GP014
Planetary Magnetism and Core Processes
Session ID#: 80030
Session Description:
Planetary magnetism provides insight into the evolution of planets, moons, early planetesimals, and even processes in the solar nebula and protoplanetary disk. Paleomagnetic and crustal magnetic records on solar system bodies largely reflect remanent magnetization acquired in the presence of core dynamo fields. The study of these records can give us insights about the thermal, dynamical, and compositional properties of planetary cores. At the same time, independent studies of core properties through numerical, experimental or theoretical approaches are critical for understanding the evolution of dynamo fields and the remanent magnetism that these fields contribute to. In this session, we aim to facilitate links between paleomagnetism/crustal magnetism studies and research in core processes. We call for observational, experimental, and theoretical contributions spanning the broad areas of planetary crustal magnetism, paleomagnetism, core composition, core dynamics, thermal evolution, and dynamo theory.
Index Terms:
1507 Core processes [GEOMAGNETISM AND PALEOMAGNETISM]
1517 Magnetic anomalies: modeling and interpretation [GEOMAGNETISM AND PALEOMAGNETISM]
1595 Planetary magnetism: all frequencies and wavelengths [GEOMAGNETISM AND PALEOMAGNETISM]
5440 Magnetic fields and magnetism [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
Primary Convener: Sonia Tikoo, Rutgers University, Piscataway, NJ, United States
Conveners: Alain Plattner, University of Alabama, Department of Geological Sciences, Tuscaloosa, AL, United States, Peter Driscoll, Carnegie Institution for Science Washington, Washington, DC, United States and Anna Mittelholz, University of British Columbia, Department of Earth, Ocean and Atmospheric Science, Vancouver, BC, Canada
Primary Liaison: Sonia Tikoo, Rutgers University, Piscataway, NJ, United States
Testing the origin of remanent magnetization in the Allende CV3 chondrite using high spatial resolution (492215)
Roger R Fu, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States and Michael Volk, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States
Rock Magnetic Investigation of the Daule Ordinary Chondrite (503767)
Katie Bristol1, Aleksey V Smirnov1, Elisa J Piispa2,3, Andrei Kosterov4, Evgeniy Kulakov5 and Milton Roberto Ramirez Navas6, (1)Michigan Technological University, Geological and Mining Engineering and Sciences, Houghton, MI, United States, (2)Yachay Tech University, School of Geological Sciences and Engineering, Imbabura, Ecuador, (3)Michigan Technological University, Geological and Mining Engineering and Sciences, Houghton, United States, (4)St. Petersburg State University, St Petersburg, Russia, (5)University of Oslo, Oslo, Norway, (6)Instituto Geográfico Militar, Quito, Ecuador
The probabilistic structure of the geodynamo (509224)
Christian Scullard, Lawrence Livermore National Laboratory, Livermore, CA, United States and Bruce A Buffett, University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States
Constraints on the distances and timing of solid migration in the early solar system from meteorite paleomagnetism (509402)
James Francis Joseph Bryson1, Benjamin P Weiss2, Eduardo A. Lima3, Jerome Gattacceca4, William Cassata5, John Brooks Biersteker6, Sara S Russell7 and Ashley King7, (1)University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, (2)MIT, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, (3)MIT-Earth & Planetary Sciences, Cambridge, MA, United States, (4)CNRS, Aix Marseille Univ, CEREGE, Aix-En-Provence, France, (5)Lawrence Livermore National Laboratory, Livermore, CA, United States, (6)Massachusetts Institute of Technology, Cambridge, MA, United States, (7)Natural History Museum, London, United Kingdom
An effect of the Rayleigh number on morphology of a long-lived lunar dynamo driven by compositional convection (513580)
Fumi Hyodo1, Futoshi Takahashi1, Satoshi Kaneshima1, Hisayoshi Shimizu2 and Hideo Tsunakawa3, (1)Kyushu University, Fukuoka, Japan, (2)Univ Tokyo, Tokyo, Japan, (3)Tokyo Inst. Tech., Tokyo, Japan
Electrical Investigation of the Fe-S-O-Mg and Fe-S-O-Si Systems up to 10 GPa and Application to Terrestrial Cores (542915)
Rong Zhang, University of San Diego, San Diego, CA, United States, Anne Pommier, University of California San Diego, La Jolla, CA, United States and Christopher J Davies, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
The Role of a Moderately Conductive Basal Magma Ocean in the Ancient Lunar Dynamo (553442)
Jacob N. H. Abrahams1, Nicholas Brummell1, Jacob B Noone Wade1, Ian Garrick-Bethell1 and Lydia Korre2, (1)University of California Santa Cruz, Santa Cruz, CA, United States, (2)University of Colorado at Boulder, Boulder, CO, United States
Investigating the Early Martian Magnetic Field Using Chromite in the ALH 84001 Meteorite (568986)
Sarah Steele1, Michael Volk2 and Roger R Fu2, (1)California Institute of Technology, Pasadena, CA, United States, (2)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States
Measurements of Early Magnetic Fields in the Innermost and Outer Solar System from CO Chondrites (592205)
Caue S. Borlina1, Benjamin P Weiss2, James Francis Joseph Bryson3 and Eduardo A. Lima2, (1)Massachusetts Institute of Technology, Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, (3)University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom
Paleomagnetism of the Orgueil and Ivuna meteorites and implications for the evolution of the CI chondrite parent body (595112)
Sonia Tikoo1, Catie Monteith2 and Virginia Agostinelli2, (1)Stanford University, Department of Geophysics, Stanford, CA, United States, (2)Rutgers University, Piscataway Township, NJ, United States
The Relationship of Martian Crustal Remnant Magnetism and Mineralogy (604116)
Ahmed Alhantoobi, Abu Dhabi, United Arab Emirates, Jennifer Buz, California Institute of Technology, Pasadena, CA, United States, Joseph G O'Rourke, Arizona State University, Tempe, AZ, United States, Christopher S Edwards, Northern Arizona University, Astronomy and Planetary Science, Flagstaff, AZ, United States and Benoit Langlais, Lab Planetologie Geodynamique, Nantes, France
Evidence for a Late Lunar Dynamo Revisited (624172)
Rory Danielle Cottrell1, Kristin Lawrence, Richard K. Bono3, Catherine Johnson4 and John Anthony Tarduno1, (1)University of Rochester, Earth and Environmental Sciences, Rochester, NY, United States, (2)University of Liverpool, Liverpool, L69, United Kingdom, (3)University of British Columbia, Department of Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada
Extremely Low Paleointensity Recorded by a Lunar Meteorite Northwest Africa 11303 (633144)
Huapei Wang1, Xuelong Jiang1, Chen Wen1, Ting Cao2 and Shaochen Hu1, (1)China University of Geosciences (Wuhan), School of Earth Sciences, Wuhan, China, (2)China University of Geosciences（Wuhan）, School of Earth Sciences, Wuhan, China
