Department of Geology & Geophysics, College Station, TX, United States
 
Sediment thickness and its influence on subduction dynamics and seismicity (583780)
Silvia Brizzi, Università Roma Tre, Dip. Scienze, Roma, Italy, Iris van Zelst, ETH Swiss Federal Institute of Technology Zurich, Department of Earth Sciences, Zurich, Switzerland, Francesca Funiciello, Università Roma Tre, Dip. Scienze, Rome, Italy, Fabio Corbi, Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany and Ylona van Dinther, ETH Zurich, Zurich, Switzerland
 
Insight on the physical properties of sediments within the Nankai inner accretionary prism, from repeated borehole geophysics of NanTroSEIZE IODP expeditions 348 and 358. (614711)
Mai Linh Doan1, Yohei Hamada2, Tamara N. Jeppson3, Gilles Guerin4, Takeshi Tsuji5, Suguru Yabe6, Marianne Conin7, Gregory F Moore8, Yoshinori Sanada9, Yukari Nakasa Kido10, Saneatsu Saito11, Erwan Le Ber12, Asuka Yamaguchi13, Matt Ikari14, Harold J Tobin15, Demian M Saffer16, Hiroko Kitajima17, Masataka Kinoshita18, Gaku Kimura6, Takehiro Hirose2, Lena Maeda9, Sean Toczko9, Nobu Eguchi9, Yusuke Kubo9 and the IODP Expedition 358 Shipboard Scientific Party, (1)ISTerre Institute of Earth Sciences, Saint Martin d'Hères, France, (2)JAMSTEC, Kochi Institute for Core Sample Research, Nankoku, Japan, (3)Texas A&M University College Station, Department of Geology and Geophysics, College Station, TX, United States, (4)Columbia University, Palisades, NY, United States, (5)Kyushu University, Department of Earth Resources Engineering, Fukuoka, Japan, (6)The University of Tokyo, Tokyo, Japan, (7)Laboratoire GeoRessources (UMR 7359, Université de Lorraine, CNRS, CREGU), Nancy, France, (8)University of Hawaii at Manoa, Earth Sciences, Honolulu, HI, United States, (9)JAMSTEC, Yokohama, Japan, (10)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (11)JAMSTEC, Yokosuka, Japan, (12)University of Leicester, Leicester, United Kingdom, (13)University of Tokyo, Kashiwa, Japan, (14)MARUM, University of Bremen, Bremen, Germany, (15)University of Washington Seattle Campus, Department of Earth and Space Sciences, Seattle, WA, United States, (16)Pennsylvania State University, University Park, PA, United States, (17)Texas A&M University, Center for Tectonophysics and the Department of Geology & Geophysics, College Station, TX, United States, (18)Japan Agy Marine Sci Tech, Nankoku Kochi, Japan
 
Seafloor sediment thickness below S-net observatories offshore of the east Japan revealed from PS conversion wave at the sedimentary basement (621322)
Ryosuke Azuma1, Ryota Takagi2, Genti Toyokuni2, Takashi Nakayama3, Syuichi Suzuki2, Makiko Sato3, Naoki Uchida3 and Ryota Hino3, (1)Tohoku University, Research Center for Prediction of Earthquake and Volcanic Eruption, Sendai, Japan, (2)Tohoku University, Sendai, Japan, (3)Tohoku University, Graduate School of Science, Sendai, Japan
 
Acoustic Velocity and Attenuation in Sediments Entering the North Sumatran Subduction Zone (623694)
Gilles Guerin, Columbia University, Palisades, NY, United States
 
The effects of extreme sedimentation on the thermal structure of the Indian Plate in the Ganges-Meghna-Brahmaputra delta and tectonic implications (629299)
Céline Grall, Columbia University of New York, Palisades, United States, Michael S Steckler, Lamont-Doherty Earth Obs, Palisades, NY, United States, Bar Oryan, Lamont -Doherty Earth Observatory, Palisades, NY, United States, W Roger Buck, Columbia University of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States and Syed Humayun Akhter, University of Dhaka, Department of Geology, Dhaka, Bangladesh
 
