Diamonds in Ophiolites

doi:10.2113/gselements.10.2.127

	Diamonds in Ophiolites
	Yang, Jing-Sui 3; Robinson, Paul T.; Dilek, Yildirim 1
刊名	ELEMENTS
	2014
卷号	10 期号:2 页码:127-130
关键词	diamond-bearing chromitites UHP minerals podiform chromitites mantle transition zone highly reduced minerals
ISSN号	1811-5209
DOI	10.2113/gselements.10.2.127
英文摘要	Ophiogites are a newly documented host of diamonds on Earth. Abundant diamonds have indeed been separated from peridotites and chromitites of ophiolites in China, Myanmar, and Russia. In addition, diamond grains have recently been discovered in chromite from the Cretaceous Luobusa ophiolite (Tibet) and the early Paleozoic Ray-lz ophiolite (polar Urals, Russia). These diamonds are accompanied by a wide range of highly reduced minerals, such as Ni-Mn-Co alloys, Fe-Si and Fe-C phases, and moissanite (SiC); these have been found as either mineral separates or inclusions in diamonds and indicate growth under superreducing conditions. The diamond-bearing chromite grains likely formed near the mantle transition zone and were then brought to shallow levels in the upper mantle to form podiform chromitites in oceanic lithosphere. Because these diamond grains occur widely in peridotites and chromitites of many ophiolites, we refer to them as ophiolite-hosted diamonds. It is possible that such diamonds may be common in the upper oceanic mantle.
学科主题	火成岩岩石学
WOS关键词	PODIFORM CHROMITITES ; LUOBUSA OPHIOLITE ; SOUTHERN TIBET ; METAMORPHIC ROCKS ; TECTONIC IMPLICATIONS ; MINERAL INCLUSIONS ; CRUST EVIDENCE ; OCEANIC-CRUST ; MANTLE ; BEARING
WOS研究方向	Geochemistry & Geophysics ; Mineralogy
语种	英语
出版者	MINERALOGICAL SOC AMER
WOS记录号	WOS:000335940100010
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40566]
专题	中国地质科学院地质研究所
作者单位	1.[Yang, Jing-Sui; Robinson, Paul T.] Chinese Acad Geol Sci, Inst Geol, CARMA, State Key Lab Continental Tecton & Dynam, Beijing 100037, Peoples R China 2.Miami Univ, Dept Geol & Environm Earth Sci, Oxford, OH 45056 USA 3.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Yang, Jing-Sui,Robinson, Paul T.,Dilek, Yildirim. Diamonds in Ophiolites[J]. ELEMENTS,2014,10(2):127-130.
APA	Yang, Jing-Sui,Robinson, Paul T.,&Dilek, Yildirim.(2014).Diamonds in Ophiolites.ELEMENTS,10(2),127-130.
MLA	Yang, Jing-Sui,et al."Diamonds in Ophiolites".ELEMENTS 10.2(2014):127-130.