DI31A:
Pillars of Deep Earth Research: Accomplishments, Limitations, and the Road Ahead II Poster

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Session ID#: 13048

Session Description:
Much of the progress in our understanding of Earth’s deep interior in the last 3 decades has been enabled by a handful of big ideas, both conceptual and related to infrastructure development. These include: investigating the long-wavelength structure of the mantle and linking it to mantle dynamics; systematically characterizing earthquakes around the globe through moment tensor analysis; and, creating reference seismological models of Earth structure for use in mineral physics and geodynamics. Additionally, these big ideas centered on creating systems for acquiring and openly distributing globally relevant high-quality data, establishing a culture of data sharing, and educating the next generation of interdisciplinary scientists. We invite submissions from across disciplines that: 1. address new insights into large scale deep Earth structure and processes; 2. identify limitations of, suggest improvements to, and/or propose the next generation of approaches, observations, and systems that will inform global deep Earth studies over the coming decades.
Primary Convener:  Vedran Lekic, University of Maryland College Park, College Park, MD, United States
Conveners:  Barbara A Romanowicz, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, Louise H Kellogg, University of California - Davis, Earth and Planetary Sciences, Davis, CA, United States and Sujoy Mukhopadhyay, Arizona State University, Department of Earth and Planetary Sciences, Tempe, AZ, United States
Chairs:  Louise H Kellogg, University of California - Davis, Earth and Planetary Sciences, Davis, CA, United States and Vedran Lekic, University of Maryland College Park, College Park, MD, United States
OSPA Liaison:  Vedran Lekic, University of Maryland College Park, College Park, MD, United States

Cross-Listed:
  • S - Seismology
  • T - Tectonophysics
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1038 Mantle processes [GEOCHEMISTRY]
7215 Earthquake source observations [SEISMOLOGY]
7294 Seismic instruments and networks [SEISMOLOGY]
8124 Earth's interior: composition and state [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Density and Vs contrasts across mantle transition zone discontinuities beneath the Central Pacific (162076)
Chunquan Yu1,2, Elizabeth A Day3, Maarten V De Hoop4, Michel Campillo5, Saskia D B Goes6, Rachel A Blythe3 and Robert D van der Hilst7, (1)Southern University of Science and Technology, China, Shenzhen, China, (2)Massachusetts Institute of Technology, Cambridge, MA, United States, (3)Imperial College London, London, United Kingdom, (4)Rice University, Computational and Applied Mathematics, Houston, TX, United States, (5)University Joseph Fourier Grenoble, Institut des Science de la Terre, Grenboble, France, (6)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (7)Massachusetts Institute of Technology, Cambridge, United States
Detecting Seismic Anisotropy in the Mantle Transition Zone with SS Precursors (124146)
Quancheng Huang, University of Maryland, Department of Geology, Golden, United States, Nicholas C Schmerr, University of Maryland College Park, Department of Geology, College Park, MD, United States, Lauren Waszek, University of Maryland College Park, Department of Geology, College Park, United States, Caroline Beghein, University of California Los Angeles, Earth, Space, and Planetary Sciences, Los Angeles, CA, United States and Erik Christopher Weidner, University of California Los Angeles, Los Angeles, CA, United States
Seismic Detection of P-wave Velocity Structure atop MTZ Beneath the Central Tian Shan (124869)
Yajian Gao1,2, Qinghui Cui1,2 and Yuanze Zhou2,3, (1)UCAS University of Chinese Academy of Sciences, Beijing, China, (2)Key Laboratory of Computation Geodynamics,Chinese Academy of Sciences, Beijing, China, (3)University of Chinese Academy of Sciences, Beijing, China
Global Seismic Image of Mantle Transition Zone based on Finite-Frequency Theory. (141575)
Carlos Alberto Moreno Chaves, University of Michigan Ann Arbor, Department of Earth and Environmental Sciences, Ann Arbor, MI, United States; University of São Paulo, IAG Institute of Astronomy, Geophysics and Atmospheric Sciences, São Paulo, Brazil, Jeroen Ritsema, University of Michigan Ann Arbor, Department of Earth and Environmental Sciences, Ann Arbor, United States, Lauren Waszek, University of Maryland College Park, Department of Geology, College Park, United States and Nicholas C Schmerr, University of Maryland College Park, Department of Geology, College Park, MD, United States