Beyond Plagioclase-Peridotite: Unravelling the melt-rock interaction history of the Santa Elena Ophiolite, NW Costa Rica (633050)
Danelle Carr, University of Houston, Earth and Atmospheric Sciences, Houston, TX, United States, Matthew Phillip Loocke, University of Texas at Arlington, Shimadzu Center for Environmental, Forensics and Material Science, Arlington, United States, Jonathan E Snow, University of Houston, Houston, TX, United States, Esteban Gazel, Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States and Barry Shaulis, University of Arkansas, Fayetteville, AR, United States
 
ISC-EHB 1964-2015, A COMPREHENSIVE GLOBAL DATABASE OF IMPROVED EARTHQUAKE HYPOCENTERS AND STATION RESIDUALS AS A TOOL FOR THE STUDY OF GLOBAL SEISMICITY AND EARTH STRUCTURE (485827)
Eric Robert (Bob) Engdahl1, Charikleia Gkarlaouni2, Burak Sakarya2, James Harris2, Domenico Di Giacomo2 and Dmitry A Storchak2, (1)University of Colorado at Boulder, Physics, Boulder, CO, United States, (2)International Seismological Centre (ISC), Thatcham, United Kingdom
 
Orogenic architecture of the Mediterranean region and kinematic reconstruction of its tectonic evolution since the Triassic (487350)
Douwe J J Van Hinsbergen1, Trond Helge Torsvik2, Stefan M. Schmid3, Liviu Matenco1, Marco Maffione4, Reinoud Vissers1, Derya Gürer5 and Wim Spakman6, (1)Utrecht University, Department of Earth Sciences, Utrecht, Netherlands, (2)University of Oslo, Centre for Earth Evolution and Dynamics (CEED), Oslo, Norway, (3)ETH-Zürich, Erdwissenschaften, Zürich, Switzerland, (4)University of Birmingham, School of Geography Earth and Environmental Sciences, Birmingham, B15, United Kingdom, (5)University of Queensland, School of Earth and Environmental Sciences, Brisbane, Australia, (6)Utrecht University, Utrecht, Netherlands
 
Characterising Complex Subduction Zone Interaction Beneath Northern Sulawesi (489068)
Tim Greenfield1, Nicholas Rawlinson2, Alex Copley1, Sri Widiyantoro3 and Pepen Supendi4, (1)University of Cambridge, Cambridge, United Kingdom, (2)Bullard Laboratories, Cambridge, United Kingdom, (3)Institut Teknologi Bandung, Bandung, Indonesia, (4)Bandung Institute of Technology, Global Geophysics Research Group, Bandung, Indonesia
 
Advancements in the Thermal and Petrologic Modelling of Subduction Zones (Invited) (489210)
Simon M Peacock, University of British Columbia, Vancouver, BC, Canada
 
The Water Cycle in Subduction Zones as Constrained by Seismology (Invited) (490471)
Douglas Wiens1, Chen Cai1, Melody O Eimer1 and Daniel Lizarralde2, (1)Washington University in St Louis, St. Louis, MO, United States, (2)Woods Hole Oceanographic Institution, Geology and Geophysics, Woods Hole, MA, United States
 
Subduction sustaining subduction-transform-edge-propagator (STEP)-fault activity controls back-arc ridge jumps (491542)
Nicholas Schliffke1, Jeroen Van Hunen2, Frédéric Gueydan3, Valentina Magni1 and Mark Benedict Allen1, (1)University of Durham, Durham, United Kingdom, (2)University of Durham, Department of Earth Sciences, Durham, United Kingdom, (3)University of Montpellier II, Montpellier cedex 5, France
 
Slab-Controlled Elemental-Isotopic Enrichments during Subduction Initiation Magmatism, and Variations in Forearc Chemostratigraphy: An Ophiolite Perspective (494008)
Mengming Yu1,2, Yildirim Dilek3, Graciano P Yumul Jr4, Yi Yan2, Carla B. Dimalanta4 and Chi-Yue Huang1, (1)Tongji University, Shanghai, China, (2)Guangzhou Institute of Geochemistry, CAS, Guangzhou, China, (3)Miami University Oxford, Geology & Environmental Earth Science, Oxford, OH, United States, (4)National Institute of Geological Sciences, University of the Philippines, Quezon City, Philippines
 
