气候变化领域集成服务门户(CCPortal): Oldest Immiscible Silica-rich Melt on the Moon Recorded in a ~4.38 Ga Zircon

CCPortal

DOI	10.1029/2019GL085997
	Oldest Immiscible Silica-rich Melt on the Moon Recorded in a ~4.38 Ga Zircon
	Zeng X.; Joy K.H.; Li S.; Lin Y.; Wang N.; Li X.; Li Y.; Hao J.; Liu J.; Wang S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:4
英文摘要	The temporal duration of lunar-evolved magmatism is still poorly constrained. In lunar meteorite Northwest Africa (NWA) 10049, a melt inclusion-bearing zircon fragment provides a new tool to understand the composition and age of the melts from which zircon directly crystallized. The studied zircon-hosted melt inclusions are silica rich and iron poor (e.g., ~80–90 wt% SiO2; <0.5 wt% FeO), compositionally similar with immiscible silica-rich melts found in Apollo rocks. Nano-SIMS U–Pb analyses of the zircon yielded a minimum crystallization age of 4,382 ± 40 Ma, older than the ages for Apollo highly evolved alkali suite lithologies (~3.8–4.33 Ga). Our study shows that the melt inclusion-bearing zircon in NWA 10049 is the oldest microscale evidence for documenting immiscible silica-rich melts in lunar samples, suggesting that lunar-evolved silica-rich melts were prevalent as early as ~4.38 Ga. This work implies that there would be a prolonged silicic magmatism occurred on the Moon. © 2020. The Authors.
英文关键词	Iron oxides; Meteorites; Silica; Silicate minerals; Zircon; breccia; Crystallization age; lunar magma; Lunar meteorite; Melt inclusions; NWA 10049; Silicic magmatism; Temporal durations; Moon; age; breccia; chemical composition; crystallization; iron; lunar meteorite; magmatism; Moon; silica; uranium series dating; zircon; Africa
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/170666
作者单位	Center for Lunar and Planetary Sciences, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China; CAS Center for Excellence in Comparative Planetology, Hefei, China; Department of Earth and Environmental Sciences, University of Manchester, Manchester, United Kingdom; Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; Key Laboratory of Space Manufacturing Technology, Chinese Academy of Sciences, Beijing, China; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
推荐引用方式 GB/T 7714	Zeng X.,Joy K.H.,Li S.,et al. Oldest Immiscible Silica-rich Melt on the Moon Recorded in a ~4.38 Ga Zircon[J],2020,47(4).
APA	Zeng X..,Joy K.H..,Li S..,Lin Y..,Wang N..,...&Wang S..(2020).Oldest Immiscible Silica-rich Melt on the Moon Recorded in a ~4.38 Ga Zircon.Geophysical Research Letters,47(4).
MLA	Zeng X.,et al."Oldest Immiscible Silica-rich Melt on the Moon Recorded in a ~4.38 Ga Zircon".Geophysical Research Letters 47.4(2020).