T43F:
Structure and Dynamics of the Upper Mantle: Characterizing the Lithosphere–Asthenosphere System from Crust to Transition Zone IV Posters


Submit an Abstract to this Session


Session ID#: 49681

Session Description:
The lithosphere-asthenosphere system accommodates the motions of the lithospheric plates with respect to the underlying mantle. It is characterized by some of the largest gradients in physical properties found in the Earth’s deep interior. These strong contrasts in properties often do not arise from static structures or a single dominant process but rather evolve from the complex interplay between geodynamic processes and tectonic forces. In this session we welcome research contributions that explore the structure and dynamics of lithospheric and asthenospheric upper mantle across a range of tectonic settings (oceans, continents, rifts, margins, etc) and length scales (local to regional, continental, and global-scales) utilizing techniques and datasets from diverse fields, including but not limited to, seismology, electromagnetics, gravity, geodesy, geodynamic modeling, petrology/mineralogy, and mineral physics.
Primary Convener:  Claire A Currie, University of Alberta, Department of Physics, Edmonton, AB, Canada
Conveners:  Vedran Lekic, University of Maryland, Department of Geology, College Park, United States, Jolante van Wijk, New Mexico Institute of Mining and Technology, Earth & Environmental Science, Socorro, United States and Andrew J Schaeffer, University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada
Primary Liaison:  Andrew J Schaeffer, University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada
Chairs:  Andrew J Schaeffer, Dublin Institute for Advanced Studies, Dublin, Ireland and Vedran Lekic, University of Maryland, Department of Geology, College Park, United States
OSPA Liaison:  Claire A Currie, University of Alberta, Department of Physics, Edmonton, AB, Canada
Co-Organized with:
Tectonophysics, Seismology, and Study of Earth's Deep Interior

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

Proposed Co-Organized Session with:
  • DI - Study of Earth's Deep Interior
  • S - Seismology
Index Terms:

7208 Mantle [SEISMOLOGY]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]
8125 Evolution of the Earth [TECTONOPHYSICS]
8159 Rheology: crust and lithosphere [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Imaging shear wave velocity structure of the lithospheric mantle in southeast Canada and the northeast USA. (361111)
Omid Bagherpur Mojaver, University of Quebec at Montreal UQAM, Montreal, QC, Canada and Fiona Ann Darbyshire, University of Quebec at Montreal UQAM, Centre de recherche GEOTOP, Montreal, QC, Canada
Geophysical constraints on the Cascadia backarc mantle structure, southwestern Canada (366195)
Tai-Chieh Yu, Claire A Currie and Martyn Jonathan Unsworth, University of Alberta, Department of Physics, Edmonton, AB, Canada
Regional variations in crustal seismic attenuation across Canada from Lg waveform analysis (385441)
Claire Perry, Canadian Hazards Information Service, Natural Resources Canada, Ottawa, ON, Canada and Allison L. Bent, Natural Resources Canada, Ottawa, ON, Canada
New Images of upper mantle structure beneath western Canada from teleseismic body-wave tomography (386810)
Clément Esteve1, Andrew J Schaeffer2 and Pascal Audet1, (1)University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada, (2)Geological Survey of Canada, Pacific Division, Sidney, ON, Canada
Mapping multi-mode phase speeds of surface waves in North America with array-based dispersion analysis using USArray (424781)
Hitoshi Matsuzawa, Hokkaido University, Sapporo, Japan and Kazunori Yoshizawa, Hokkaido University, Dept of Earth & Planetary Sciences, Faculty of Science, Sapporo, Japan
Seismic evidence of the lithosphere-asthenosphere boundary in the young Juan de Fuca plate (441095)
Yanfang Qin, Institut de Physique du Globe de Paris, Paris, France, Satish Chandra Singh, Institut de Physique du Globe de Paris, Université Paris-Cité, Paris, France and Ingo Grevemeyer, GEOMAR, Kiel, Germany
Evidence for Partial Melt in the Northern Appalachian Anomaly (416099)
Michael Pirrie, Fairfield, CT, United States and William H Menke, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Upper Mantle P wave Attenuation Tomography Beneath the Southeastern United States (448988)
Ashutosh Shrivastava, Missouri University of Science and Technology, Geology and Geophysics Program, Rolla, MO, United States, Kelly Hong Liu, Missouri University of Science and Technology, Earth Sciences and Engineering, Rolla, MO, United States and Stephen S Gao, Missouri University of Science and Technology, Earth Sciences and Engineering, Rolla, United States
Ps mantle transition zone imaging beneath the Colorado Rocky Mountains: Evidence for an upwelling hydrous mantle (353483)
Zhu Zhang1, Ken George Dueker2 and Hsin-Hua Huang1, (1)Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan, (2)University of Wyoming, Department of Geology and Geophysics, Laramie, WY, United States
Imaging Structure beneath East Central United States Using CCP Stacking and Scattering Kernel Analysis of Ps and Sp Receiver Functions (354684)
Sizhuang Deng, Rice University, Department of Earth, Environmental and Planetary Sciences, Houston, TX, United States, Alan Levander, Rice University, Earth, Environmental and Planetary Sciences, Houston, United States and Steven Hansen, Macquarie University, Department of Earth and Planetary Sciences, Sydney, Australia
The Northern Gulf Anomaly: characterizing asthenospheric upwelling at a continental edge using seismic velocity perturbations (364454)
Zoe Krauss, Colorado College, Colorado Springs, CO, United States and William H Menke, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Toward a joint inversion of Rayleigh wave phase velocity, site amplification, and ellipticity measurements for a 3-D shear-velocity model of the U.S. (371670)
Jordyn C Babikoff, Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States and Colleen A Dalton, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States
Radially anisotropic shear wave velocity structure beneath eastern North America from surface wave tomography (421814)
Zhongmin Tao and Aibing Li, University of Houston, EAS, Houston, TX, United States
Improved Tomography of the Columbia River Flood Basalts and Central Idaho Regions Reveals New Geometries for the Fast Anomalies in the Upper Mantle (456110)
Christian Stanciu, University of Oregon, Eugene, OR, United States, Eugene Humphreys, Univ Oregon, Eugene, OR, United States and Robert W Clayton, California Institute of Technology, Pasadena, CA, United States
S-wave Relative Travel Time Tomography for Mantle Structure Beneath East Asia. (361781)
Yong Woo KIM, Kangwon National University, Chuncheon, Korea, Republic of (South), Sung-Joon Chang, Kangwon National University, Chuncheon, South Korea, Jieyuan Ning, Peking University, Beijing, China and Jingchong Wen, Peking Univ, Beijing, China
Crustal rheology of southern Tibet constrained from lake-induced viscoelastic deformation (429044)
Maxime Henriquet, Géosciences Montpellier, Montpellier Cedex 05, France, Jean-Philippe Avouac, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States and Bruce G Bills, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Seismic evidence for craton reworking at Ordos block (459861)
Zhen Guo1, Shilin LI2 and Yongshun John Chen1, (1)Southern University of Science and Technology, Department of Ocean Science and Engineering, Shenzhen, China, (2)ITAG Institute of Theoretical and Applied Geophysics, Peking University, Beijing, China
Lower Crust High Velocity Layer's Relationship with Magmatic Activity of Nansha block，South China Sea (463933)
Kai Li1, Chuanbo Shen2, Xiaojun Xie3, Zhigang Zhao3, Peng Xi1 and Yanbing Zhou4, (1)China University of Geosciences Wuhan, Wuhan, China, (2)China University of Geosciences, Key Laboratory of Tectonics and Petroleum Resources of the Ministry of Education, Wuhan, China, (3)China National Offshore Oil Corporation Ltd., Beijing, China, (4)China University of Geosciences, Wuhan, China
Upper Mantle Velocity Structure from Rayleigh-wave Phase Velocity Tomography Beneath the Northern Ordos block, North China (362058)
Zhixiang Yao, IGP Institute of Geophysics, China Earthquake Administration, Beijing, China, Chunyong Wang, Institute of Geophysics, China Earthquake Administration, Beijing, China and Eric A Sandvol, University of Missouri, Department of Geological Sciences, Columbia, United States
3D full waveform inversion for crust velocity in Nanling, South China (402559)
Changrong Zhang1, Guoming Jiang1 and Guibin Zhang2, (1)China University of Geosciences, Beijing, Beijing, China, (2)China University of Geosciences, Beijing, School of Geophysics and Information Technology, Beijing, China
A Study of Crust-mantle Transition Zone Based on Pn Waveforms: Application to Tectonic Affinity Between Eastern China and southern Korean Peninsula (425015)
Shiban Ding, University of Science and Technology of China, Hefei, China, Sidao Ni, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China, Younghee Kim, Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South) and Xiaohui He, School of Earth Sciences and Engineering, Guangzhou, China
Seismic Constraints on Erosion and Breakup of the Continental Lithosphere at the Eastern Margin of Eurasian Plate, and an Implication of Intraplate Volcanism (468482)
Seongryong Kim1, Jung-Hun Song2, Benoit Tauzin3, Junkee Rhie2 and Hrvoje Tkalčić4, (1)Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South), (2)Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, (3)Université de Lyon, Laboratoire de Géologie deLyon : Terre, Planètes et Environnement, Villeur, France, (4)Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia
Seismic constraints on the thermal structure of the Italian crust (431329)
Giovanni Diaferia, Third University of Rome, Rome, Italy, Fabio Cammarano, University of Copenhagen, København K, Denmark, Nicola Piana Agostinetti, Dublin Institute for Advanced Studies, Dublin, Ireland, Vedran Lekic, University of Maryland, Department of Geology, College Park, United States, Chao Gao, University of Maryland College Park, Dept. of Geology, College Park, MD, United States and Irene Molinari, Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy
High resolution 3-D isotropic Rayleigh wave velocity model across the Alpine-Mediterranean mobile belt (356912)
Amr Mohammed Mahmoud Elsayed El-Sharkawy1,2, Thomas Meier3, Sergei Lebedev4, Mona Hamada5, Luigia Cristiano6, Christian Weidle7 and Daniel Koehn3, (1)National Research Institute of Astronomy and Geophysics, Helwan, Egypt, (2)University of Kiel, Institute of Geo sciences, Kiel, Germany, (3)Kiel University, Institute of Geosciences, Kiel, Germany, (4)University of Cambridge, Cambridge, United Kingdom, (5)National Research Institute of Astronomy and Geophysics, Cairo, Egypt, (6)University of Kiel, Kiel, Germany, (7)University of Kiel, Institute of Geo Sciences, Kiel, Germany

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