Subduction Top to Bottom 2 (ST2B-2): The Concept and Progress on a Major Publication Venture (494090)
Gray E Bebout, Lehigh University, Dept. Earth and Environmental Sciences, Bethlehem, PA, United States, David William Scholl, U S Geological Survey, Menlo Park, CA, United States, Robert J Stern, University of Texas at Dallas, Geosciences, Richardson, TX, United States, Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States and Philippe Agard, University Pierre and Marie Curie Paris VI, ISTeP, Paris, France
 
Structural Analysis and Thermochronological Constraints on Tertiary Extensional Faulting in the Klamath Mountain Province (494161)
Taylor Team, Melanie Michalak and Susan M Cashman, Humboldt State University, Arcata, CA, United States
 
Sandbox analogue experiments for subduction of trench-fill sediments beneath accretionary wedge and backstop (494507)
Atsushi Noda1, Hiroaki Koge1, Yasuhiro Yamada2, Ayumu Miyakawa1 and Juichiro Ashi3, (1)National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan, (2)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (3)The University of Tokyo, Bunkyo-ku, Japan
 
Modeling the Effects of Oblique Subduction on Mantle Wedge Seismic Anisotropy (496959)
Lindsey M Kenyon, University of Minnesota Twin Cities, Earth Sciences, Minneapolis, MN, United States and Ikuko Wada, University of Minnesota Twin Cities, Department of Earth Sciences, Minneapolis, MN, United States
 
Forearc Stresses in the Northern Cascadia Subduction Zone Revisited (499616)
Joe Rippke, Minneapolis, United States, Ikuko Wada, Department of Earth Sciences, Minneapolis, MN, United States and Trey James Brink, University of Minnesota, Earth Sciences, Minneapolis, United States
 
Mendocino Fracture Zone – Not So Simple! (500380)
Ginger A Barth1, Douglas S Wilson2, Anne M Trehu3, Daniel S Scheirer4 and Robert J McLaughlin4, (1)USGS Pacific Coastal and Marine Science Center Menlo Park, Menlo Park, CA, United States, (2)Univ California Santa Barbara, Santa Barbara, CA, United States, (3)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (4)USGS, Menlo Park, CA, United States
 
Neogene extension in the southern Cascadia forearc: insights from provenance of the Tertiary Weaverville Formation (502144)
Dana Christensen, Melanie Michalak, Susan M Cashman and Samuel Allen, Humboldt State University, Arcata, CA, United States
 
Late Eocene Extension of the Cascadia Forearc and its Control on Modern Deformation (503556)
Ray E Wells, U.S. Geological Survey, Menlo Park, CA, United States and Richard J Blakely, USGS, Menlo Park, CA, United States
 
Aleutian Basin Stratigraphy: What We Know, What We Think We Know, and What We Don't Know (503821)
Kylara M Martin1, Matthew A Malkowski2, Ginger A Barth3, John Arthur Barron4, Warren T Wood5, David William Scholl6, Daniel S Scheirer4 and Robert J Stern7, (1)California State University East Bay, Hayward, CA, United States, (2)Stanford University, Geological Sciences, Stanford, CA, United States, (3)USGS Western Regional Offices Menlo Park, PCM Science Center, Menlo Park, CA, United States, (4)USGS, Menlo Park, CA, United States, (5)Naval Research Laboratory, Stennis Space Ctr, MS, United States, (6)University of Alaska Fairbanks, Geology and Geophysics, Fairbanks, AK, United States, (7)University of Texas at Dallas, Geosciences, Richardson, TX, United States
 
Geomorphic Expression of Active Tectonics across the Indoburman Range (504000)
Patcharaporn Maneerat, University of California Berkeley, Berkeley, CA, United States and Roland Burgmann, Univ California Berkeley, Seismological Laboratory, Berkeley, CA, United States
 
