DI012
Seismic anisotropy from surface to core
Session ID#: 246737
Session Description:
Seismic anisotropy provides key constraints on Earth's interior deformation history. It can be measured using various seismological techniques, while mineral physics experiments, geodynamic models, and field observations help interpret these measurements in terms of present and past deformation and flow. Growing seismological datasets and methodological improvements have enabled more detailed investigations of crustal and lithospheric faulting and deformation, subduction dynamics, mantle circulation, and core-mantle boundary and inner core processes. Interpretations of these measurements benefit from increasingly robust constraints on the rheology and elastic properties of Earth's interior under shallow to extreme pressure and temperature conditions. At the same time, computational advances allow geologic processes to be modeled at unprecedented resolution, facilitating direct comparison with observations. We encourage contributions from all fields that enhance our understanding of Earth’s dynamics through seismic anisotropy.
Co-Sponsor(s):
Index Terms:
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]
8121 Dynamics: convection currents, and mantle plumes [TECTONOPHYSICS]
8124 Earth's interior: composition and state [TECTONOPHYSICS]
Primary Convener: Jonathan Wolf, University of California Berkeley, Berkeley, CA, United States
Conveners: Daniel Andrew Frost, University of South Carolina, School of Earth, Ocean and Environment, Columbia, United States, Vera Schulte-Pelkum, Univ Colorado Boulder, Boulder, United States and Thorsten W Becker, University of Texas at Austin, Jackson School of Geosciences, Austin, United States
Imaging fluids and stress at Etna volcano with probabilistic P-wave anisotropic travel-time tomography (Invited) (1852004)
Gianmarco Del Piccolo1, Brandon VanderBeek2, Manuele Faccenda1, Rosalia Lo Bue3, Ornella Cocina3, Marco Firetto Carlino3, Elisabetta Giampiccolo3, Luciano Scarfi4, Francesco Rappisi5, Taras Gerya6 and Andrea Morelli7, (1)University of Padova, Department of Geosciences, Padova, Italy, (2)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (3)Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Catania, Italy, (4)Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Catania, Italy, Catania, Italy, (5)European Center for Geodynamics and Seismology, Walferdange, Luxembourg, (6)ETH Zurich, Department of Earth and Planetary Sciences, Zurich, Switzerland, (7)Istituto Nazionale di Geofisica e Vulcanologia, Bologna, Italy
Distinct Lithospheric Anisotropic Fabrics Across Southwestern Australia and the Yilgarn Craton Revealed by Phase 1 of the WA Array (1863301)
Miriam Gauntlett1, Caroline M Eakin1, Nitarani Bishoyi1, John Paul O'Donnell2, Ruth Murdie2, Meghan Samanth Miller1, Robert Pickle1, Ping Zhang1 and Reza Ebrahimi2, (1)Australian National University, Canberra, ACT, Australia, (2)Geological Survey of Western Australia, East Perth, Australia
Lowermost mantle anisotropy beneath Eastern Asia from SKS-SKKS splitting intensity discrepancies and its implications for Earth’s evolution (1876412)
Samuel Celis1, Tae-Kyung Hong2, Junhyung Lee2, Seongjun Park2, Byeongwoo Kim2, Jeongin Lee2, Dong Geon KIM2 and Yanbing Liu1, (1)Yonsei University, Seoul, Korea, Republic of (South), (2)Yonsei University, Earth System Sciences, Seoul, South Korea
Crustal Anisotropy Monitoring at Kīlauea Volcano with Machine Learning Based Shear Wave Splitting Analyses (1881792)
Qichao Zhao1, Yanwei Zhang2, Kelly Hong Liu3 and Stephen S Gao1, (1)Missouri University of Science and Technology, Earth Sciences and Engineering, Rolla, United States, (2)Kansas Geological Survey, Lawrence, United States, (3)Missouri University of Science and Technology, Earth Sciences and Engineering, Rolla, MO, United States
Influence of Subduction History and Mineral Deformation on Seismic Anisotropy in the Lower Mantle (1883026)
Mo Hu, California Institute of Technology, Pasadena, CA, United States, Michael Gurnis, California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States and Jennifer M Jackson, California Institute of Technology, Seismological Laboratory, Pasadena, United States
