DI013
Structure and Evolution of the Oceanic Lithosphere and Mantle --- I Observations
Session ID#: 82472
Session Description:
The oceans represent the majority of the Earth’s surface, but because they are inhospitable and not easily accessible, data from the marine environment remains sparse. This sampling problem has limited our understanding of fundamental solid-earth processes, from localized submarine volcanism to global-scale mantle convection. New technologies and techniques continue to enhance our ability to gather geophysical data from the seafloor as well as the open ocean, making this an exciting frontier as we embark on the next hundred years of Earth and Space Science research. We invite contributions that incorporate observations from the oceans and the seafloor, emphasizing in particular oceanic mantle tomographic and geodynamic models, intra-plate geodynamics, volcanism, and seismicity, subduction zone seafloor geodesy and seismology, oceanic crustal/lithospheric structure, and chemical and physical interactions between the ocean, crust, lithosphere, asthenosphere, and deep mantle.
Index Terms:
3006 Marine electromagnetics [MARINE GEOLOGY AND GEOPHYSICS]
3025 Marine seismics [MARINE GEOLOGY AND GEOPHYSICS]
3075 Submarine tectonics and volcanism [MARINE GEOLOGY AND GEOPHYSICS]
Primary Convener: William Bythewood Hawley, University of California Berkeley, Berkeley, CA, United States; Lamont -Doherty Earth Observatory, Palisades, NY, United States
Conveners: Zachary Eilon, University of California Santa Barbara, Santa Barbara, CA, United States and Hiroko Sugioka, Kobe University, Hyogo, Japan
Primary Liaison: Zachary Eilon, University of California Santa Barbara, Santa Barbara, CA, United States
First characterization of the volcanism in the southern Mozambique Channel. (492012)
Carole Berthod1, Patrick Bachelery2, Stephan Jorry3, Mathilde Pitel-Roudaut3, Régis Doucelance4, Sidonie Revillon5 and Esther Bou2, (1)Laboratoire Magmas et Volcans, Clermont-Ferrand Cedex, France, (2)University Blaise Pascal Clermont-Ferrand II, Clermont-Ferrand, France, (3)IFREMER, Plouzané, France, (4)Laboratoire Magmas et Volcans, Unviersité Blaise Pascal, Clermont-Ferrand, France, (5)IFREMER, Brest, France
Seismic tomography identifying the interaction of oceanic and continental lithosphere along the southern California coastal margin from the ALBACORE amphibious array (495940)
Marshal David McGurk1, Kaitlyn Amodeo1, Sampath Rathnayaka1, Lennin Escobar Sr2, Monica D Kohler3 and Dayanthie S Weeraratne1, (1)California State University Northridge, Northridge, CA, United States, (2)California State University Northridge, Capitola, CA, United States, (3)Caltech, Pasadena, CA, United States
Sediment Structure at the Equatorial Mid-Atlantic Ridge Constrained by Seafloor Admittance using data from the PI-LAB experiment (498736)
Utpal Saikia1, Catherine Rychert2, Nicholas Harmon2, J Michael Kendall3 and Catherine Rychert, Nicholas Harmon, and J.M. Kendall, (1)University of Southampton, Southampton, SO14, United Kingdom, (2)University of Southampton, Ocean and Earth Science, Southampton, United Kingdom, (3)University of Bristol, School of Earth Sciences, Bristol, United Kingdom
Shear wave upper mantle structure beneath the Ontong Java Plateau (504158)
Takehi Isse1, Daisuke Suetsugu2, Akira Ishikawa3, Hajime Shiobara1, Hiroko Sugioka4, Aki Ito2, Yuki Kawano1, Kazunori Yoshizawa5, Yasushi Ishihara2, Satoru Tanaka2, Masayuki Obayashi2, Takashi Tonegawa2, Junko Yoshimitsu2 and Takumi Kobayashi4, (1)The University of Tokyo, Tokyo, Japan, (2)Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (3)Tokyo Institute of Technology, Earth and Planetary Sciences, Tokyo, Japan, (4)Kobe University, Hyogo, Japan, (5)Hokkaido University, Department of Earth & Planetary Sciences, Faculty of Science, Sapporo, Japan
Surface-wave constraints on upper mantle petrofabric and flow beneath ~40 Ma seafloor in the south Pacific (508456)
Joshua B Russell, LDEO - Columbia University, Palisades, NY, United States, James B Gaherty, Columbia University in the City of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Zachary Eilon, Lamont -Doherty Earth Observatory, Palisades, NY, United States, Donald W Forsyth, Brown Univ, Providence, RI, United States and Goran Ekstrom, Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States