When does slab fragmentation evolve into a STEP fault? The Kefalonia Transform Fault case study (505160)
Ali Ozbakir1, Rob Govers1 and Andreas Fichtner2, (1)Utrecht University, Department of Earth Sciences, Utrecht, Netherlands, (2)ETH Zurich, Department of Earth Sciences, Institute of Geophysics, Zurich, Switzerland
 
Deep and shallow interactions in retreating subduction zones. (505717)
Jessica Munch1, Kosuke Ueda2, Dave May3 and Taras Gerya1, (1)ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland, (2)ETH Zurich, Zürich, Switzerland, (3)University of Oxford, Oxford, United Kingdom
 
Seismic constraints on the hydrous state of the Tonga slab (506040)
Fan Wang and Songqiao Shawn Wei, Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States
 
Constraining the temperature conditions of paleo-subduction plate interfaces, Part I: Petrologic case study of the Rio San Juan Complex (Dominican Republic) (506148)
Kayleigh M Harvey1, Besim Dragovic2, Sarah Penniston-Dorland3, Ikuko Wada4, Xin Zhou4, Peter E van Keken5 and Robert J Bodnar6, (1)University of Maryland College Park, College Park, MD, United States, (2)University of South Carolina, Columbia, SC, United States, (3)University of Maryland, College Park, MD, United States, (4)University of Minnesota Twin Cities, Department of Earth Sciences, Minneapolis, MN, United States, (5)Carnegie Institution for Science, Department of Terrestrial Magnetism, Washington, DC, United States, (6)Virginia Tech, Blacksburg, VA, United States
 
Concave-outboard convergent margin geometry and modern oroclinal bending (509951)
Kristin D Morell, University of California Santa Barbara, Earth Science, Santa Barbara, CA, United States, Theron Finley, University of Victoria, Victoria, BC, Canada; University of Alberta, Edmonton, BC, Canada, Lucinda J Leonard, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada and Christine Regalla, Boston University, Department of Earth and Environment, Boston, MA, United States
 
Widespread hydration of the back arc and the link to variable hydration of the incoming plate in the Lesser Antilles. (510000)
Nicholas Harmon1, Catherine Rychert2, Benjamin Louis Maunder3, Saskia D B Goes3, Stephen Paul Hicks4,5, Andreas Rietbrock6, Jenny Collier3, Timothy Henstock2 and The VOILA Working Group, (1)University of Southampton, Ocean and Earth Science, Southampton, United Kingdom, (2)University of Southampton, Ocean and Earth Science, Southampton, SO14, United Kingdom, (3)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (4)University of Liverpool, Liverpool, United Kingdom, (5)Imperial College London, London, United Kingdom, (6)Karlsruhe Institute of Technology, Karlsruhe, Germany
 
Synconvergent Extension and the AD 365 earthquake: Implications for seismic and tsunami hazards in the eastern Mediterranean (514885)
Richard Ott, ETH Swiss Federal Institute of Technology Zurich, Geological Institute, Zürich, Switzerland, Sean Gallen, Colorado State University, Fort Collins, United States, Karl W Wegmann, North Carolina State Univ., Raleigh, NC, United States and Kosuke Ueda, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
 
Damage and segmentation of subducting plates by bending at the outer rise: evidence, model and implications (515309)
Taras Gerya, ETH Zurich, Department of Earth Sciences, Zurich, Switzerland, David Bercovici, Yale University, Geology & Geophysics, New Haven, CT, United States and Thorsten W Becker, University of Texas at Austin, Austin, TX, United States
 
Tectonic rotation of ophiolite metamorphic soles during exhumation in suprasubduction zone settings (519487)
Antony Morris1, Buğra Çavdar2, Mark W Anderson2, Luca Menegon3 and Osman Parlak4, (1)Plymouth University, Plymouth, PL4, United Kingdom, (2)Plymouth University, Plymouth, United Kingdom, (3)Plymouth University, School of Geography, Earth and Environmental Sciences, Plymouth, PL4, United Kingdom, (4)Cukurova University, Adana, Turkey
 
The seismic expression of hydration in the crust and mantle of the Cascadia margin (519663)
Jonathan R Delph, University of Oregon, Department of Earth Sciences, Eugene, OR, United States, Amanda Thomas, University of Oregon, Eugene, OR, United States and Alan Levander, Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States
 
