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  4. 中国科学院地球与行星物理重点实验室
Timing of lunar Mg-suite magmatism constrained by SIMS U-Pb dating of Apollo norite 78238

文献类型：期刊论文

作者Zhang, Bidong3,4; Lin, Yangting2; Moser, Desmond E.4; Warren, Paul H.3; Hao, Jialong2; Barker, Ivan R.4; Shieh, Sean R.4; Bouvier, Audrey1,4
刊名EARTH AND PLANETARY SCIENCE LETTERS
出版日期2021-09-01
卷号569页码:10
关键词U-Pb Mg-suite SIMS baddeleyite zircon lunar magma ocean
ISSN号0012-821X
DOI10.1016/j.epsl.2021.117046
英文摘要The lunar Mg-suite magmatic rocks are commonly thought to represent mafic intrusions into the anorthositic flotation crust of the lunar magma ocean (LMO). Their geochronology is, therefore, important for constraining evolution models of the LMO. Petrogenetic models of the Mg-suite hold that their parent magmas were derived from primary LMO sources (Mg-cumulates, An-rich plagioclase, and melts enriched in KREEP-potassium, rare earth elements, and phosphorus). Previous radiogenic isotopic age interpretations of Mg-suite and putatively older, related ferroan anorthosites (FANs) overlap over a 200-million-year interval. The Apollo 78238 norite is an exemplary Mg-suite rock, with a relict coarse igneous texture modified by shock metamorphism. In-situsecondary ion mass spectrometry U-Pb analyses of zircon and baddeleyite in 78238 yield discordant arrays, attributed to recent impact metamorphism, with upper intercepts that constrain its crystallization age. The four oldest baddeleyite analyses give a weighted mean Pb-207/Pb-206 age of 4332 +/- 18 Ma (2s, MSWD = 0.06, P = 0.98), which is interpreted as the crystallization age of the norite. The overlap of the baddeleyite age with previously reported Sm-Nd and Pb-Pb mineral isochron ages for 78238 (Edmunson et al., 2009) supports a moderately fast cooling of the norite. Moreover, it is distinguishably younger than the most precisely dated sample of FAN (Apollo 60025), measured at 4360 +/- 3 Ma by Sm-Nd and Pb-Pb mineral isochrons (Borg et al., 2011). Together with the baddeleyite Pb-207/Pb-206 age of Apollo Mg-suite troctolite 76535 at 4328 +/- 8 Ma (White et al., 2020), the chronological record of the 78238 norite indicates a significant Mg-suite magmatic event at 4.33 Ga and a lower age limit on LMO differentiation. (C) 2021 The Author(s). Published by Elsevier B.V.
WOS关键词EARTH ; DIFFUSION ; CRUST ; MOON ; CRYSTALLIZATION ; TEMPERATURE ; SYSTEMATICS ; EVOLUTION ; PETROLOGY ; HISTORY
资助项目Canada Research Chairs[950-229061] ; NSERC[06818-2019] ; NSERC[06310-2014] ; NSERC[2019-05911] ; Natural Science Foundation of China[41490631] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDJ-SSW-DQC001] ; China Scholarship Council[201607970013] ; NASA[80NSSC19K1238] ; NASA[80NSSC19K0794]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000671231800002
出版者ELSEVIER
资助机构Canada Research Chairs ; Canada Research Chairs ; NSERC ; NSERC ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; China Scholarship Council ; China Scholarship Council ; NASA ; NASA ; Canada Research Chairs ; Canada Research Chairs ; NSERC ; NSERC ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; China Scholarship Council ; China Scholarship Council ; NASA ; NASA ; Canada Research Chairs ; Canada Research Chairs ; NSERC ; NSERC ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; China Scholarship Council ; China Scholarship Council ; NASA ; NASA ; Canada Research Chairs ; Canada Research Chairs ; NSERC ; NSERC ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; China Scholarship Council ; China Scholarship Council ; NASA ; NASA
源URL[http://ir.iggcas.ac.cn/handle/132A11/101991]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Zhang, Bidong
作者单位1.Univ Bayreuth, Bayer Geoinst, D-95447 Bayreuth, Germany
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
3.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA 90095 USA
4.Univ Western Ontario, Dept Earth Sci, London, ON N6A 3K7, Canada
推荐引用方式
GB/T 7714		 Zhang, Bidong,Lin, Yangting,Moser, Desmond E.,et al. Timing of lunar Mg-suite magmatism constrained by SIMS U-Pb dating of Apollo norite 78238[J]. EARTH AND PLANETARY SCIENCE LETTERS,2021,569:10.
APA Zhang, Bidong.,Lin, Yangting.,Moser, Desmond E..,Warren, Paul H..,Hao, Jialong.,...&Bouvier, Audrey.(2021).Timing of lunar Mg-suite magmatism constrained by SIMS U-Pb dating of Apollo norite 78238.EARTH AND PLANETARY SCIENCE LETTERS,569,10.
MLA Zhang, Bidong,et al."Timing of lunar Mg-suite magmatism constrained by SIMS U-Pb dating of Apollo norite 78238".EARTH AND PLANETARY SCIENCE LETTERS 569(2021):10.

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来源：地质与地球物理研究所

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