Unusual minerals from harzburgite, the host rock of the Luobusa chromite deposit, Tibet

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	Unusual minerals from harzburgite, the host rock of the Luobusa chromite deposit, Tibet
	Yang, JS (Yang JingSui); Zhang, ZM (Zhang ZhongMing); Li, TF (Li TianFu); Li, ZL (Li ZhaoLi); Ren, YF (Ren YuFeng); Xu, XZ (Xu XiangZhen); Ba, DZ (Ba DengZhu); Bai, WJ (Bai WenJi); Fang, QS (Fang QingSong); Chen, SY (Chen SongYong)
刊名	ACTA PETROLOGICA SINICA
	2008
卷号	24 期号:7 页码:1445-1452
关键词	Chromite Mantle Diamond Ophiolite Luobusa
ISSN号	1000-0569
英文摘要	In recent years, ultrahigh pressure minerals, such as diamond and coesite, and other unusual minerals were discovered in chromitites of the Luobusa ophiolite in Tibet, and 4 new minerals have been approved by the CNMMN. These results have raised many questions What are the occurrences of the diamonds, what is the source of their carbon and how were they formed? What is the origin of the chromites hosting the diamonds, and at what depth did they form? What is the genetic relationship between the diamonds and the host chromitites? In what geological, geophysical and geochemical enviroments can the diamonds be formed and how are they preserved? To approach these problems, we have also collected two one-ton samples of harzhurgite hosting chromitite orebodies in the Luobusa ophiolite. These samples were taken at elevations of 4040 m and 4070 m above sea level, close to chromitite orebody 31, from which the diamonds, coesite and other unusual minerals were recovered. We processed these two samples in the same manner as the chromitites and discovered diamonds and more than 50 other mineral species. These preliminary results show that the minerals in the harzburgites are similar to those in the chromitites, suggesting a genetic relationship between them.
学科主题	矿床地质
WOS关键词	PODIFORM CHROMITITES ; DIAMOND-BEARING ; HIGH-PRESSURE ; OPHIOLITE ; COESITE ; MANTLE
WOS研究方向	Geology
语种	中文
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000260313300002
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38762]
专题	中国地质调查局
作者单位	Geol Bur Xizang, Field Team 2, Lhasa 850007, Peoples R China
推荐引用方式 GB/T 7714	Yang, JS ,Zhang, ZM ,Li, TF ,et al. Unusual minerals from harzburgite, the host rock of the Luobusa chromite deposit, Tibet[J]. ACTA PETROLOGICA SINICA,2008,24(7):1445-1452.
APA	Yang, JS .,Zhang, ZM .,Li, TF .,Li, ZL .,Ren, YF .,...&Rong, H .(2008).Unusual minerals from harzburgite, the host rock of the Luobusa chromite deposit, Tibet.ACTA PETROLOGICA SINICA,24(7),1445-1452.
MLA	Yang, JS ,et al."Unusual minerals from harzburgite, the host rock of the Luobusa chromite deposit, Tibet".ACTA PETROLOGICA SINICA 24.7(2008):1445-1452.