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Session Proposal: Early Earth Origin, Composition, and Evolution (AGU25)

V009
Early Earth Origin, Composition, and Evolution

Session ID#: 251978

Session Description:
The early evolution of Earth set the stage for all subsequent planetary processes, yet it remains challenging to reconstruct. This session explores the origin, composition, and evolution of early Earth (Hadean and Paleoarchean), focusing on the critical processes that shaped our planet during its formative periods. We welcome contributions on a broad range of related topics, including proto-Earth accretion, the giant impact, magma ocean evolution, volatile delivery and loss, core formation, mantle differentiation, crust formation, proto-atmosphere and oceans, and early tectonics. Submissions employing diverse methods, such as geochemical or geophysical observations, experimental petrology, mineral physics, numerical modeling, and ab initio simulations, are all encouraged. This session aims to foster interdisciplinary dialogue to advance understanding of Earth's first billion years and provide broader insights into the evolution of terrestrial planets across the solar system and beyond.
Co-Sponsor(s):
  • DI - Study of the Earth's Deep Interior
  • MR - Mineral and Rock Physics
  • P - Planetary Sciences
  • T - Tectonophysics
Index Terms:

1027 Composition of the planets [GEOCHEMISTRY]
1030 Geochemical cycles [GEOCHEMISTRY]
1160 Planetary and lunar geochronology [GEOCHRONOLOGY]
8125 Evolution of the Earth [TECTONOPHYSICS]
Primary Convener:  Haiyang Luo, Princeton University, Department of Geosciences, Princeton, NJ, United States
Conveners:  Stephen Mojzsis, HUN-REN Research Centre for Astronomy and Earth Sciences, Budapest, Hungary, Damanveer Grewal, Yale University, Department of Earth and Planetary Sciences, New Haven, United States and Thenganodiyil Amaldev, Cochin University of Science and Technology, Department of Marine Geology and Geophysics, Cochin, India
Student/Early Career Convener:  Yiruo Xu, University of Michigan, Department of Earth and Environmental Sciences, Ann Arbor, United States
 
Constraints and Uncertainties in Earth’s Core Composition From Accretion and Core Formation (Invited) (1871500)
Rebecca A. Fischer, Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States and William F McDonough, Tohoku University, Sendai, Japan
 
Depleted mantle: Compositional diversity and distribution in the lower mantle (1878318)
Boda Liu, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China and Chuan-Zhou Liu, Institute of Geology and Geophysics, Chinese Academy of Sciences, State Key Laboratory of Lithospheric Evolution, Beijing, China
 
Substantial water retained early in Earth's deep mantle (1941403)
Wenhua Lu1, Ya-Nan Yang2, Tao Long3, Haiyang Xian1, Yuan Li4 and Zhixue Du1, (1)Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China, (2)University of Gothenburg, Gothenburg, Sweden, (3)Institute of Geology, Chinese Academy of Geological Sciences, Beijing, China, (4)Bayerisches Geoinstitut, University of·Bayreuth, Bayreuth, Germany
 
Earth's Composition: Origin, Evolution and Energy Budget (1941413)
William F McDonough, University of Maryland College Park, Geology, College Park, MD, United States
 
Volatile retention during stochastic planetary accretion (Invited) (1982404)
Yoshinori Miyazaki, Rutgers University New Brunswick, Department of Earth and Planetary Sciences, Piscataway, United States
 
Insights on Earth's U-Th-Pb Evolution from Archean Galenas (1986406)
Jeffrey D. Vervoort, Washington State University, School of the Environment, Pullman, WA, United States, Janne Blichert-Toft, Ecole Normale Supérieure de Lyon, CNRS, and Université de Lyon, Lyon, France and Catherine Chauvel, Institut de Physique du Globe de Paris, CNRS, Université Paris Cité, Paris, France
 
Limited angular momentum removal via evection resonance in the early Earth-Moon system due to Earth’s magma ocean solidification (1989955)
Raluca Rufu, Southwest Research Institute Boulder, Boulder, CO, United States and Robin M Canup, Southwest Research Institute, Boulder, United States
 
The Missing Hadean Rock Record (1992409)
Stephen Mojzsis, University of Bayreuth, Bavarian Geoinstitute (BGI), Bayreuth, Germany
See more of: Volcanology, Geochemistry and Petrology
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