DI23B:
Subducting Slabs in the Mantle III Posters


Submit an Abstract to this Session


Session ID#: 48780

Session Description:
Subducting slabs are the primary source for chemical and thermal heterogeneity within the Earth's mantle. Their sinking dynamics is key in Earth's mass and heat transport since they drive the bulk downgoing flow in global mantle convection. Constraining the dimensions and physical properties (chemistry, temperature, mechanical resistance) of slabs is therefore crucial for insights into the overall evolution and dynamics of the Earth's interior. 

In this session, some key areas of interest are slab geometries and thermal structures, slab rheology and deformation, intra-slab seismicity, fine-scale seismic structures of slab, chemistry budget for transport of surface elements to the deep mantle, slab dynamics in both upper and lower mantle, and linking slabs to the geologic surface records of their subduction.

We welcome contributions from a wide range of disciplines including seismology, mineral and rock physics, petrology, geochemistry, tectonics and geodynamics.
Primary Convener:  Karin Sigloch, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
Conveners:  Zhongwen Zhan, CalTech Seismological Laboratory, Pasadena, CA, United States, Fanny Garel, CNRS & Univ. Montpellier, Géosciences Montpellier, Montpellier Cedex 05, France and Sylvie Aude Demouchy, CNRS & Univ. Montpellier, Géosciences Montpellier, Montpellier, France
Primary Liaison:  Zhongwen Zhan, CalTech Seismological Laboratory, Pasadena, CA, United States
Chairs:  Zhongwen Zhan, California Institute of Technology, Pasadena, United States and Fanny Garel, CNRS & Univ. Montpellier, Géosciences Montpellier, Montpellier, France
OSPA Liaison:  Fanny Garel, CNRS & Univ. Montpellier, Géosciences Montpellier, Montpellier, France
Co-Organized with:
Study of Earth's Deep Interior, Mineral and Rock Physics, Seismology, and Tectonophysics

Cross-Listed:
  • MR - Mineral and Rock Physics
  • S - Seismology
  • T - Tectonophysics
  • V - Volcanology, Geochemistry and Petrology

Proposed Co-Organized Session with:
  • MR - Mineral and Rock Physics
  • S - Seismology
  • T - Tectonophysics
Index Terms:

