DI014
The Fate of Terrestrial Planetary Cores: Interdisciplinary Perspectives on Structure, Dynamics, and Evolution
Session ID#: 247751
Session Description:
Buried at the heart of planets, core is its least understood region as our knowledge relies on undirect observations (seismic, geomagnetic, geochemistry). It is characterized by extreme conditions and complex chemistry and dynamics. However, understanding the structure, composition, material properties, dynamical processes, and evolution of the core is crucial for insights into planet formation, geomagnetic field generation, habitability, and more. By integrating seismic imaging, improved spatial and temporal constraints on core dynamo models, laboratory experiments examining material properties under extreme conditions or fluid dynamics, and simulation of complex conditions and dynamics, we continue to gain increasingly comprehensive knowledge of planetary cores.This session invites contributions that investigate the structure, compositions, dynamics, and evolution of Earth’s and other terrestrial planetary cores. We encourage abstract presenting advancements from observational, theoretical, and experimental studies spanning diverse disciplines including, but not limited to, seismology, mineral physics, geochemistry, paleo- and geomagnetism, gravity, geodynamics, and fluid dynamics
Co-Sponsor(s):
Index Terms:
1015 Composition of the core [GEOCHEMISTRY]
1507 Core processes [GEOMAGNETISM AND PALEOMAGNETISM]
5430 Interiors [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
7207 Core [SEISMOLOGY]
Primary Convener: Guanning Pang, University of Science and Technology of China, Hefei, China
Conveners: Wei Wang, Chinese Academy of Sciences, Beijing, China, Lowell M Miyagi, University of Utah, Department of Geology and Geophysics, Salt Lake City, United States and Ludovic Huguet, University of Leeds, School of Earth and Environment, Leeds, United Kingdom
Student/Early Career Convener: Ruoyan Wang, University of Southern California, Department of Earth Sciences, Los Angeles, United States
Onset of dynamo action: implication for the early magnetic field of proto-planets (1871934)
Ludovic Huguet1, Jonathan E Mound1, Christopher Davies1 and James Bryson2, (1)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (2)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
Fe-Ni Phase Diagram: Mineral Physics Implications for a Layered Inner Core (Invited) (1889995)
Prof. Yang Sun1, Liangrui Wei2, Zepeng Wu2, Kai-Ming Ho3 and Renata Wentzcovitch4, (1)Xiamen University, Department of Physics, Xiamen, China, (2)Xiamen University, Xiamen, China, (3)Ames Laboratory, US DOE, Ames, United States, (4)Columbia University in the City of New York, New York, United States
Effect of a Chemically Stratified F-layer in Rotating Spherical Shell Convection (1896497)
Prof. Christopher J Davies1, Ludovic Huguet1, Souvik Naskar2, Andrew Clarke1, Thomas Frasson3 and Stephen James Mason2, (1)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (2)University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom, (3)ISTerre, Université Grenoble Alpes, CNRS, Grenoble, France
Pattern of inner-core differential rotation from long-term earthquake sequences (1903608)
Kaixin Wu1, Xiaodong Song1 and Yi Yang2, (1)State Key Laboratory of Deep Earth and Mineral Exploration, School of Earth and Space Sciences, Peking University, Beijing, China, (2)School of Earth Sciences and Engineering, Nanjing University, Nanjing, China
Thermochemical geodynamos with heterogeneous core-mantle boundary heat flux (1909724)
Souvik Naskar1, Jonathan E Mound2, Prof. Christopher J Davies2 and Andrew Clarke2, (1)University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom, (2)University of Leeds, School of Earth and Environment, Leeds, United Kingdom
Recent findings on the fine-scale structure of the Earth's inner core in space and time (1912872)
Guanning Pang, University of Science and Technology of China, Hefei, China, Keith D. Koper, University of Utah, Department of Geology and Geophysics, Salt Lake City, United States, Wei Wang, Chinese Academy of Sciences, Beijing, China, Ruoyan Wang, University of Southern California, Department of Earth Sciences, Los Angeles, United States, Prof. John Emilio Vidale, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States and Sin-Mei Wu, University of Hawaii at Manoa, Department of Earth Sciences, Honolulu, United States
Nickel Partitioning between Solid and Liquid Iron in Cores of Terrestrial Planets (1929114)
Tanja Kovacevic1, Philip Myint2, Sebastien Hamel3, Lorin X. Benedict4, Bruce A Buffett1 and Burkhard Militzer1, (1)University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, (2)Lawrence Livermore National Laboratory, Livermore, United States, (3)LLNL, Livermore, United States, (4)Lawrence Livermore National Laboratory, Physics, Livermore, United States
Dynamic Compression of Iron-Sulfur Alloys at the Earth’s Core Conditions (1931189)
Sibo Chen1, Allison M Pease2, Ian Szumila3, Sally June Tracy4, Azat Tipeev5, Ivan Oleynik5 and Sang-Heon Dan Shim2, (1)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (2)Arizona State University, School of Earth and Space Exploration, Tempe, United States, (3)Carnegie Institution for Science, Washington, DC, United States, (4)Carnegie Science, Washington, DC, United States, (5)University of South Florida, Tampa, United States
Nonharmonic Oscillation of Inner Core Differential Rotation in Recent Decades (1931692)
Ruoyan Wang, University of Southern California, Department of Earth Sciences, Los Angeles, United States, Prof. John Emilio Vidale, University of Southern California, Los Angeles, United States and Guanning Pang, University of Science and Technology of China, Hefei, China
Magnetic Field Generation in Coupled Core-Basal Magma Ocean Dynamo Models (Invited) (1936915)
Krista Marie Soderlund1, Chi Yan1, Dunyu Liu1, Melisa Unlu2 and Joseph G O'Rourke3, (1)University of Texas at Austin, Institute for Geophysics, Austin, United States, (2)University of Houston, Houston, United States, (3)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States
The Fe-S-H Liquidus Phase Diagram at Planetary Core Pressures (1942306)
Shuhei Mita1, Naoya Sakamoto2, Kei Hirose1,3, Shunpei Yokoo1 and Shiro Miwa2, (1)The University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Tokyo, Japan, (2)Hokkaido University, Institute for Integrated Innovations, Sapporo, Hokkaido, Japan, (3)Institute of Science Tokyo, Earth-Life Science Institute, Meguro-ku, Tokyo, Japan
Solidus and Phase Relations of Fe0.8Ni0.1Si0.1 at Earth’s Core conditions (1958704)
Cijin Zhou1, Vasilije V Dobrosavljevic2, Dongzhou Zhang3, Wolfgang Sturhahn1, Jiyong Zhao4, Thomas Toellner4, Stella Chariton3, Vitali Prakapenka3 and Jennifer M Jackson1, (1)California Institute of Technology, Seismological Laboratory, Pasadena, United States, (2)Carnegie Institution for Science, Earth and Planets Laboratory, Washington, United States, (3)The University of Chicago, Center for Advanced Radiation Sources, Chicago, United States, (4)Argonne National Laboratory, Advanced Photon Source, Lemont, United States
Nitrogen partitioning between cohenite and S-bearing liquid alloy : Constraints on nitrogen evolution during crystallization of planetary cores (1963459)
Debjeet Pathak, Rice University, Houston, TX, United States, Rajdeep Dasgupta, Rice University, Department of Earth, Environmental and Planetary Sciences, Houston, United States and Katherine Plaza, Dartmouth College, Hanover, United States
