P54A:
Accretion, Differentiation, and Early Planetary Evolution III

Submit an Abstract to this Session



Session ID#: 32228

Session Description:
The early planetary evolution is punctuated by major events such as accretion and core formation. These involve a variety of physical and chemical processes interacting over a very large range of scales in space and time. Understanding these earliest stages is fundamental in order to constrain the subsequent billions of years of thermo-chemical evolution of terrestrial bodies. Due to vigorous internal dynamics and to their size, the largest terrestrial objects have undergone one or several episodes of global melting, which complicates the reconstruction of their early histories. However, smaller objects may have retained frozen traces of their early evolution, thus providing a unique opportunity to test model predictions against observations. We welcome contributions from fluid dynamics, geochemistry, astrophysics, mineral physics, geology and petrology that address the early formation and evolution of planetary objects ranging from meteorites to Earth-sized planets.
Primary Convener:  David Baratoux, French Research Insitute for Sustainable Development, Geosciences Environnement Toulouse, Toulouse, France
Conveners:  Henri Samuel, IRAP, Toulouse, France and Nicola Tosi, German Aerospace Center DLR Berlin, Planetary Physics, Berlin, Germany
Chairs:  David Baratoux, Institut Fondamental d'Afrique Noire Check Anta Diop, Dakar, Senegal and Nicola Tosi, German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany
OSPA Liaison:  Nicola Tosi, German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

5430 Interiors [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
5455 Origin and evolution [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
6024 Interiors [PLANETARY SCIENCES: COMETS AND SMALL BODIES]
6040 Origin and evolution [PLANETARY SCIENCES: COMETS AND SMALL BODIES]

Abstracts Submitted to this Session:

Hysteresis in connectivity of core-forming melts (247571)
Marc A Hesse, The University of Texas at Austin, Jackson School of Geosciences, Austin, United States, Soheil Ghanbarzadeh, University of Texas at Austin, Austin, TX, United States and Masa Prodanovic, The University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering, Austin, TX, United States
Timescale of Destabilization of a Magma Ocean Cumulate (223780)
Adrien Morison1, Stephane Labrosse2, Renaud Deguen2 and Thierry Alboussiere1, (1)LGLTPE Laboratoire de Géologie de Lyon : Terre, Planètes et Environnement, Villeurbanne Cedex, France, (2)Ecole Normale Supérieure Lyon, Lyon, France
Impact-induced melting and heating of planetary interiors – implications for the thermo-chemical evolution of planets and crystallization of magma oceans (Invited) (228635)
Kai Wuennemann1, Lukas Manske2, Meng-Hua Zhu3, Miki Nakajima4, Doris Breuer5, Sabrina Schwinger5 and Ana-Catalina Plesa5, (1)Museum für Naturkunde Berlin, Berlin, Germany, (2)Museum für Naturkunde Berlin, Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany, (3)Macau University of Science and Technology, Taipa, China, (4)Carnegie Institution for Science, Department of Earth and Environmental Sciences, Washington, DC, United States, (5)German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany
On the Role of Mantle Overturn during Magma Ocean Solidification (259281)
Charles-Édouard Boukaré1, Edgar Parmentier2 and Stephen Wayne Parman1, (1)Brown University, DEEPS - Dept of Earth, Environmental and Planetary Sciences, Providence, United States, (2)Brown University, Providence, RI, United States
Redox Evolution in Magma Oceans Due to Ferric/Ferrous Iron Partitioning (287949)
Laura Schaefer, Arizona State University, Tempe, AZ, United States, Linda T Elkins-Tanton, Arizona State University, School of Earth & Space Exploration, Tempe, AZ, United States and Kaveh Pahlevan, SETI Institute, Mountain View, United States
Evolution of the earliest mantle caused by the magmatism-mantle upwelling feedback: Implications for the Moon and the Earth (208465)
Masaki Ogawa, University of Tokyo, Bunkyo-ku, Japan
Numerical simulations of thermo-compositional global convection with generation of proto-continental crust (Invited) (241335)
Antoine Billy Rozel, ETH Zurich Swiss Federal Institute of Technology Zurich, Zurich, Switzerland, Gregor Golabek, Universität Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany, Taras Gerya, ETH Zurich, Department of Earth and Planetary Sciences, Zurich, Switzerland, Charitra Jain, University of Durham, Department of Earth Sciences, Durham, United Kingdom and Paul J Tackley, ETH Zurich, Department of Earth and Planetary Sciences, Zürich, Switzerland
Late Tharsis tectonic activity and implications for Early Mars (224409)
Sylvain Bouley1, David Baratoux2, Nicolas Paulien1, Yves Missenard3 and Bertrand Saint-Bezar1, (1)Université Paris Sud, GEOPS, Orsay, France, (2)IFAN Cheikh Anta Diop, Dakar, Senegal, (3)*Université Paris-Saclay, UMR GEOPS, Orsay, France

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