| 峨眉山玄武岩中岩浆硫化物矿床Cu/Pd和Cu/Pt比值差异及意义 |
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| 引用本文：.2009.Distinction and implication of Cu/Pd and Cu/Pt ratios from magmatic sulfide deposits related to Emeishan Basalt in southwestern China[J].Mineral Deposits,28(Z):49~66 |
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| 基金项目:国家重点基础研究发展规划(973)项目 (No. 2009CB421006；2002CB412610)、四川通安-小牛场矿产远景调查项目和国家自然科学基金（编号: 40173025） |
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| 中文摘要:文章对比了中国西南地区与峨眉山玄武岩有关的主要岩浆硫化物矿床的Cu/Pd及Cu/Pt比值，结果表明，金宝山矿床矿石和围岩的Cu/Pd及Cu/Pt比值小于原始地幔值，力马河和白马寨铜镍矿床Cu/Pd及Cu/Pt比值远远大于原始地幔值，而杨柳坪则介于金宝山和力马河与白马寨之间，其Cu/Pd、Cu/Pt与原始地幔值大致相当。推测在与峨眉山玄武岩有关的基性超-基性岩带中，沿金宝山分布的基性-超基性岩体经历了铂族元素的富集过程，是中国勘探铂族元素矿床最重要的远景区之一。 |
| 中文关键词:地质学 Cu/Pd和Cu/Pt比值 岩浆硫化物矿床 铂族元素 峨眉山玄武岩 |
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| Distinction and implication of Cu/Pd and Cu/Pt ratios from magmatic sulfide deposits related to Emeishan Basalt in southwestern China |
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| Abstract:In this study, the distinction of Cu/Pd and Cu/Pt ratios of magmatic sulfides related to Emeishan basalt in southwestern China are compared and the results show that the Cu/Pd and Cu/Pd ratios of ores and wall rocks in Jinbaoshan deposit are much lower than those of primitive mantle, while the Limahe and Baimazhai are quite higher. Besides, the ratios of Yangliuping are between Jinbaoshan and Limahe or Baimazhai. These imply that the mafic-ultramafic rock bodies that related to Emeishan basalt and distributed along with Jinbaoshan have been endured the process of PGE enrichment, and thus it may be one of the most important potential targets for PGE-bearing deposits prospecting in China. |
| keywords:geology, Cu/Pd and Cu/Pt ratios, magmatic sulfide deposits, platinum group elements, Emeishan basalt |
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