Lateral variations of mantle transition-zone discontinuities (142074)
Songqiao Shawn Wei, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, Peter M Shearer, University of California, San Diego, Scripps Institution of Oceanography, La Jolla, United States and Janine S Buehler, University of California San Diego, La Jolla, CA, United States
Three-dimensional Structure of the Mantle Transition Zone Revealed by High Resolution Wavefield Imaging (143265)
Yinzhi Wang, Indiana University Bloomington, Bloomington, United States and Gary L Pavlis, Indiana University Bloomington, Earth and Atmospheric Sciences, Bloomington, IN, United States
Nonlinear 1D and 2D waveform inversions of SS precursors and their applications in mantle seismic imaging (182599)
Ramin Dokht, University of Alberta, Edmonton, AB, Canada, Yu Jeffrey Gu, University of Alberta, Department of Physics, Edmonton, AB, Canada and Mauricio D Sacchi, University of Alberta, Physics, Edmonton, AB, Canada
Comparison of Velocity Models for South America through Seismic Wave Modeling of Ten Andean Earthquakes Recorded by the Brazilian Seismographic Network using the Spectral Element Method (177406)
Caio Ciardelli, Colorado School of Mines, Golden, United States and Marcelo Assumpcao, University of Sao Paulo, Inst. of Astronomy, Geophysics and Atmospheric Sciences, Sao Paulo, Brazil
A Global Upper-Mantle Tomographic Model of Shear Attenuation (161504)
Haydar A Karaoglu, Utrecht University, Utrecht, Netherlands and Barbara A Romanowicz, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States
Evidence for deep melting in the European upper mantle from seismology (Invited) (118161)
Laura J Cobden1, Jeannot Trampert1 and Andreas Fichtner2, (1)Utrecht University, Utrecht, Netherlands, (2)ETH Zurich, Institute of Geophysics, Zurich, Switzerland
On the Origin of High Shear Wave Velocities in the Deep Roots of Cratons (126871)
Li Zeng, Harvard University, Cambridge, MA, United States, Megan S Duncan, Geophysical Laboratory of the Carnegie Institution for Science, Washington, DC, United States, Joshua M Garber, University of California Santa Barbara, Earth Science, Santa Barbara, United States, Jean-Alexis Hernandez, Ecole Polytechnique, Palaiseau Cedex, France, Satish Maurya, University of California Berkeley, Berkeley Seismological Laboratory, Berkeley, CA, United States, Hongluo Zhang, University of Science and Technology of China, Hefei, China, Ulrich Faul, Massachusetts Institute of Technology, Earth Atmospheric and Planetary Sciences, Cambridge, MA, United States, Catherine A McCammon, University of Bayreuth, Bayreuth, Germany, Jean-Paul Montagner, CNRS, Institut de Physique du Globe de Paris, Paris, France, Louis Noel Moresi, University of Melbourne, Parkville, VIC, Australia, Barbara A Romanowicz, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, Roberta L Rudnick, University of California Santa Barbara, Department of Earth Science and Earth Research Institute, Santa Barbara, CA, United States and Lars P Stixrude, University College London, Earth Sciences, London, United Kingdom
The Robustness of Tomographically Imaged Broad Plumes in the Deep Mantle: Constraints on Mantle Dynamics (160470)
Barbara A Romanowicz1, Hugo Jiménez-Pérez2, Sevan Adourian2, Haydar A Karaoglu3 and Scott French4,5, (1)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, (2)Institut de Physique du Globe de Paris, Paris, France, (3)Utrecht University, Utrecht, Netherlands, (4)University of California Berkeley, Berkeley, CA, United States, (5)Now at :Google Inc, Mountain View, CA, United States
Tracing Mantle Plumes: Quantifying their Morphology and Behavior from Seismic Tomography (163171)
Keely Anne O'Farrell, University College London, London, United Kingdom; University of Kentucky, Earth and Environmental Sciences, Lexington, KY, United States, Caroline M Eakin, University of Southampton, Ocean and Earth Science, National Oceanography Centre, Southampton, SO14, United Kingdom, Timothy D Jones, Australian National University, Canberra, ACT, Australia, Emmanuel Garcia, University of California San Diego, La Jolla, CA, United States, Alex Robson, University of California Berkeley, Berkeley, CA, United States, Tushar Mittal, Penn State, Earth and Planetary Science, University Park, United States, Carolina R Lithgow-Bertelloni, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, Matthew G Jackson, University of California Santa Barbara, Earth Science, Santa Barbara, CA, United States, Vedran Lekic, University of Maryland College Park, College Park, MD, United States and Maxwell L Rudolph, Portland State University, Geology, Portland, OR, United States
