Platinum-Group Elements as
- 责任者：Guan Jianxiang (State Key Laboratory of Ore Deposit Geochemistry ; Institute of Geochemistry ; Chinese Academy of Sciences Guiyang 550002 ; China) ; Song Xieyan
- 刊名：Mineral Deposits
- 出版年：2010
- 卷期：29(2)
- 关键词：超镁铁质岩 ; ultramafics ; 铂族元素 ; platinum group elements ; 硫化物矿床 ; sulfide deposit ; 镁铁质岩 ; mafic rocks ; 四川 ; Sichuan Province
- 页码：p.207-217
- 图表：6 illus., 1 table, 55 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
Sulfides-bearing mafic-ultramafic intrusions in the central zone of the Emei Shan large igneous province within Panxi area, such as Yanghewu, Huangcaoping and Qingshuihe, are distributed between the NS-striking Anninghe fault and Mopanshan-HYuanmou fault. The barren rocks in these intrusions are similar to barren rocks in such ore-bearing intrusions as Jinbcaoshan, Yangliuping and Limahe in platinum-group element composition. High Cu/Pd values of the rocks of the intrusions indicate that the parental magmas had undergone sulfide segregation before their intrusion into the present horizon. Model calculations show that the magma underwent about 0.01% sulfide segregation before the formation of the Yanghewu intrusion, and the magmas experienced 0.035% sulfide separation before the formation of the Huangcaoping and Qingshuihe intrusions. There probably exists Ni-Cu-(PGE) sulfides at the bottom of the Yanghewu intrusion and Ni-Cu sulfide mineralizations in hidden intrusions beneath the Huangcaoping and Qingshuihe intrusions or other neighboring intrusions.