Constraining the temperature conditions of paleo-subduction plate interfaces, Part II: Geodynamic modeling (520313)
Xin Zhou1, Ikuko Wada1, Sarah Penniston-Dorland2, Besim Dragovic3, Kayleigh M Harvey4 and Peter E van Keken5, (1)University of Minnesota Twin Cities, Department of Earth Sciences, Minneapolis, MN, United States, (2)University of Maryland, College Park, MD, United States, (3)University of South Carolina, Columbia, SC, United States, (4)University of Maryland College Park, College Park, MD, United States, (5)Carnegie Institution for Science, Department of Terrestrial Magnetism, Washington, DC, United States
 
On the paradox of very low differential stress causing permanent deformation in subduction zone forearcs (521243)
Kelin Wang, Geological Survey of Canada, Pacific Geoscience Centre, Sidney, BC, Canada, Yan Hu, University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China, Keisuke Yoshida, Tohoku University, Sendai, Japan and Lonn Nathaniel Brown, International Seismological Centre (ISC), Thatcham, United Kingdom
 
Geodynamic modelling of subduction beneath the Pamir-Hindu Kush region (522297)
Yu Yang1,2, Xiao Shuang1, Scott D King3 and Zuoxun Zeng4, (1)China University of Geosciences Wuhan, Wuhan, China, (2)Virginia Polytechnic Institute and State University, Blacksburg, United States, (3)Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, (4)China University of Geosciences, Wuhan, China
 
Initial wide-angle seismic results from the Seismogenesis at Hikurangi Integrated Research Experiment (SHIRE), North Island, New Zealand (523159)
Thomas Luckie1, Andrew Gase2, Katrina Jacobs3, Stuart A Henrys4, David A Okaya5, Harm J Van Avendonk6, Nathan L Bangs7, Daniel H N Barker4, Dan Bassett4, Shuichi Kodaira8, Ryuta Arai9, Gou Fujie10 and Yojiro Yamamoto9, (1)University of Southern California, Los Angeles, CA, United States, (2)Universiy of Texas at Austin, Austin, TX, United States, (3)GNS Science-Institute of Geological and Nuclear Sciences Ltd, Lower Hutt, New Zealand, (4)GNS Science, Lower Hutt, New Zealand, (5)Univ Southern California, Los Angeles, CA, United States, (6)University of Texas at Austin, Austin, TX, United States, (7)Univ Texas, Institute for Geophysics, Austin, TX, United States, (8)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (9)JAMSTEC, Yokohama, Japan, (10)R&D Center for Earthquake and Tsunami, JAMSTEC, Yokohama, Japan
 
Stratigraphy of Solander Trough records Puysegur subduction initiation, New Zealand (531779)
Rupert Sutherland, Victoria University of Wellington, SGEES, Wellington, New Zealand, Jiten Patel, Victoria University Wellington, School of Geography, Environment and Earth Sciences, Wellington, New Zealand and SISIE Scientific Team of voyage MGL1803
 
Forearc trench-parallel anisotropy above a subducting plate revealed by the S-net ocean-bottom seismometers (533552)
Naoki Uchida1, Junichi Nakajima2, Ryota Takagi1, Keisuke Yoshida1, Takashi Nakayama1, Ryota Hino1, Tomomi Okada1, Youichi Asano3 and Sachiko Tanaka3, (1)Tohoku University, Graduate School of Science, Sendai, Japan, (2)Tokyo Institute of Technology, Tokyo, Japan, (3)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan
 
Do subduction earthquakes influence slip rates on nearby major, transform faults? The Sulawesi case. (534182)
Wim J Simons1, Nicolai Nijholt2 and Riccardo Riva2, (1)Delft University of Technology, Space Engineering, Delft, Netherlands, (2)Delft University of Technology, Geoscience and Remote Sensing, Delft, Netherlands
 
Control of Plate Age at Trench on Subduction Dynamics and Surface Topography (534706)
Benjamin Guillaume and Thibault Duretz, Univ Rennes, CNRS, Géosciences Rennes - UMR 6118, Rennes, France
 
