DI013:
New insights into the Earth's core





Session ID#: 26108

Session Description:
The history of Earth’s core remains debated and poorly constrained even as new experiments and observations have contributed to our understanding of the thermal state of outer core and the nucleation of the inner core. Scenarios for the operation and history of the dynamo are challenged by evidence of a stable stratified layer at the outer core’s upper boundary, a high value of thermal conductivity, and the presence of an early magnetic field. In the inner core, seismic observations reveal complex lateral and vertical structure at a broad spectrum of spatial scales, with unknown links to the history of its crystallization, melting, and deformation. We hope this session will bring together a wide range of disciplines, including geodynamic modeling, high-pressure experiments, and seismic observations with the aim of a better understanding Earth’s core.
Primary Convener:  Ludovic Huguet, Case Western Reserve University, Cleveland, OH, United States
Conveners:  Vernon F Cormier, University of Connecticut, Storrs, CT, United States and Robert Teed, University of Cambridge, Cambridge, United Kingdom

Cross-Listed:
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
  • MR - Mineral and Rock Physics
  • S - Seismology
Index Terms:

1507 Core processes [GEOMAGNETISM AND PALEOMAGNETISM]
1510 Dynamo: theories and simulations [GEOMAGNETISM AND PALEOMAGNETISM]
3924 High-pressure behavior [MINERAL PHYSICS]
7207 Core [SEISMOLOGY]

Abstracts Submitted to this Session:

Philip W Livermore, University of Leeds, Leeds, United Kingdom, Christopher C Finlay, DTU National Space Institute, København Ø, Denmark and Rainer Hollerbach, Univ Leeds, Leeds, United Kingdom
Philippe Cardin1, Nathanaël Schaeffer1, Celine Guervilly2 and Elliot Kaplan1, (1)University Grenoble Alpes, ISTerre - CNRS/IRD, Grenoble, France, (2)University of Newcastle, Newcastle, United Kingdom
Toshiki Ohtaki, Geological Survey of Japan, Tsukuba, Japan and Satoshi Kaneshima, Kyushu University, Fukuoka, Japan
Ludovic Huguet, James Van Orman, Steven A. Hauck II and Matthew Willard, Case Western Reserve University, Cleveland, OH, United States
Caue Sciascia Borlina1, Benjamin P Weiss1, Eduardo A. Lima1, Roger R Fu2, Elizabeth A Bell3, Ellen Alexander3, Heather Kirkpatrick4, Matthew M Wielicki4, Mark Harrison3, Jahandar Ramezani1, Richard Harrison5 and Joshua Franz Einsle6, (1)Massachusetts Institute of Technology, Cambridge, MA, United States, (2)Harvard University, Cambridge, MA, United States, (3)University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, (4)University of California Los Angeles, Los Angeles, CA, United States, (5)University of Cambridge, Cambridge, United Kingdom, (6)University of Cambridge, Department of Materials Science and Metallurgy, Department of Earth Sciences, Cambridge, United Kingdom
Marine Lasbleis, Tokyo Institute of Technology, Earth Life Science Institute, Tokyo, Japan, Quiterie Forquenot, Tokyo Institute of Technology, Earth-Life Science Institute, Tokyo, Japan and Renaud Deguen, LGLTPE Laboratoire de Géologie de Lyon : Terre, Planètes et Environnement, Villeurbanne, France
Karen Lythgoe, BP, London, United Kingdom and Arwen Fedora Deuss, University of Cambridge, Cambridge, United Kingdom
Chengwei Zhang1, Jung-Fu Lin2, Ying Liu3, Shaomin Feng3, Changqing Jin3 and Takashi Yoshino4, (1)Center for High Pressure Science and Technology Advanced Research, Shanghai, China, (2)The University of Texas at Austin, Jackson School of Geosciences, Austin, TX, United States, (3)Institute of Physics, Chinese Academy of Science, Key Laboratory of Extreme Conditions Physics, Beijing, China, (4)Okayama University, Institute for Planetary Materials, Tottori, Japan
Tae-Gyu Yee, Seoul National University, Seoul, Korea, Republic of (South), Junkee Rhie, Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea and Hrvoje Tkalcic, Australian National University, Canberra, ACT, Australia
Andy Jackson, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland, Stefano Maffei, University of Colorado, Department of Physics, Boulder, CO, United States and Philip W Livermore, School of Earth & Environment, Leeds, United Kingdom
Simon Bourret1, João A B Coelho1, Edouard C Kaminski2 and Véronique Van Elewyck1, (1)Laboratoire APC, Université Paris Diderot, Paris, France, (2)Institut de Physique du Globe de Paris, Paris, France
Dongdong Tian1 and Lianxing Wen1,2, (1)University of Science and Technology of China, Hefei, China, (2)Stony Brook University, Stony Brook, NY, United States
Mathieu Bouffard1, Stephane Labrosse1, Gael Choblet2, Julien Aubert3 and Alexandre Fournier4, (1)Ecole Normale Supérieure Lyon, Lyon, France, (2)LPGN Laboratoire de Planétologie et Géodynamique de Nantes, Nantes Cedex 03, France, (3)Institut de Physique du Globe, Paris, France, (4)Institut de Physique du Globe de Paris, Paris, France
Jiayuan Yao1, Dongdong Tian1, Li Sun2 and Lianxing Wen1,3, (1)University of Science and Technology of China, School of Earth and Space Science, Hefei, China, (2)China Earthquake Networks Center, Beijing, China, (3)SUNY Stony Brook, Department of Geosciences, Stony Brook, NY, United States
Jonathan M Aurnou1, Nicholas Andrew Featherstone2, Rakesh Kumar Yadav3, Moritz H Heimpel4, Krista M Soderlund5, Hiroaki Matsui6, Sabine Stanley7, Benjamin P. Brown8, Gary Glatzmaier9, Peter Olson10, Bruce A Buffett11, Lorraine Hwang6 and Louise H Kellogg12, (1)University of California Los Angeles, Los Angeles, CA, United States, (2)University of Colorado Boulder, Applied Mathematics, Boulder, CO, United States, (3)Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, United States, (4)University of Alberta, Department of Physics, Edmonton, AB, Canada, (5)Institute for Geophysics, Austin, TX, United States, (6)University of California Davis, Davis, CA, United States, (7)Johns Hopkins University, Earth and Planetary Science, Baltimore, MD, United States, (8)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (9)University of California, Santa Cruz, CA, United States, (10)Johns Hopkins Univ, Baltimore, MD, United States, (11)University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, (12)UC Davis, Department of Earth and Planetary Sciences, Davis, CA, United States
Yi Yang and Xiaodong Song, University of Illinois at Urbana Champaign, Department of Geology, Urbana, IL, United States
Zhongqing Wu, University of Science and Technology of China, Hefei, China and Wenzhong Wang, USTC University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China
Vernon F Cormier1, Januka Attanayake2, Christine Thomas2, Keith D. Koper3 and Meghan Samantha Miller4, (1)University of Connecticut, Storrs, CT, United States, (2)University of Münster, Münster, Germany, (3)University of Utah, Salt Lake City, UT, United States, (4)Australian National University, Canberra, Australia
Daniel Andrew Frost and Barbara A Romanowicz, Berkeley Seismological Lab, Berkeley, CA, United States
Peter Olson, Johns Hopkins University, Department of Earth and Planetary Sciences, Baltimore, MD, United States and Maylis Landeau, University of Cambridge, Department of Applied Mathematics and Theoretical Physics, Cambridge, United Kingdom
Masaki Matsushima, Tokyo Institute of Technology, Tokyo, Japan
Jessica C E Irving1, Sanne Cottaar2, Vedran Lekic3 and Wenbo Wu1, (1)Princeton University, Princeton, NJ, United States, (2)University of Cambridge, Cambridge, United Kingdom, (3)University of Maryland, Department of Geology, Washington, DC, United States
Robert Teed1,2, Kumiko Hori3,4, Steven Tobias4 and Chris A Jones4, (1)University of Glasgow, Glasgow, United Kingdom, (2)University of Cambridge, Cambridge, United Kingdom, (3)Kobe University, Kobe, Japan, (4)University of Leeds, Leeds, United Kingdom
Hope Abigail Jasperson1, Jingchen Ye2, Jia Shi1 and Maarten V De Hoop3, (1)Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States, (2)Rice University, Applied Physics, Houston, TX, United States, (3)Rice University, Computational and Applied Mathematics, Houston, TX, United States
Elizabeth A Day, Imperial College London, London, United Kingdom, Marine Lasbleis, ELSI, Tokyo, Japan and Lauren Waszek, New Mexico State University, Main Campus, Las Cruces, NM, United States
Jessica Chew, Hao Hu and Yingcai Zheng, University of Houston, Earth and Atmospherical Sciences Dept, Houston, TX, United States
Richard K. Bono, University of Rochester, Department of Earth & Environmental Sciences, Rochester, NY, United States, John Anthony Tarduno, Univ Rochester, Rochester, NY, United States and Francis Nimmo, University of California Santa Cruz, Santa Cruz, CA, United States
Peter E Driscoll, Carnegie Institution for Science Washington, Washington, DC, United States and Christopher J Davies, University of Leeds, Leeds, United Kingdom
Joseph G O'Rourke, Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States and David J Stevenson, California Institute of Technology, Pasadena, CA, United States
Scott Burdick, Wayne State University, Geology Department, Detroit, MI, United States, Lauren Waszek, New Mexico State University Main Campus, Las Cruces, NM, United States and Vedran Lekic, University of Maryland, Department of Geology, Washington, DC, United States
Rachel A Morrison1, Jennifer M Jackson1, Wolfgang Sturhahn1, Dongzhou Zhang2 and Eran Greenberg3, (1)California Institute of Technology, Pasadena, CA, United States, (2)California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States, (3)University of Chicago, Center for Advanced Radiation Sources, Chicago, IL, United States