Platinum Group Elements and Re-Os Isotope Geochemistry of Harzburgites from Caiziyuan Nickel Deposit in Huili County of Sichuan Province and Its Geological Significance
详细信息
- 责任者：Wang Shengwei (Chengdu Institute of Geology and Mineral Resources ; Chengdu 610081 ; China) ; Sun Xiaoming
- 刊名：Mineral Deposits
- 出版年：2013
- 卷期：32(3)
- 关键词：橄榄岩 ; peridotites ; 铼—锇计时 ; Re-Os dating ; 四川 ; Sichuan Province
- 页码：p.515-532
- 图表：8 illus., 2 tables, 93 refs.
- 分类号：0801
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
摘要
There exist lots of basic-ultrabasic rock bodies in the Caiziyuan laterite type nickel deposit in Huili County of Sichuan Province. The petrogeochemistry, platinum group elements and Re-Os isotopic geochemistry suggest that the Caiziyuan deposit was derived directly from the mantle, thus belonging to the residual harzburgite at the bottom of the normal ophiolite suite. Caiziyuan ophiolite may be a part of the relics of ancient ocean floor of small ocean basin, implying that Kunyang rift was evolved into small ocean basin where Huili Group was deposited in the late period of Mesoproterozoic.