Distribution Characteristics of Platinum-Group Elements in the Daba-Xiugugabu Ophiolite Zone,
- 责任者：Huang Guicheng (Yichang Institute of Geology and Mineral Resources ; Yichang 443003 ; China) ; Xu Deming
- 刊名：Geology in China
- 出版年：2009
- 卷期：36(1)
- 关键词：蛇绿岩 ; ophiolite ; 铂族元素 ; platinum group elements ; 西藏 ; Tibet
- 页码：p.138-146
- 图表：2 illus., 2 tables，47 refs.
- 分类号：0801
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
Platinum-Group Element (PGE) contents and distribution patterns of different mantle peridotites from ophiolite masses (blocks) are to some extent different. Relative to things of the primitive mantle, PGE in Langcuo and Dongpo masses don’ t show distinct anomalies. The curves of primitive mantle-normalized distribution patterns are approximately even, and there exists no strong fractionation between PPGE and IPGE. These characteristics are similar to those of chromitite in ophiolites from China’ s Luobusha, Greece, Yugoslavia, Cyprus and some other regions in the world. PGE contents of chromitite are not related to base metal sulfides (BMS) contents in the same samples. PGE don’t mainly exist in BMS.