Investigating crustal anisotropy using local earthquake shear wave splitting in central and eastern Nepal (1891913)
Mita Uthaman, Florida International University, Miami, FL, United States, Niptika Jana, Indian Institute of Technology (Indian School of Mines) Dhanbad, Department of Applied Geophysics, Dhanbad, India and Gaurav Kumar, Indian Institute of Technology Kharagpur, Department of Geology and Geophysics, Kharagpur, India
Model-Predicted Shear-Wave-Splitting Parameters in NE Japan: Comparison with Observations (1894745)
Ikuko Wada1, Lindsey M Kenyon1, Junichi Nakajima2 and Naoki Uchida3, (1)University of Minnesota Twin Cities, Minneapolis, United States, (2)Institute of Science Tokyo, Meguro, Japan, (3)University of Tokyo, Bunkyo, Japan
Seismic Azimuthal Anisotropy across the Anatolian Plate (1896451)
Chuanming Liu, University of Texas at Austin, University of Texas Institute for Geophysics, Austin, United States, Thorsten W Becker, University of Texas at Austin, Jackson School of Geosciences, Austin, United States, Vera Schulte-Pelkum, Univ Colorado Boulder, Boulder, United States and Frederik Link, Yale University, New Haven, CT, United States
Data-Informed *KS-Splitting Classification and Parameter Estimation. (1902045)
Lucas Schirbel, Northwestern University, Evanston, IL, United States, Suzan van der Lee, Northwestern University, Earth and Planetary Sciences, Evanston, United States, Eva Sharman, Columbia University, New York City, United States and Zoe Henke, Ohio State University, Columbus, United States
Mantle Flow and Fault Zone Related Seismic Anisotropy Revealed by a Dense Linear Broadband Array in Southeast Tibet (1905142)
Jing Wu, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, Ai Yinshuang, Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics,Chinese Academy of Sciences, Beijing, China, Stephen S Gao, Missouri University of Science and Technology, Earth Sciences and Engineering, Rolla, United States, Fansheng Kong, Second Institute of Oceanography, Ministry of Natural Resources, Key Laboratory of Submarine Geosciences, Hangzhou, China and Jianguo Song, China University of Petroleum, QingDao, China
How Anisotropy Biases Seismic Imaging at Volcanic Systems – Insights from Body-Wave Tomography at Mt. Etna (1907488)
Kira van Helden1, Brandon VanderBeek2, Gianmarco Del Piccolo1, Manuele Faccenda1, Rosalia Lo Bue3, Elisabetta Giampiccolo3, Ornella Cocina3 and Marco Firetto Carlino3, (1)University of Padova, Department of Geosciences, Padova, Italy, (2)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (3)Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Catania, Italy
Best practices and new tools for modeling complex layered anisotropy through shear wave splitting (1922199)
Colton Lynner, University of Delaware, Earth Science, Newark, DE, United States and Andrew Birkey, University of Delaware, Department of Earth Sciences, Newark, DE, United States
Shear Wave Splitting Across the Galápagos Hotspot and Western Galápagos Spreading Center from the Marine IGUANA Experiment (1923421)
Oluwatofunmi Adeboye1, Garrett Ito1, Vincent Sassard2, Emilie E E Hooft, PhD3, Yang Shen4, Douglas R Toomey3, Rebeckah S Hufstetler3, Kaisa Autumn3, Panupong Kongpet1 and Mario Calixto Ruiz5, (1)University of Hawaii, Department of Earth Sciences, Honolulu, United States, (2)Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, United States, (3)University of Oregon, Department of Earth Sciences, Eugene, United States, (4)University of Rhode Island, Graduate School of Oceanography, Narragansett, United States, (5)Instituto Geofísico, Escuela Politécnica Nacional, Quito, Ecuador
Characterizing Seismic Anisotropy and Sub-Crustal Deformation Beneath Northeast India Through Receiver Function Harmonic Decomposition (1948763)
Dhiraj Kumar Singh1, Mohit Agrawal1, Hitank Kasaundhan1,2, OM Prakash Mishra3 and Mrinal K Sen4, (1)Indian School of Mines, Applied Geophysics, Dhanbad, India, (2)Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, (3)National Center for Seismology, Ministry of Earth Sciences, Lodhi Road, New Delhi, India, Delhi, India, (4)University of Texas, Institute for Geophysics, Austin, United States
A New Upper Mantle Flow Model for South China Based on Seismic Anisotropy Observations (1954864)