New Quantification of Mantle structure based on tomography models and thermodynamic constraints (173620)
Claudia Maria Adam, Kansas State University, Geology, Manhattan, KS, United States, Scott D. King, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States and Mark J Caddick, Virginia Tech, Blacksburg, VA, United States
Searching for structure in the mid-mantle: Observations of converted phases beneath Iceland and Europe (121970)
Jennifer Jenkins, University of Cambridge, Earth Science, Cambridge, United Kingdom, Arwen Fedora Deuss, Utrecht University, Utrecht, Netherlands and Sanne Cottaar, University of Cambridge, Cambridge, United Kingdom
Seismic observations of mid-mantle discontinuities on a global scale: implications for convection and composition (130076)
Lauren Waszek, University of Maryland College Park, Department of Geology, College Park, United States, Nicholas C Schmerr, University of Maryland College Park, Department of Geology, College Park, MD, United States and Maxim Ballmer, Tokyo Institute of Technology, ELSI, Tokyo, Japan
The 3D Reference Earth Model (REM-3D): Update and Outlook (186880)
Vedran Lekic, University of Maryland College Park, College Park, MD, United States, Pritwiraj Moulik, University of Maryland College Park, Department of Geology, College Park, MD, United States, Barbara A Romanowicz, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States and Adam M Dziewonski, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States; now deceased, United States
REM-3D Reference Dataset: Reconciling ~100 million surface-wave observations (165866)
Pritwiraj Moulik, University of Maryland College Park, Department of Geology, College Park, MD, United States, Vedran Lekic, University of Maryland College Park, College Park, MD, United States and Barbara A Romanowicz, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States
Investigating the Indian Ocean Geoid Low (146047)
Attreyee Ghosh1, Thyagarajulu Gollapalli1 and Bernhard M Steinberger2, (1)Indian Institute of Science, Centre for Earth Sciences, Bangalore, India, (2)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Reconciling Estimates of Mantle Viscosity Across Scales: Case Study of the Basin and Range (181845)
Christopher Harig, University of Arizona, Department of Geosciences, Tucson, AZ, United States, Shanshan Li, University of Alaska Fairbanks, Fairbanks, AK, United States, Shuwen Dong, Scripps Institution of Oceanography, La Jolla, United States, Clifford Evan Watkins, Rutgers University, New Brunswick, NJ, United States and Jeffrey Todd Freymueller, Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States
Geoid-Shape Cross-Spectral Method for Assessing Planetary Compensation and Dynamics (127807)
Julie Menard, Regan Louis Patton and Anthony John Watkinson, Washington State University, Pullman, WA, United States
Probing the lower mantle composition and thermal structure: Insights from D`` (199109)
Byeongkwan Ko1, Adam Holt2, Chao Gao3, Dan Frost4, Haydar A Karaoglu5, Hongyu Lai6, Kaiqing Yuan7, Mingming Li8, Siobhan Mary Campbell9, Sang-Heon Dan Shim1, Jessica C E Irving10, Louise H Kellogg11 and Meghan Samanth Miller12, (1)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (2)University of Miami, Rosenstiel School of Marine, Atmospheric, and Earth Science, Miami, FL, United States, (3)University of Maryland College Park, Dept. of Geology, College Park, MD, United States, (4)University of California Berkeley, Seismological Laboratory, Berkeley, CA, United States, (5)Utrecht University, Utrecht, Netherlands, (6)Arizona State University, Tempe, AZ, United States, (7)University of California Berkeley, Berkeley, CA, United States, (8)University of Colorado at Boulder, Department of Physics, Boulder, CO, United States, (9)Syracuse University, Syracuse, NY, United States, (10)University of Bristol, School of Earth Sciences, Bristol, BS8, United Kingdom, (11)University of California - Davis, Earth and Planetary Sciences, Davis, CA, United States, (12)Washington University in St Louis, St. Louis, MO, United States
Normal mode constraints on inner core structure: a trans­-dimensional Bayesian approach (183223)
Alex Robson, University of California Berkeley, Berkeley, CA, United States and Barbara A Romanowicz, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States

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