DI005
Deciphering the Structure, Mineralogy, and Composition of the Lower Mantle II Posters

Wednesday, 9 December 2020: 04:00-20:59
Poster
Primary Convener:  Terry-Ann Suer, Harvard University, Cambridge, MA, United States
Conveners:  Denis Andrault, University Blaise Pascal Clermont-Ferrand II, Clermont-Ferrand, France, Jennifer Jenkins, University of Cambridge, Cambridge, United Kingdom and Maxim Ballmer, ETH Zürich, Department of Earth Sciences, Zürich, Switzerland
Primary Liaison:  Terry-Ann Suer, Harvard University, Cambridge, MA, United States
Chairs:  Terry-Ann Suer, Harvard University, Cambridge, MA, United States, Dongyang Huang, Institut de Physique du Globe de Paris, Paris, France and Denis Andrault, Laboratoire Magmas et Volcans, Clermont-Ferrand Cedex, France
OSPA Liaison:  Terry-Ann Suer, Harvard University, Cambridge, MA, United States
 
A new look at polarity information in D" reflections (694775)
Christine Thomas, Westfälische Wilhelms-Universität Münster, Institute of Geophysics, Münster, Germany, Laura J Cobden, Utrecht University, Utrecht, Netherlands and Art R.T. Jonkers, Westfälische Wilhelms-Universität Münster, Münster, Germany
 
Additional constraints on the Samoa ULVZ from SKKS and SKS differential travel-times and amplitudes (703667)
Justin Krier1, Michael Scott Thorne1, Kuangdai Leng2 and Tarje Nissen-Meyer3, (1)University of Utah, Salt Lake City, UT, United States, (2)University of Oxford, Oxford, United Kingdom, (3)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
 
An Analysis of Normal-Mode Based 3-D Mantle Density Models using Hamiltonian Monte Carlo Methods (665854)
Runa van Tent1, Arwen Fedora Deuss1, Andreas Fichtner2, Lars Gebraad2 and Jeannot Trampert1, (1)Utrecht University, Utrecht, Netherlands, (2)ETH Zurich, Department of Earth Sciences, Institute of Geophysics, Zurich, Switzerland
 
Bayesian imaging of the Hawaiian ULVZ from Sdiff postcursors (721736)
Carl Martin1, Sanne Cottaar1, Thomas Bodin2 and Nicholas Rawlinson1, (1)University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, (2)Université de Lyon, UCBL, ENSL, CNRS, LGL-TPE, Villeurbanne, France
 
Deciphering the nature of LLSVPs using constraints from geoid and dynamic topography (716453)
Yaoyi Wang, University of Illinois at Urbana Champaign, Urbana, IL, United States, Lijun Liu, University of Illinois at Urbana-Champaign, Urbana, IL, United States and Xiyuan Bao, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, CA, United States
 
Density vs. Mineralogy Correlation of the Mantle: A Quantitative Measurement of the Spatial Distribution of Thermal Pressure in a Laser Heated Diamond Anvil Cell and its Implications on Derived Equations of State. (686319)
Martin Kunz, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Connor Ethan Yen, University of California Berkeley, Mathematics, Berkeley, United States and Quentin Williams, University of California Santa Cruz, Santa Cruz, CA, United States
 
Diffusion in Stishovite and CaCl2-type Silica from First-Principles Calculations: Implications for MORB Viscosity in the Lower Mantle (719689)
Bowen Chen, Wenzhong Wang, Zhongqing Wu and Xiaoping Wu, University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China
 
Giant Impact Origin for the Large Low Shear Velocity Provinces (700138)
Qian Yuan1, Mingming Li1, Steven J Desch1 and Byeongkwan Ko2, (1)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (2)Seoul National University, Seoul, Korea, Republic of (South)
 
Gird-search Modeling the Lowermost Mantle Structure Beneath Central America and the Central Pacific (711586)
Yuwei LI, Meghan Samanth Miller, Hrvoje Tkalcic and Malcolm Sambridge, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia
 
Global lower-mantle structure from multifrequency tomography using teleseismic and core-diffracted body waves (683341)
Kasra Hosseini1,2, Karin Sigloch1, Maria Tsekhmistrenko1,3, Afsaneh Mohammadzaheri1, Tarje Nissen-Meyer1 and Heiner Igel4, (1)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, (2)The Alan Turing Institute, London, United Kingdom, (3)Dublin Institute for Advanced Studies, Dublin, Ireland, (4)Ludwig Maximilians University of Munich, Munich, Germany
 
Improving Stoneley-mode constraints on the structures near the core-mantle boundary (742734)
Harry Matchette-Downes, Massachusetts Institute of Technology, Cambridge, MA, United States, Jia Shi, Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States, Jingchen Ye, Rice University, Applied Physics, Houston, TX, United States, Jiayuan Han, Rice University, Department of Computational and Applied Mathematics, Houston, TX, United States, Robert D van der Hilst, Massachusetts Institute of Technology, Cambridge, United States and Maarten Dehoop, Rice University, Computational and applied mathematics, Houston, TX, United States
 
Investigation of core-mantle boundary topography using adjoint methods. (691249)
Maria Koroni, ETH Swiss Federal Institute of Technology Zurich, Department of Earth Sciences, Zurich, Switzerland, Anselme F E Borgeaud, University of Tokyo, Bunkyo-ku, Japan, Andreas Fichtner, ETH Zurich, Department of Earth Sciences, Institute of Geophysics, Zurich, Switzerland and Frederic Deschamps, Academia Sinica, Taipei, Taiwan
 