Probabilistic characterization of a melt-rich channel at the base of the Cocos Plate (Invited) (510049)
Daniel Burnett Blatter1, Samer Naif1, Kerry Key2 and Anandaroop Ray3, (1)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (2)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (3)Scripps Institution of Oceanography, La Jolla, CA, United States
Data-oriented constraint on the interpretation of S receiver function and its application to observations of seismic discontinuities in the lithosphere-asthenosphere system (511745)
Xuzhang Shen1, Younghee Kim2, Teh-Ru Alex Song3 and Hobin Lim2, (1)Sun Yat-Sen University, Guangzhou, China, (2)Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, (3)University College London, Department of Earth Sciences, London, United Kingdom
Inversion of Longer Period OBS Waveforms for P Structures in the Oceanic Lithosphere and Asthenosphere (513152)
Nozomu Takeuchi1, Hitoshi Kawakatsu1, Hajime Shiobara1, Takehi Isse1, Hiroko Sugioka2, Aki Ito3 and Hisashi Utada1, (1)Earthquake Research Institute, The University of Tokyo, Tokyo, Japan, (2)Kobe University, Hyogo, Japan, (3)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
One Year, Fifteen Hundred MERMAID Seismograms from the South Pacific (Invited) (516605)
Joel D Simon, Princeton University, Geosciences, Princeton, NJ, United States, Frederik Simons, Princeton University, Princeton, NJ, United States, Guust Nolet, Princeton University, Princeton, United States; Université Côte d'Azur/CNRS/OCA/IRD, GéoAzur, Sophia Antipolis, France, Yann Hello, Université Côte d'Azur/CNRS/OCA/IRD, GéoAzur, Valbonne, France, Hiroko Sugioka, Kobe University, Hyogo, Japan, Masayuki Obayashi, Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan and Yongshun John Chen, SUSTech, Department of Ocean Science and Engineering Southern University of Science and Technology, Shenzhen, China
P-wave upper mantle structures beneath the Ontong Java Plateau (526202)
Masayuki Obayashi1, Junko Yoshimitsu2, Daisuke Suetsugu3, Hajime Shiobara4, Hiroko Sugioka5, Aki Ito1, Takehi Isse6, Yasushi Ishihara7, Satoru Tanaka3, Takashi Tonegawa8 and Takumi Kobayashi5, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (3)JAMSTEC, Yokosuka, Japan, (4)The University of Tokyo, Tokyo, Japan, (5)Kobe University, Hyogo, Japan, (6)The Univ. of Tokyo, Tokyo, Japan, (7)JAMSTEC, Yokohama, Japan, (8)JAMSTEC, Research Institute for Marine Geodynamics, Yokohama, Japan
Array analysis of OBS recordings at Ontong Java Plateau: Preliminary analysis via seismic interferometry (532191)
Yuki Kawano1, Takehi Isse1, Akiko Takeo1, Hitoshi Kawakatsu1, Daisuke Suetsugu2, Hajime Shiobara1, Hiroko Sugioka3, Aki Ito2, Yasushi Ishihara2, Satoru Tanaka2, Masayuki Obayashi2, Takashi Tonegawa2, Junko Yoshimitsu2 and Takumi Kobayashi3, (1)Earthquake Research Institute, University of Tokyo, Tokyo, Japan, (2)Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (3)Kobe University, Hyogo, Japan
One-step waveform inversion of ScS reverberations for the Gutenberg discontinuity (534952)
Jumpei Maruyama, Earthquake Research Institute, University of Tokyo, Tokyo, Japan, Hitoshi Kawakatsu, Earthquake Research Institute, The University of Tokyo, Tokyo, Japan and Nozomu Takeuchi, Univ of Tokyo, Ocean Hemisphere Research Center, Tokyo, Japan
Joint Inversion of Body and Surface Waves to Determine the Structure of Lithosphere and the Underlying Asthenosphere from the PI-LAB Experiment at the Equatorial Mid-Atlantic Ridge (535909)
Petros Bogiatzis1, Nicholas Harmon2, Catherine Rychert2, David Schlaphorst3, Stephen Paul Hicks4 and J Michael Kendall3, (1)University of Southampton, Southampton, SO14, United Kingdom, (2)University of Southampton, Ocean and Earth Science, Southampton, United Kingdom, (3)University of Bristol, School of Earth Sciences, Bristol, United Kingdom, (4)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom
Alteration of the Pacific Lithosphere and Asthenosphere by the Hawaiian Hotspot: A Re-Examination (545755)
Donald W Forsyth, Brown University, Earth, Environmental, and Planetary Sciences, Providence, RI, United States, Kai-Xun Chen, Department of Geosciences, National Taiwan University, Taipei, Taiwan and Gwen Gardner, Cornell University, Physics Department, Ithaca, NY, United States