Yong Yu1, Pengyu Mao2, Yongshun John Chen3, Zengxi Ge4, Shuoxian Ning5 and Jieyuan Ning2, (1)Institute of Geology, China Earthquake Administration, Beijing, China, (2)Peking University, Beijing, China, (3)Southern University of Science and Technology, Department of Ocean Science and Engineering, Shenzhen, China, (4)ITAG Institute of Theoretical and Applied Geophysics, Peking University, Beijing, China, (5)IGP Institute of Geophysics, China Earthquake Administration, Beijing, China
A New Window into Lithospheric Deformation from High-Resolution Receiver Function Imaging and Probabilistic Anisotropic Inversion: Revealing Terrane Accretion Processes in Eastern Massachusetts (1955493)
Frederik Link, Johannes Gutenberg University of Mainz, Mainz, Germany; Yale University, Department of Earth & Planetary Sciences, New Haven, United States, Maureen D Long, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States, Nikhil Arolkar, Colorado School of Mines, Geology and Geological Engineering, Golden, United States and Yvette D Kuiper, Colorado School of Mines, Department of Geology and Geological Engineering, Golden, CO, United States
Variations of Olivine CPO in Mantle Xenoliths from South Victoria Land, West Antarctic Rift System, with Implications for Seismic Anisotropy (1963321)
Rachel E Bernard1, Karen M Fischer2, Greg Hirth3 and Alberto E Saal2, (1)Amherst College, Amherst, MA, United States, (2)Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, United States, (3)Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States
Navigating the Space of Seismic Anisotropy for Crystal and Whole-Earth Scales (1975913)
Aakash Gupta, University of Alaska Fairbanks, Fairbanks, AK, United States, Carl Tape, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, United States, J Michael Brown, University of Washington Seattle Campus, Seattle, WA, United States and Thorsten W Becker, University of Texas at Austin, Jackson School of Geosciences, Austin, United States
Validation of a Tilted Transversely Isotropic Model of Alaska using 3D Seismic Wavefield Simulations (1980048)
Aakash Gupta, University of Alaska Fairbanks, Fairbanks, AK, United States, Carl Tape, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, United States and Chuanming Liu, University of Texas at Austin, Austin, United States
SKS Splitting Analysis and Upper Mantle Anisotropy Beneath the South Pole (1988512)
Edlyn Wang1, Hanxiao Wu2, Amarjeet Kumar2 and Weisen Shen2, (1)Organization Not Listed, Washington, DC, United States, (2)Stony Brook University, Department of Geosciences, Stony Brook, United States
Crustal Deformation Across the Central Altyn Tagh Fault Constrained by a Dense Seismic Array (1988834)
Chenglong Wu, Institute of Geology and Geophysics Chinese Academy of Sciences, Beijing, CHINA, Tao Xu, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China and Zhanwu Lu, Institute of Geology, Chinese Academy of Geological Sciences, Beijing, China
Mineral Physics Insight on Deformation of Iron and the Origins of Inner Core Seismic Anisotropy (1997202)
Audrey Berlin1, Blake T Sturtevant2, Garrett Zeff2, Estelle Ledoux3, Hans-Peter Liermann4 and Lowell M Miyagi5, (1)University of Utah, Department of Geology and Geophysics, Salt Lake City, UT, United States, (2)Los Alamos National Laboratory, Los Alamos, United States, (3)University of Oxford, Oxford, United Kingdom, (4)Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany, (5)University of Utah, Department of Geology and Geophysics, Salt Lake City, United States
Analysis of Shear Wave Splitting Patterns in Alaska: Evidence for Strong Intra-slab Anisotropy (1998265)
Yingcai Zheng, University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States, Sharmila Appini, University of Houston, Houston, TX, United States and Jonny Wu, University of Arizona, Department of Geosciences, Tucson, United States
Constraining Slab-Edge Driven Mantle Flow the Cascadia Subduction Zone (2001689)
Samantha Koller, Colorado College, Colorado Springs, CO, United States, Margarete Ann Jadamec, University at Buffalo, Department of Geology; Institute for Artificial Intelligence and Data Science, Buffalo, NY, United States, Maureen D Long, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States and Clayton Kolke, University of Buffalo, Department of Geology, Buffalo, United States
