Zhang, Yizhuo; Zhang, Nan; Tian, Meng (2022). Internal dynamics of magma ocean and its linkage to atmospheres. Acta geochimica, 41(4), pp. 568-591. Springer 10.1007/s11631-021-00514-x
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Geological and astronomical observations on the "lava world" of the rocky planet, with additional theoretical interpretation of Moon’s crustal formation, bring up to the occurrence of the magma ocean and lava ponds, which inherits accretion energy of rocky planetesimal and evolves with subsequent energy releases. Hemispherical or global oceans of silicate melt could be a widespread lava phase after rocky planet accretion as well as large impact and could persist on planets on orbits around other stars for various time scales. The processes of magma ocean formation and solidification change the phases, cause element segregations, and strongly affect the earliest compositional differentiation and volatile content of the terrestrial planets. They form the starting point for cooling to mildly habitable conditions and for the onset of thermally driven solid-state mantle convection. The formation and crystallization of magma oceans also influence the assembly of a core, the origin of a crust, initiation of tectonics, and formation of an atmosphere. It is inevitable to investigate the magma ocean dynamics of such an early period of Earth evolution. This review focuses on the internal dynamics of magma oceans after planetesimal accretion and planetary formation including turbulence, particle motion, and solid-state convection, which determine the associated processes of cooling, crystallization, and convection of magma ocean. Geochemical differentiation is discussed correspondingly. The thermodynamics of equilibration between a magma ocean and an overlying, outgassed atmosphere is also discussed, highlighting the need for more data on volatile solubility in silicate melts. The effect of coupling between magma ocean and solid-state mantle convection is also discussed.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Center for Space and Habitability (CSH) 08 Faculty of Science > Institute of Astronomy 08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences 08 Faculty of Science > Physics Institute |
UniBE Contributor: |
Tian, Meng (B) |
Subjects: |
500 Science > 520 Astronomy 500 Science 500 Science > 530 Physics |
ISSN: |
2096-0956 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Danielle Zemp |
Date Deposited: |
27 Feb 2023 14:12 |
Last Modified: |
29 Mar 2023 23:38 |
Publisher DOI: |
10.1007/s11631-021-00514-x |
BORIS DOI: |
10.48350/179293 |
URI: |
https://boris.unibe.ch/id/eprint/179293 |
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