Tracking Volatiles Cycling at the Hikurangi Subduction Margin, North Island, New Zealand: An Integrated Geologic, Petrologic and Isotopic Approach (537229)
Gabe S Epstein1, Gray E Bebout1, Bruce W Christenson2, Hirochika Sumino3, Ikuko Wada4 and David R Hilton5, (1)Lehigh University, Dept. Earth and Environmental Sciences, Bethlehem, PA, United States, (2)GNS Science-Institute of Geological and Nuclear Sciences Ltd, National Isotope Centre, Lower Hutt, New Zealand, (3)Geochemical Research Center, Graduate School of Science, University of Tokyo, Tokyo, Japan, (4)Department of Earth Sciences, Minneapolis, MN, United States, (5)Univ California San Diego, La Jolla, CA, United States
 
High resolution seismic imaging of the Lesser Antilles incoming plate, outer rise and accretionary prism: Implications for the hydration of slow-spreading Atlantic lithosphere (540267)
Robert Allen1, Jenny Collier2, Timothy Henstock3, Richard Gareth Davy1 and The VoiLA Team, (1)Imperial College London, London, SW7, United Kingdom, (2)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (3)University of Southampton, Ocean and Earth Science, Southampton, SO14, United Kingdom
 
New Constraints of the Shallow Onshore Makran Subduction Zone Structure (541550)
Keith F Priestley1, Farhad Sobouti2, Raheel Mokhtarzadeh2, Mohsen Irandoust2, Tak Ming Ho1, Abdolreza Ghods2 and Khalil Motaghi2, (1)University of Cambridge, Cambridge, United Kingdom, (2)Institute for Advanced Studies in Basic Sciences, Zanjan, Iran
 
Partial Melting of a Depleted Peridotite Fluxed by a MORB-Derived Hydrous Silicate Melt – Implications for Subduction Zone Magmatism (548473)
Michael A Lara, Rice University, Houston, TX, United States and Rajdeep Dasgupta, Rice University, Department of Earth, Environmental, and Planetary Sciences, Houston, TX, United States
 
Journey to Subduction Zones: Microcontinents vs Oceanic Plateaus (549914)
Erkan Gün1, Russell Pysklywec1, Oguz Gogus2 and Gültekin Topuz2, (1)University of Toronto, Department of Earth Sciences, Toronto, ON, Canada, (2)Istanbul Technical University, Eurasia Institute of Earth Sciences, Istanbul, Turkey
 
Low vP/vS anomalies in Cascadia: mineralogy or porosity? (550018)
Alexandre P Plourde and Michael G Bostock, University of British Columbia, Vancouver, BC, Canada
 
Seismic Behavior of the Ryukyu Megathrust : Insights from Coral Microatolls (553551)
Sophie Debaecker1, Nathalie Feuillet1, Kenji Satake2, Kohki Sowa3, Masaki Yamada4, Atsushi Watanabe2, Mamoru Nakamura5, Chuan-Chou Shen6, Tsai-Luen Yu7, Jean-Marie Saurel1, Ayaka Saiki2 and Giovanni Occhipinti8, (1)Institut de Physique du Globe de Paris, Paris, France, (2)Earthquake Research Institute, The University of Tokyo, Tokyo, Japan, (3)Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (4)Shinshu University, Matsumoto, Japan, (5)Ryukyus University, Okinawa, Japan, (6)National Taiwan University, High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Taipei, Taiwan, (7)National Taiwan University, Research Center for Future Earth, Taipei, Taiwan, (8)Université de Paris, Institut de Physique du Globe de Paris, CNRS, Paris, France
 
The Fate of Fluids in Flat Slab Subduction - a look at Central Chile (555278)
Jessica Domino1, H Richard Naslund2 and Alex Nikulin1, (1)Binghamton University, Binghamton, NY, United States, (2)SUNY Binghamton, Binghamton, NY, United States
 
