Maurice, Maxime and Tosi, Nicola and Schwinger, Sabrina and Breuer, Doris and Kleine, Thorsten (2020) A long-lived magma ocean on a young Moon. Science Advances, 6 (28), eaba8949. American Association for the Advancement of Science (AAAS). doi: 10.1126/sciadv.aba8949. ISSN 2375-2548.
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Official URL: https://advances.sciencemag.org/content/6/28/eaba8949
Abstract
A giant impact onto Earth led to the formation of the Moon, resulted in a lunar magma ocean (LMO), and initiated the last event of core segregation on Earth. However, the timing and temporal link of these events remain uncertain. Here, we demonstrate that the low thermal conductivity of the lunar crust combined with heat extraction by partial melting of deep cumulates undergoing convection results in an LMO solidification time scale of 150 to 200 million years. Combining this result with a crystallization model of the LMO and with the ages and isotopic compositions of lunar samples indicates that the Moon formed 4.425 ± 0.025 billion years ago. This age is in remarkable agreement with the U-Pb age of Earth, demonstrating that the U-Pb age dates the final segregation of Earth’s core.
Item URL in elib: | https://elib.dlr.de/136732/ | ||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||
Title: | A long-lived magma ocean on a young Moon | ||||||||||||||||||
Authors: |
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Date: | 2020 | ||||||||||||||||||
Journal or Publication Title: | Science Advances | ||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||
Gold Open Access: | Yes | ||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||
Volume: | 6 | ||||||||||||||||||
DOI : | 10.1126/sciadv.aba8949 | ||||||||||||||||||
Page Range: | eaba8949 | ||||||||||||||||||
Publisher: | American Association for the Advancement of Science (AAAS) | ||||||||||||||||||
ISSN: | 2375-2548 | ||||||||||||||||||
Status: | Published | ||||||||||||||||||
Keywords: | Moon; Magma ocean | ||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||
HGF - Program Themes: | Space Exploration | ||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||
DLR - Program: | R EW - Space Exploration | ||||||||||||||||||
DLR - Research theme (Project): | R - Exploration of the Solar System | ||||||||||||||||||
Location: | Berlin-Adlershof | ||||||||||||||||||
Institutes and Institutions: | Institute of Planetary Research > Planetary Physics | ||||||||||||||||||
Deposited By: | Tosi, Nicola | ||||||||||||||||||
Deposited On: | 27 Oct 2020 07:53 | ||||||||||||||||||
Last Modified: | 27 Oct 2020 07:53 |
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