| 刘秉光.中国PGE矿床类型分析[J].地质与勘探,2002,(4):1-7 |
| 中国PGE矿床类型分析 |
| DISCUSSION ON PGE DEPOSIT TYPES IN CHINA |
| 修订日期：2002-04-16 |
| DOI： |
| 中文关键词: PGE矿床 成矿元素序列 萃捕剂 地幔岩 中国 铂族元素 |
| 英文关键词: PGE deposit,ore-forming element sequence,leaching and capturing agent, mantle rocks |
| 基金项目:国家攀登计划 95 -预项目资助 |
| 刘秉光 |
| 中国科学院地质与地球物理研究所，北京100029 |
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| 中文摘要: |
| 中国PGE（铂族元素）矿床类型分析，PGE（铂族元素）矿床包括Pt,Pd,Rh,Ru,Os,Ir6种元素，它们有着很强的亲“S”性和亲“Fe”族元素性，同时和Mo,Te,As,Sb,Bi等元素也有亲缘关系。这些相关元素在不同介质中，组成不同的元素组合，叫做元素“序列”，共有7个序列，它们对PGE形成有选择性的萃取和捕获能力，叫“萃捕剂”,再加上PGE自身的地球化学差异性，就可能形成多种不同的PGE矿床类型。列举了6个矿床实例，提出了成矿五要素，分析了中国PGE矿床前景，认为成矿和地幔岩初始岩浆密切相关。 |
| 英文摘要: |
| PGEs (Platinum Group Elements like Pt, Pd, Rh, Ru, Os, and Ir) are strongly sulphophile and siderophile. PGEs are also associated with Mo, Te, As, Sb and Bi. Under different conditions, those related elements form different assemblages, which can be named as element sequence. There are seven element sequences, which have selective ability for leaching and capturing different elements of the PEGs. The selective ability may be called function of "leaching and capturing agent". The different leaching and capturing ability with different geochemistry of PGEs form different PGE deposit types. This paper takes six PGE deposits as examples, puts forward 5 factors, which affect formation of the PGE deposits, and discusses the prospect for PEG deposits in China. The author thinks that the formation of PGE deposits is close related to the initial magma of the mantle rocks. |
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