Attenuation structure in northeastern Japan inferred from characteristic observations of a high-frequency wave for intraslab earthquakes (560188)
Takahiro Shiina, The University of Tokyo, Earthquake Research Institute, Tokyo, Japan, Kei Katsumata, Hokkaido University, Institute of Seismology and Volcanology, Sapporo, Japan, Kiyoshi Yomogida, Hokkaido University, Graduate School of Science, Sapporo, Japan and Aitaro Kato, Earthquake Research Institute, The University of Tokyo, Tokyo, Japan
 
Lesser Antilles interplate seismicity: toward a reactivation of the 1839 rupture area? (563511)
Jordane Corbeau, Institut de Physique du Globe de Paris, Observatoire Volcanologique et Sismologique de la Martinique, Paris, France, Valerie Clouard, Université de Paris, Institut de Physique du Globe de Paris, Paris, France and The Team of the French Observatory of Martinique
 
Attempted Ultradeep Drilling to the Nankai Trough Subduction Zone Plate Boundary: The Saga of IODP NanTroSEIZE Expedition 358 (565933)
Harold J Tobin1, Takehiro Hirose2, Matt Ikari3, Kyuichi Kanagawa4, Gaku Kimura5, Masataka Kinoshita6, Hiroko Kitajima7, Demian M Saffer8, Asuka Yamaguchi9, Lena Maeda10, Sean Toczko10, Nobu Eguchi10 and IODP Expedition 358 Shipboard Scientific Party, (1)University of Washington Seattle Campus, Department of Earth and Space Sciences, Seattle, WA, United States, (2)JAMSTEC, Kochi Institute for Core Sample Research, Nankoku, Japan, (3)MARUM, University of Bremen, Bremen, Germany, (4)Chiba University, Earth Sciences, Chiba, Japan, (5)The University of Tokyo, Tokyo, Japan, (6)Japan Agy Marine Sci Tech, Nankoku Kochi, Japan, (7)Texas A&M University, Center for Tectonophysics and the Department of Geology & Geophysics, College Station, TX, United States, (8)Pennsylvania State University, University Park, PA, United States, (9)University of Tokyo, Kashiwa, Japan, (10)JAMSTEC, Yokohama, Japan
 
The stability of subducted glaucophane with the Earth’s secular cooling (566468)
Yoonah Bang1, Huijeong Hwang1, Taehyun Kim2, Hyunchae Cynn3, Haemyeong Jung4, Changyong Park5, Dmitry Popov6, Vitali B Prakapenka7, Hans-Peter Liermann8, Lin Wang9, Tetsuo Irifune10, Ho-kwang Mao9 and Yongjae Lee11, (1)Yonsei University, Earth System Sciences, Seoul, South Korea, (2)Yonsei University, Department of Earth System Sciences, Seoul, South Korea, (3)Lawrence Livermore National Laboratory, Livermore, CA, United States, (4)Seoul National University, Tectonophyscis Laboratory, Seoul, Korea, Republic of (South), (5)Geophysical Laboratory, Washington Dc, DC, United States, (6)Carnegie Inst. of Washington, Argonne, IL, United States, (7)University of Chicago, Center for Advanced Radiation Sources, Chicago, IL, United States, (8)DESY Deutsches Elektronen Synchrotron, Hamburg, Germany, (9)Center for High Pressure Science & Technology Advanced Research, Shanghai, China, (10)Ehime University, Matsuyama, Japan, (11)Yonsei University, Department of Earth System Sciences, Seoul, Korea, Republic of (South)
 
Numerical simulation on size and timing of crustal earthquakes during a megathrust earthquake cycle incorporating viscoelasticity (568181)
Tsukasa Mitogawa, Kyoto University, Kyoto, Japan and Takuya Nishimura, Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan
 
Development of high fluid pressure at the base of the shallow mantle wedge due to presence of an antigorite shear zone (568409)
Simon Richard Wallis, University of Tokyo, Bunkyo-ku, Japan and Mari Yokota, Nagoya University, Department of Earth and Planetary Sciences, Nagoya, Japan; The University of Tokyo, Department of Earth and Planetary Science, Tokyo, Japan
 
