Natural occurrence of reidite in the Xiuyan crater of China

	Natural occurrence of reidite in the Xiuyan crater of China
	Chen, M; Yin, F; 李晓东;Li, XD; Xie, XD; Xiao, WS; Tan, DY
刊名	METEORITICS & PLANETARY SCIENCE
	2013
卷号	48 期号:5 页码:796-805
英文摘要	The high-pressure minerals of reidite and coesite have been identified in the moderately shock-metamorphosed gneiss (shock stage II, 3545GPa) and the strongly shock-metamorphosed gneiss (shock stage III, 4555GPa), respectively, from the polymict breccias of the Xiuyan crater, a simple impact structure 1.8km in diameter in China. Reidite in the shock stage II gneiss displays lamellar textures developed in parental grains of zircon. The phase transformation of zircon to reidite likely corresponds to a martensitic mechanism. No coesite is found in the reidite-bearing gneiss. The shock stage III gneiss contains abundant coesite, but no reidite is identified in the rock. Coesite occurs as acicular, dendritic, and spherulitic crystals characteristic of crystallization from shock-produced silica melt. Zircon in the rock is mostly recrystallized. The postshock temperature in the shock stage III gneiss is too high for the preservation of reidite, whereas reidite survives in the shock stage II gneiss because of relatively low postshock temperature. Reidite does not occur together with coesite because of difference in shock-induced temperature between the shock stage II gneiss and the shock stage III gneiss.
学科主题	Geochemistry & Geophysics
收录类别	SCI
WOS记录号	WOS:000318877300007
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224064]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Chen, M,Yin, F,李晓东；Li, XD,et al. Natural occurrence of reidite in the Xiuyan crater of China[J]. METEORITICS & PLANETARY SCIENCE,2013,48(5):796-805.
APA	Chen, M,Yin, F,李晓东；Li, XD,Xie, XD,Xiao, WS,&Tan, DY.(2013).Natural occurrence of reidite in the Xiuyan crater of China.METEORITICS & PLANETARY SCIENCE,48(5),796-805.
MLA	Chen, M,et al."Natural occurrence of reidite in the Xiuyan crater of China".METEORITICS & PLANETARY SCIENCE 48.5(2013):796-805.