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Article

A Petrologic and Noble Gas Isotopic Study of New Basaltic Eucrite Grove Mountains 13001 from Antarctica

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Institution of Meteorites and Planetary Materials Research, Guilin University of Technology, Guilin 541006, China
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Key Laboratory of Lunar and Deep Space Exploration, Chinese Academy of Sciences, Beijing 100029, China
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Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration, Guilin University of Technology, Guilin 541006, China
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College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541006, China
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Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
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Author to whom correspondence should be addressed.
Academic Editor: Roman Skála
Minerals 2021, 11(3), 279; https://doi.org/10.3390/min11030279
Received: 3 February 2021 / Revised: 26 February 2021 / Accepted: 6 March 2021 / Published: 9 March 2021
(This article belongs to the Section Mineral Geochemistry and Geochronology)
Howardite-Eucrite-Diogenite (HED) meteorite clan is a potential group of planetary materials which provides significant clues to understand the formation and evolution of the solar system. Grove Mountains (GRV) 13001 is a new member of HED meteorite, recovered from the Grove Mountains of Antarctica by the Chinese National Antarctic Research Expedition. This research work presents a comprehensive study of the petrology and mineralogy, chemical composition, noble gas isotopes, cosmic-ray exposure (CRE) age and nominal gas retention age for the meteorite GRV 13001. The output data indicate that GRV 13001 is a monomict basaltic eucrite with typical ophitic/subophitic texture, and it consists mainly of low-Ca pyroxene and plagioclase with normal eucritic chemical compositions. The noble gas based CRE age of the GRV 13001 is approximately 29.9 ± 3.0 Ma, which deviates from the major impact events or periods on the HED parent body. Additionally, the U,Th-4He and 40K-40Ar gas retention ages of this meteorite are ~2.5 to 4.0 Ga and ~3.6 to 4.1 Ga, respectively. Based on the noble gases isotopes and the corresponding ages, GRV 13001 may have experienced intense impact processes during brecciation, and weak thermal event after the ejection event at approximately 30 Ma. View Full-Text
Keywords: Antarctic eucrite GRV 13001; petrology and mineralogy; noble gas; CRE age; gas retention age Antarctic eucrite GRV 13001; petrology and mineralogy; noble gas; CRE age; gas retention age
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MDPI and ACS Style

Zhang, C.; Miao, B.; He, H.; Chen, H.; Ranjith, P.M.; Xie, Q. A Petrologic and Noble Gas Isotopic Study of New Basaltic Eucrite Grove Mountains 13001 from Antarctica. Minerals 2021, 11, 279. https://doi.org/10.3390/min11030279

AMA Style

Zhang C, Miao B, He H, Chen H, Ranjith PM, Xie Q. A Petrologic and Noble Gas Isotopic Study of New Basaltic Eucrite Grove Mountains 13001 from Antarctica. Minerals. 2021; 11(3):279. https://doi.org/10.3390/min11030279

Chicago/Turabian Style

Zhang, Chuantong, Bingkui Miao, Huaiyu He, Hongyi Chen, P. M. Ranjith, and Qinglin Xie. 2021. "A Petrologic and Noble Gas Isotopic Study of New Basaltic Eucrite Grove Mountains 13001 from Antarctica" Minerals 11, no. 3: 279. https://doi.org/10.3390/min11030279

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