Features of diamond in ophiolite

	Features of diamond in ophiolite
	Yang JingSui 2; Xu XiangZhen ; Bai WenJi ; Zhang ZhongMing ; Rong He
刊名	ACTA PETROLOGICA SINICA
	2014
卷号	30 期号:8 页码:2113-2124
关键词	Diamond Peridotite Chromitite Ophiolilte Tibet
ISSN号	1000-0569
英文摘要	Ophiolitic diamonds can be distinguished from kimberlitic diamonds, ultrahigh pressure (UHP) metamorphic diamonds and meteorite impact diamonds by their character and mode of occurrence. Most ophiolitic diamonds are small (mostly about 200 similar to 500 mu m across), contain distinctive inclusions and have extremely light carbon isotope compositions. All occur in oceanic mantle rocks within ophiolites emplaced in suture zones. Kimberlitin diamonds are famous for their large size (gem quality), inclusions of mantle minerals and slightly light carbon isotopes. These all occur within continental cratons. In contrast, UHP metamorphic diamonds are very small, a few microns in size, and are accompanied by carbonates and crustal minerals in subduction complexes formed during deep subduction of continental or oceanic crust. Meteorite impact diamonds are very rare, mostly a few microns in size and accompanied by minerals related to the site of impact. These four categories of diamond are obviously different in their main features and tectonic setting of formation. Thus, the newly confirmed ophiolitic diamonds represent a new occurrence of diamond on Earth.
学科主题	火成岩岩石学
WOS关键词	ZANGBO SUTURE ZONE ; MANTLE PERIDOTITE ; LUOBUSA OPHIOLITE ; SOUTHERN TIBET ; YARLUNG ; CHROMITITES
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000340023300001
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40568]
专题	中国地质科学院地质研究所
作者单位	1.CAGS, CARMA, Inst Geol, State Key Lab Continental Tecton & Dynam, Beijing 100037, Peoples R China 2.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Yang JingSui,Xu XiangZhen,Bai WenJi,et al. Features of diamond in ophiolite[J]. ACTA PETROLOGICA SINICA,2014,30(8):2113-2124.
APA	Yang JingSui,Xu XiangZhen,Bai WenJi,Zhang ZhongMing,&Rong He.(2014).Features of diamond in ophiolite.ACTA PETROLOGICA SINICA,30(8),2113-2124.
MLA	Yang JingSui,et al."Features of diamond in ophiolite".ACTA PETROLOGICA SINICA 30.8(2014):2113-2124.