Microstructures induced by the post-garnet transformation in mid-ocean ridge basalt (MORB) (694129)
Matthias Krug1, Ilya Kupenko1, Estelle Ledoux2, Jeffrey Gay2, Jean-Philippe Perrillat3, Julien Chantel2, Sergio Speziale4, Anna Pakhomova5, Sebastien Merkel2 and Carmen Sanchez-Valle1, (1)University of Münster, Institute for Mineralogy, Münster, Germany, (2)UMET, Université de Lille, Lille, France, (3)Université Claude Bernard Lyon1, Villeurbanne, France, (4)Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany, (5)DESY Deutsches Elektronen Synchrotron, Hamburg, Germany
 
New large-scale ultralow-velocity zones discovered using highly anomalous SPdKS recordings (702307)
Michael Scott Thorne, University of Utah, Salt Lake City, UT, United States, Kuangdai Leng, University of Oxford, Oxford, United Kingdom, Surya Pachhai, University of Utah, Department of Geology and Geophysics, Salt Lake City, UT, United States, Sebastian Rost, The University of Leeds, Leeds, United Kingdom, Tarje Nissen-Meyer, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom and June K Wicks, Johns Hopkins University, Baltimore, United States
 
Phase relations of basaltic crust determined by simultaneous pressure-temperature generation techniques to 52 GPa and 2000 K using a multi-anvil press with tungsten carbide anvils (691488)
Takayuki Ishii, Bayerisches Geoinstitut, Universitaet Bayreuth, Bayreuth, Germany, Nobuyoshi Miyajima, Bayerisches Geoinstitut, Bayreuth, Germany and Tomoo Katsura, University of Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany
 
Phase transitions in ε-FeOOH at high pressure and ambient temperature (699017)
Elizabeth Colette Thompson1, Anne Davis2, Nigel Brauser2, Zhenxian Liu3, Vitali B Prakapenka4 and Andrew Campbell2, (1)Sewanee: The University of the South, Department of Earth and Environmental Systems, Sewanee, TN, United States, (2)University of Chicago, Chicago, IL, United States, (3)University of Illinois at Chicago, Department of Physics, Chicago, IL, United States, (4)University of Chicago, Center for Advanced Radiation Sources, Chicago, IL, United States
 
Possibilities of trans-dimensional parameterization for Deep Earth joint inversion (725234)
Wolfgang Szwillus, University of Kiel, Kiel, Germany
 
Probabilistic inversion of shear-wave splitting for D'' anisotropy (680296)
Joseph Philip Robert Asplet1, James M Wookey1 and Michael Kendall2, (1)University of Bristol, School of Earth Sciences, Bristol, United Kingdom, (2)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
 
Reactive Crystallization of the Basal Magma Ocean on Terrestrial Planets (674523)
Maxim Ballmer, University College London, Dept. Earth Sciences, London, United Kingdom, Robert Spaargaren, ETH Zurich, Zurich, Switzerland, Ananya Mallik, University of Arizona, Tucson, AZ, United States, Saswata Hier-Majumder, University of Maryland, College Park, MD, United States, Daniela P. Bolrão, ETH Zürich, Department of Earth Sciences, Zürich, Switzerland, Adrien Morison, Ecole Normale Supérieure Lyon, Laboratoire de geologie de Lyon, Lyon, France and Miki Nakajima, University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States
 
Reconciliation of the negative pressure dependence of the 660-km discontinuity depth with the bridgmanite forming reactions in MgO-SiO2 systems (733975)
Artem Chanyshev1, Takayuki Ishii1, Dmitry Bondar1, Shrikant Bhat2, Eun Jeong Kim1, Robert J Farla2, Zhaodong Liu1, Lin Wang1, Ayano Nakajima3, Bingmin Yang4, Hu Tang4, Zhen Chen4, Yuji Higo5, Yoshinori Tange5 and Tomoo Katsura1, (1)University of Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany, (2)Deutsche Elektronen-Synchrotron (DESY), Hamburg, Germany, (3)Tohoku University, Sendai, Japan, (4)Center for High Pressure Science and Technology Advanced Research, Beijing, China, (5)Japan Synchrotron Radiation Research Institute, Hyogo, Japan
 
Strong Topography of the Mid-Mantle Reflector Beneath the Northern Atlantic (725758)
Morvarid Saki, University of Münster, Institut of Geophysics, Münster, Germany, Christine Thomas, Westfälische Wilhelms-Universität Münster, Institute of Geophysics, Münster, Germany and Rafael Abreu, University of Münster, Institute of Geophysics, Münster, Germany
 
Using P2KP Diffracted Phases and High Frequency Synthetic Seismograms to Interrogate Core Mantle Boundary Structure (692801)
Stuart Russell1, Sanne Cottaar1 and Jessica C E Irving2, (1)University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, (2)University of Bristol, School of Earth Sciences, Bristol, BS8, United Kingdom
 
Water-induced Diamond Formation at the Earth’s Core-Mantle Boundary (701109)
Byeongkwan Ko1, Stella Chariton2, Vitali B Prakapenka2, Bin Chen3, Shule Yu1, Edward Garnero4, Mingming Li5 and Sang-Heon Dan Shim1, (1)Arizona State University, Tempe, AZ, United States, (2)University of Chicago, Center for Advanced Radiation Sources, Chicago, IL, United States, (3)University of Hawaii at Manoa, Hawaii Institute of Geophysics and Planetology, Honolulu, HI, United States, (4)Arizona State Univ, Tempe, AZ, United States, (5)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States
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