气候变化领域集成服务门户(CCPortal): Discovery of Reidite in the Lunar Meteorite Sayh al Uhaymir 169

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DOI	10.1029/2020GL089583
	Discovery of Reidite in the Lunar Meteorite Sayh al Uhaymir 169
	Xing W.; Lin Y.; Zhang C.; Zhang M.; Hu S.; Hofmann B.A.; Sekine T.; Xiao L.; Gu L.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:21
英文摘要	An exceedingly small number of high-pressure polymorphs have been discovered in lunar samples. This situation does not seem to reconcile with the prolonged, intense bombardment of the lunar surface, which should produce suitable conditions for the formation of such polymorphs. Here we report the discovery of reidite, a high-pressure polymorph of ZrSiO4 with scheelite structure in lunar meteorite Sayh al Uhaymir (SaU) 169. The reidite occurs mainly as lamellae hosted within zircon, likely corresponding to a deviatoric-dominated transformation. The presence of reidite in the regolith portion of SaU 169 indicates a narrow temperature and pressure path constrained by the phase stability under low pressure and suggests heterogeneous shock features in the porous lunar regolith where the ambient temperature increases much higher than that in compact rocks. The inventory of high-pressure polymorphs might be restricted by such unusual cooling processes lunar samples experienced. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Lunar surface analysis; Silicate minerals; Tungstate minerals; Zircon; Cooling process; High-pressure polymorph; Lunar meteorite; Scheelite structure; Shock features; Suitable conditions; Temperature and pressures; Temperature increase; Meteorites; low pressure; lunar meteorite; regolith; scheelite
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169497
作者单位	School of Earth Sciences, China University of Geosciences, Wuhan, China; Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Natural History Museum Bern, Bern, Switzerland; Institute of Geological Sciences, University of Bern, Bern, Switzerland; Center for High Pressure Science & Technology Advanced Research, Shanghai, China
推荐引用方式 GB/T 7714	Xing W.,Lin Y.,Zhang C.,et al. Discovery of Reidite in the Lunar Meteorite Sayh al Uhaymir 169[J],2020,47(21).
APA	Xing W..,Lin Y..,Zhang C..,Zhang M..,Hu S..,...&Gu L..(2020).Discovery of Reidite in the Lunar Meteorite Sayh al Uhaymir 169.Geophysical Research Letters,47(21).
MLA	Xing W.,et al."Discovery of Reidite in the Lunar Meteorite Sayh al Uhaymir 169".Geophysical Research Letters 47.21(2020).