| Preliminary Study on the PGE Geochemistry of the Permian Basalts in the Jinping Area |
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| 作者姓名： | 念红 申维 张学书 |
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| 作者单位： | School of Earth Sciences and Resources China University of Geosciences，School of Earth Sciences and Resources China University of Geosciences，Faculty of Land Resources Kunming University of Science and Technology Kunming650093 China，Yunnan Nonferrous Metals Geological Exploration Institute Kunming650051 China，Beijing100083 China，Beijing100083 China |
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| 基金项目： | This paper is sponsored by the International Project of Yunnan Province(2002GH11 )，the Natural Science Fund of Yunnan Province(2003D0039Q) . |
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| 摘 要： | INTRODUCTIONIn comparison with studies on the geochemistryof the REE and trace elements of the Emeishan Per-mian basalts ,there has been onlyli mited research onthe platinum group elements ( PGE) . Preli minarystudies have been carried out on the PGE geochemis-try of the basalts in the Emeishan area ( QingyingPower Station profile) and Xinjie area (Zhang andLi ,1998) ,andinthe Shuicheng and Weining areasinGuizhou (Li et al .,2003) . There are no PGEanaly-sis data of the basaltsin…
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| 关 键 词： | 二叠纪 地球化学 微量元素 迁移现象 |
| 收稿时间： | 2005-11-15 |
| 修稿时间： | 2006-03-25 |
Preliminary Study on the PGE Geochemistry of the Permian Basalts in the Jinping Area |
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| Nian Hong,Shen Wei,Zhang Xueshu.Preliminary Study on the PGE Geochemistry of the Permian Basalts in the Jinping Area[J].Journal of China University of Geosciences,2006,17(2):132-137. |
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| Authors: | Nian Hong Shen Wei Zhang Xueshu |
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| Institution: | 1. Departamento de Geología, Universidad de Atacama, Copayapu 485, Copiapó, Chile;2. Departamento de Ciencias de la Tierra, Universidad de Huelva, Campus del Carmen, 21071 Huelva, Spain |
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| Abstract: | To disclose and study the magma genesis of the Permian basalts in the Jinping (金平)area, the PGE and Au contents of the Permian basalts in the Jinping area were assayed by use of the ICP-MS method. The PGE data show relatively strong differentiation of basaltic magma in comparison with the primitive mantle. The primitive mantle-normalized pattern is a left-dipping curve of the Pd-Pt enriched type. The Pd/Ir ratios of the PGE of the Permian basalts in the Jinping area are higher than those of the primitive mantle and the upper primitive mantle and the chondrite meteorite. The Pd/Ir ramaterial source. It is concluded that they are derived from the basaltic magma of the upper mantle source with a lower melting degree, which shares the similar magma material source with the Emeishan Permian basalts as a whole. |
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| Keywords: | Permian basalts PGE geochemistry Jinping |
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