P53F:
Accretion, Differentiation, and Early Planetary Evolution II

Submit an Abstract to this Session



Session ID#: 32222

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:

Accretion of the Iron Meteorites Parent Bodies Unraveled by Their Thermal Evolution. (232075)
Edouard Kaminski1, Angela Limare1, Balthasar Kenda2 and Marc Chaussidon1, (1)Institut de Physique du Globe de Paris, Paris, France, (2)Université de Paris, Institut de physique du globe de Paris, CNRS, Paris, France
A Mechanism for Planetesimal Mass-loss and Volatile Depletion (243731)
Francis Nimmo1, Remco Hin2, Phil J Carter2 and Carver Jay Jay Bierson3, (1)University of California, Santa Cruz, Department of Earth and Planetary Sciences, Santa Cruz, United States, (2)University of Bristol, Bristol, United Kingdom, (3)University of California Santa Cruz, Santa Cruz, United States
Element Abundances in Meteorites and the Earth: Implication for the Accretion of Planetary Bodies (239611)
Klaus Mezger, University of Bern, Bern, Switzerland, Hauke Vollstaedt, Thermo Fisher Scientific, Bremen, Germany and Alessandro Maltese, Sacramento, CA, United States
Modeling Hf-W Evolution for Earth, Moon and Mars in Grand Tack Accretion Simulations: The Isotopic Consequences of Rapid Accretion (Invited) (254389)
Nicholas Zube, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, Francis Nimmo, University of California, Santa Cruz, Department Earth and Planetary Sciences, Santa Cruz, United States, Seth A Jacobson, Bayerisches Geoinstitut, Universitaet Bayreuth, Bayreuth, Germany and Rebecca A. Fischer, Harvard University, Cambridge, MA, United States
Stable Nd isotope variations in the inner Solar System: The effect of sulfide during differentiation? (275039)
Alex McCoy-West, University of Durham, Department of Earth Sciences, Durham, United Kingdom
The last stage of Earth's formation: Increasing the pressure (216411)
Simon James Lock, Harvard University, Cambridge, MA, United States, Sarah T Stewart, University of California, Earth and Planetary Sciences, Davis, United States and Sujoy Mukhopadhyay, Arizona State University, Department of Earth and Planetary Sciences, Tempe, AZ, United States
Early Solar System Magnetism and its Implications for Planet Formation: Insights from Meteorite Paleomagnetism and Solar Physics (Invited) (252790)
Rona Oran, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States, Benjamin P Weiss, MIT, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States and Ofer Cohen, University of Massachusetts Lowell, Lowell, MA, United States

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