7208 Mantle [SEISMOLOGY]
8130 Heat generation and transport [TECTONOPHYSICS]
8162 Rheology: mantle [TECTONOPHYSICS]
8170 Subduction zone processes [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Global subduction dynamics: links between slab dip angles, dynamic pressure, and lower mantle mass flux (466760)
Adam Holt and Leigh Royden, Massachusetts Institute of Technology, Cambridge, MA, United States
The Decoupling Depth and Slab Thermal Structure (438049)
Benjamin Louis Maunder, Imperial College London, London, United Kingdom, Saskia D B Goes, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, Jeroen Van Hunen, University of Durham, Department of Earth Sciences, Durham, United Kingdom, Julie Prytulak, University of Durham, Durham, United Kingdom, Valentina Magni, University of Oslo, CEED, Oslo, Norway and Pierre Bouilhol, Université de Lorraine, Centre de Recherches Pétrographiques et Géochimiques, Nancy, France
Anisotropy in the lowermost mantle beneath the Indian Ocean Geoid Low: Insights from ScS splitting measurements (366313)
Padma Rao B, ESSO-National Centre for Earth Science Studies, Ministry of Earth Sciences, Govt. of India, Thiruvananthapuram, India and Ravi Kumar, N.G.R.I., Hyderabad, India
Constrain the fine-scale velocity structure with numerical modeling of high-frequency guided waves in the eastern Alaskan subduction zone (343307)
Xiaoyu Guan1, Yuanze Zhou1 and Takashi Furumura2, (1)University of Chinese Academy of Sciences, Beijing, China, (2)ERI, Univ. Tokyo, Bunkyo-Ku, Japan
Evidence for a Lithospheric Fragment Beneath Klyuchevskoy Volcano From Seismic Data of Local and Teleseismic Earthquakes (463469)
James Robert Bourke, Rutgers University New Brunswick, Department of Earth and Planetary Sciences, New Brunswick, United States, Alex Nikulin, Binghamton University, Department of Geological Sciences and Environmental Studies, Binghamton, United States, Jeffrey J Park, Yale University, Earth & Planetary Sciences, New Haven, CT, United States and Vadim L Levin, Rutgers University, Earth and Planetary Sciences, Piscataway, United States
2-D Inversion of USArray Megnetotelluric Data from Western North-America (406607)
Mohammad Shehata, Port Said University, Geology, Port Said, Egypt; Geology Department ,Faculty of Science, Port Said University, Port Said, Egypt and Hideki Mizunaga, Kyushu University, Earth Resources Engineering, Fukuoka, Japan
Different uplifts of the 410 km discontinuity caused by cold subducted slabs beneath the Hindu Kush-Pamir region (367488)
Qinghui Cui1, Yuanze Zhou2, Rongqiang Wei1, Guohui Li3 and Wenlan Li2, (1)UCAS University of Chinese Academy of Sciences, Beijing, China, (2)University of Chinese Academy of Sciences, Beijing, China, (3)ITP Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China
Mantle heterogeneity across the Andean subduction zone from finite-frequency teleseismic S-wave tomography (402560)
Emily E Rodriguez, University of Arizona, Tucson, United States, Daniel Evan Portner, University of Arizona, Tucson, AZ, United States, Susan L Beck, University of Arizona, Department of Geosciences, Tucson, AZ, United States, Marcelo Peres Rocha, OBSIS Seismological Observatory of the University of Brasília, Brasilia, Brazil and Marcelo Assumpcao, IAG-USP Cidade Univ, Geophysics, Sao Paulo, Brazil
Slab strength and trench length influence lowermost mantle flow directions (370272)
Dr. Jiaxin Zhang and Allen K McNamara, Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States
Subducting slab and mantle transition zone interaction: mode selection and deep water recycling (372817)
Zhong-Hai Li, University of Chinese Academy of Sciences, Key Laboratory of Computational Geodynamics, College of Earth Sciences, Beijing, China
Can a subducted sedimentary layer survive into the deep mantle? Maybe, if it is strong or thin. (454967)
James K. Muller1, Joe Schools2, Kiran Chotalia3, Erik Christopher Weidner4, Jenna Adams5, Magali I Billen6, Louis Noel Moresi7, Meghan Samanth Miller8, Lauren Waszek8,9, Thorsten W Becker10, Carolina R Lithgow-Bertelloni11, Lars P Stixrude11 and Dominique Weis12, (1)Harvard University, Earth & Planetary Sciences, Cambridge, MA, United States, (2)University of Maryland College Park, College Park, MD, United States, (3)University College London, London, United Kingdom, (4)University of California Los Angeles, Los Angeles, CA, United States, (5)University of California Santa Barbara, Santa Barbara, CA, United States, (6)University of California Davis, Department of Earth and Planetary Sciences, Davis, United States, (7)University of Melbourne, Parkville, VIC, Australia, (8)Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, (9)New Mexico State University, Las Cruces, United States, (10)University of Texas at Austin, Jackson School of Geosciences, Austin, TX, United States, (11)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, (12)University of British Columbia, PCIGR, Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada
Eikonal equation-based teleseismic traveltime tomography of Sumatra (388175)
Shaolin Liu, Nanyang Technological University, Singapore, Singapore, Ping Tong, University of Toronto, Toronto, ON, Canada; Nanyang Technological University, Division of Mathematical Sciences, School of Physical and Mathematical Sciences, Singapore, Singapore and Suardi Suardi, Indonesia State College of Meteorology, Climatology, and Geophysics, Department of Geophysics, Banten, Indonesia
Magnitude of the Buoyancy Forces Associated with the 410- and 660-km Discontinuities as a Function of Slab Dip Angle (452348)
Siobhan Mary Campbell, Syracuse University, Syracuse, NY, United States and Robert Moucha, Syracuse University, Earth and Environmental Sciences, Syracuse, United States
New insights on the role of olivine dislocation creep rheology in subduction dynamics models (352656)
Fanny Garel1, Catherine Thoraval2, Sylvie Aude Demouchy3, Andrea Tommasi4, Karine Gouriet5, Patrick Cordier5, Philippe Carrez6 and Rhodri Davies7, (1)CNRS & Univ. Montpellier, Géosciences Montpellier, Montpellier Cedex 05, France, (2)University of Montpellier II, Montpellier Cedex 05, France, (3)CNRS & Univ. Montpellier, Géosciences Montpellier, Montpellier, France, (4)Univ Montpellier & CNRS, Géosciences Montpellier, Montpellier, France, (5)Université de Lille, UMET, Villeneuve d'Ascq, France, (6)University of Lille, Villeneuve d'Ascq, France, (7)Australian National University, Research School of Earth Sciences, Canberra, Australia
Slab geometry in double inward dipping subduction (383082)
Tianyang Lyu, Zhiyuan Zhu and Benjun Wu, Nanjing University, School of Earth Sciences and Engineering, Nanjing, China
The effect of multiple subducting slabs on edge-driven convection: Implications for the origin of Jeju Island, Korea (463241)
Daehee Kim, Kangwon National University, Chuncheon, Korea, Republic of (South) and Byung-Dal So, Kangwon National University, Geophysics, Chuncheon, Gangwon-do, South Korea
Two-dimensional finite element modeling of slab detachment using Arbitrary Lagrangian-Eulerian method: The physical possibility of slab tear beneath the East Sea (Japan Sea) (464031)
Seung Hyun Lee, Kangwon National University, Chuncheon, Korea, Republic of (South) and Byung-Dal So, Kangwon National University, Geophysics, Chuncheon, Gangwon-do, South Korea
The cause of slab stagnation in mantle transition zone and its effects on the dynamics of the mantle (354869)
Wei Mao, University of Colorado at Boulder, Boulder, United States and Shijie Zhong, University of Colorado at Boulder, Department of Physics, Boulder, United States
Mantle melting and intraplate volcanism due to upwellings from the stagnant slab (380087)
Xiaogang Long, Tongji University, Shanghai, China, Maxim Ballmer, University College London, ETH Zürich, London, United Kingdom and Antonio Manjón-Cabeza Córdoba, Univ. Oslo, CEED, Oslo, Norway
Deep slab flattening and temporary stagnation within the lower mantle transition zone (429755)
Antoniette Greta Grima, University of Texas at Austin, Institute of Geophysics, Austin, United States, Carolina R Lithgow-Bertelloni, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States and Fabio Crameri, University of Oslo, Centre for Earth Evolution and Dynamics (CEED), Oslo, Norway

See more of: Study of Earth's Deep Interior