GP12A:
Planetary Magnetism and Core Processes I


Submit an Abstract to this Session


Session ID#: 56757

Session Description:
Planetary magnetism provides a window into the evolution of planets, moons, and early planetesimals from exosphere to core. At the same time, investigating the composition, dynamics, and thermal evolution of planetary cores is also critical for predicting the behavior and evolution of dynamo fields.  In this session, we aim to foster interdisciplinary conversations between investigators studying magnetics and planetary interiors.  As such, this session calls for contributions relating to observational, experimental, and theoretical/modeling work in the areas of: 1) core composition; 2) core dynamics; 3) planetary thermal evolution; 4) dynamos; 5) crustal magnetism; 6) paleomagnetism; 7) magnetospheres.
Primary Convener:  Sonia Tikoo, Rutgers University New Brunswick, New Brunswick, NJ, United States
Conveners:  Rona Oran, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States, Douglas Hemingway, University of California Berkeley, Berkeley, CA, United States and Matthieu Laneuville, Tokyo Institute of Technology, Earth Life Science Institute, Tokyo, Japan
Primary Liaison:  Sonia Tikoo, Stanford University, Department of Geophysics, Stanford, United States
Chairs:  Sonia Tikoo, Stanford University, Department of Geophysics, Stanford, United States and Rona Oran, Univ of Michigan--AOSS, Ann Arbor, United States
OSPA Liaison:  Rona Oran, Univ of Michigan--AOSS, Ann Arbor, United States
Co-Organized with:
Geomagnetism, Paleomagnetism and Electromagnetism, and Planetary Sciences

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • MR - Mineral and Rock Physics
  • P - Planetary Sciences

Proposed Co-Organized Session with:
  • P - Planetary Sciences
Index Terms:

1507 Core processes [GEOMAGNETISM AND PALEOMAGNETISM]
1510 Dynamo: theories and simulations [GEOMAGNETISM AND PALEOMAGNETISM]
1595 Planetary magnetism: all frequencies and wavelengths [GEOMAGNETISM AND PALEOMAGNETISM]
5430 Interiors [PLANETARY SCIENCES: SOLID SURFACE PLANETS]

Abstracts Submitted to this Session:

Chemistry Controls Dynamos in Metallic Cores: New Perspectives from Venus and Mars (452493)
Joseph G O'Rourke1, Cedric Gillmann2, Paul J Tackley3 and Sang-Heon Dan Shim1, (1)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (2)Royal Observatory of Belgium, Brussels, Belgium, (3)ETH Zurich, Department of Earth and Planetary Sciences, Zürich, Switzerland
Curious Case of the Lunar Core Dynamo (Invited) (445529)
Alexander J Evans, Brown University, Earth, Environmental and Planetary Sciences, Providence, United States, Sonia Tikoo, Stanford University, Department of Geophysics, Stanford, United States and Jeffrey C Andrews-Hanna, University of Arizona, Lunar and Planetary Laboratory, Tucson, United States
Basal Magma Ocean Dynamo as the Origin of the Ancient Lunar Magnetic Field (Invited) (349044)
Krista Marie Soderlund, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, Aaron L Scheinberg, Princeton University, Princeton, NJ, United States and Linda T Elkins-Tanton, Arizona State University, School of Earth & Space Exploration, Tempe, AZ, United States
On the Origin of the Geomagnetic Dipole Field (369487)
John V Shebalin, George Mason University Fairfax, Fairfax, VA, United States
Two-Phase Magneto-Hydrodynamics: A First Step Toward Understanding a Last Gasp Dynamo in Crystallizing Planetesimal Cores (393567)
David Bercovici, Yale University, Earth & Planetary Sciences, New Haven, CT, United States and Elvira Mulyukova, Northwestern University, Earth and Planetary Sciences, Evanston, IL, United States
On constraining planetary interiors using satellite magnetic field measurements (Invited) (351599)
Foteini Vervelidou, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, Vincent Lesur, Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, UMR 7154 CNRS/INSU, Paris, France, Achim Morschhauser, GFZ German Research Centre for Geosciences, Potsdam, Germany, Matthias Grott, German Aerospace Ctr DLR, Berlin, Germany, Robert J Lillis, Space Sciences Laboratory, University of California Berkeley, Berkeley, United States and Paul Thomas, German Aerospace Center DLR Berlin, Berlin, Germany
Constraining the source geometry and formation age of the Moon’s Reiner Gamma lunar swirl (402494)
Megan Rene Kelley, University of California Santa Cruz, Santa Cruz, CA, United States and Ian Garrick-Bethell, University of California Santa Cruz, Santa Cruz, United States; Kyung Hee University, Yongin, Korea, Republic of (South)
Evolution of the Ancient Martian Dynamo as Recorded by the ALH 84001 Meteorite (454101)
Sarah Steele, Harvard University, Cambridge, MA, United States, Roger R Fu, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, Jennifer Buz, Northern Arizona University, Flagstaff, AZ, United States and Eduardo A. Lima, MIT-Earth & Planetary Sciences, Cambridge, United States

See more of: Geomagnetism, Paleomagnetism and Electromagnetism