Fluid-driven element recycling during retrograde metamorphism following UHP metamorphism in the Western Gneiss Region, Norway (570003)
Danielle Ziva Shulaker, Stanford University, Stanford, CA, United States; University of Nevada Reno, Reno, CA, United States and Stacia M Gordon, University of Nevada Reno, Department of Geological Sciences and Engineering, Reno, NV, United States
 
Growth of the Andes: The role of sediment subduction in response to the migrating Juan Fernandez Ridge (571498)
Jiashun Hu, California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States, Lijun Liu, University of Illinois at Urbana-Champaign, Urbana, IL, United States and Michael Gurnis, California Institute of Technology, Seismological Laboratory and Division of Geological and Planetary Sciences, Pasadena, CA, United States
 
The development of 1D seismic velocity model and the intermediate depth seismicity analysis in the Indo-Burma Subduction zone, Myanmar (576246)
Hasbi Ash Shiddiqi1, Pa Pa Tun2 and Lars Ottemöller1, (1)University of Bergen, Bergen, Norway, (2)Department of Meteorology and Hydrology, Nay Pyi Taw, Myanmar
 
Lithospheric delamination beneath the southern Puna plateau revealed by local earthquake tomography (580406)
Xiaohui Yuan1, Jing Chen1,2, Sofia-Katerina Kufner1, Ben Heit1, Hao Wu2, Dinghui Yang2, Bernd Schurr1 and Suzanne Mahlburg Kay3, (1)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)Tsinghua University, Beijing, China, (3)Cornell University, Ithaca, NY, United States
 
Petrogenesis and Significance of Lawsonite-bearing Hybrid Rocks, Tavsanli Zone, NW Turkey (590421)
Katherine F Fornash, Ohio University, Athens, OH, United States and Donna L Whitney, University of Minnesota Twin Cities, Department of Earth and Environmental Sciences, Minneapolis, MN, United States
 
Small Cascadia Subduction Zone Earthquakes and Their Ties to Seismogenic Zone Heterogeneities (595654)
Emily Morton1, Susan L Bilek1 and Charlotte A Rowe2, (1)New Mexico Institute of Mining and Technology, Earth and Environmental Science, Socorro, NM, United States, (2)Los Alamos National Laboratory - LANL, Earth and Environmental Science, Los Alamos, NM, United States
 
Decoding Cenozoic Tectonics in Patagonia, the Scotia Sea, and the Antarctic Peninsula from New Seismic Tomography (600345)
Andrew Jason Lloyd, Washington University in St Louis, St. Louis, MO, United States, Ian Dalziel, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, Lawrence A Lawver, The University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, Douglas A Wiens, Washington University in St Louis, Department of Earth and Planetary Sciences, St. Louis, MO, United States, Hejun Zhu, The University of Texas at Dallas, Department of Geosciences, Richardson, TX, United States and Jeroen Tromp, Princeton University, Princeton, NJ, United States
 
Architecture and seismicity of Central American Volcanic Gap : is it subduction? (600478)
James Robert Bourke1, Vadim L Levin1, Ivonne Arroyo2 and Lepolt Linkimer2, (1)Rutgers University, Department of Earth and Planetary Sciences, Piscataway, NJ, United States, (2)University of Costa Rica, San Jose, Costa Rica
 
Using Vent Spatial Density to Explore Changes in the Distribution of Tholeiitic and Calc-Alkaline Magmatism at Medicine Lake Volcano, Cascade Back-Arc (612879)
Danielle D. Molisee1, Aurelie Germa2, Sylvain J Charbonnier2, Charles Connor3 and Laura Connor4, (1)University of South Florida Tampa, Geosciences, Tampa, FL, United States, (2)University of South Florida, Geosciences, Tampa, FL, United States, (3)University of South Florida, School of Geosciences, Tampa, FL, United States, (4)University of South Florida, Tampa, FL, United States
 
Three-Dimensional Structural Interpretation and Analysis of Spatial and Temporal Accretionary Wedge and Decollement Evolution, Nankai Subduction Zone, Kii-Kumano Region, SW Japan (628915)
Sarah E Bremmer, University of Wisconsin Madison, Madison, WI, United States and Harold J Tobin, University of Washington Seattle Campus, Department of Earth and Space Sciences, Seattle, WA, United States
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