| 金川铜镍硫化物矿床岩浆通道型矿体地质地球化学特征 |
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| 引用本文： | 田毓龙,包国忠,汤中立,王玉山.金川铜镍硫化物矿床岩浆通道型矿体地质地球化学特征[J].地质学报,2009,83(10):1515-1525. |
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| 作者姓名： | 田毓龙 包国忠 汤中立 王玉山 |
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| 作者单位： | 1. 金川集团有限公司,甘肃金昌,737102
2. 长安大学国土资源学院,西安,710054 |
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| 摘 要： | 金川铜镍硫化物矿床6行富铜（铂族）矿体曾因Cu、Pt、Pd等含量明显高于相邻其它矿体而被认为是岩浆期后热液叠加作用的产物，研究发现，空间上该矿体受断层构造控制，在矿石组构、矿物组成和硫同位素组成方面与相邻岩浆融离型1号矿体一致，显示了该矿体岩浆成矿作用的特征。在元素地球化学方面，6行富铜（铂族）矿体的Cu、Ni、Pt、Pd含量及Cu/Ni比值明显高于1号主矿体，而Os、Ir、Rh、Ru却明显低于后者，同时，前者相对富含LREE，轻、重稀土分异程度高于后者。根据硫化物结晶分异过程中金属元素分配规律及稀土元素特征，阐明了6行富铜（铂族）矿体为岩浆通道型矿体，是岩浆硫化物晚期结晶的产物。矿区中西部存在的Cu、Ni、Pt、Pd、Au等含量高，而Os、Ir、Rh、Ru含量低的部位，是寻找岩浆通道型矿体的有利部位。
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| 关 键 词： | 金川矿床 岩浆通道 硫化物结晶分异 找矿 |
| 收稿时间： | 2009/6/27 0:00:00 |
| 修稿时间： | 2009/9/25 0:00:00 |
Geological and Geochemical Characteristics of the Magma Condiut Type Orebodies of Jinchuan Cu-Ni Sulfide Deposit |
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| Tian Yulong,Bao Guozhong,Tang Zhongli and Wang Yushan.Geological and Geochemical Characteristics of the Magma Condiut Type Orebodies of Jinchuan Cu-Ni Sulfide Deposit[J].Acta Geologica Sinica,2009,83(10):1515-1525. |
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| Authors: | Tian Yulong Bao Guozhong Tang Zhongli and Wang Yushan |
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| Institution: | Jinchuan Goup Ltd.,Jinchuan Goup Ltd.,Institute of Land Resources of Chang'an University,Jinchuan Group Ltd. |
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| Abstract: | The line-6 copper(PGE)-rich orebody of Jinchuan Cu-Ni sulphide deposit is considered as the product of postal magmatic hydrothermal superimposed mineralization by some researchers. From study, the orebody is controlled by fault structure in space and it is same with adjacent magma liquation 1# orebody in aspects as ore fabric, mineral composition and sulfur isotopic composition. The orebody shows characteristics of magmatic mineralization. In element geochemistry, prospecting line 6 copper(PGE)-rich orebody Cu, Ni, Pt and Pd contents and Cu/Ni value appears obviously higher than 1# main orebody, whileas, Os, Ir, Rh and Ru contents appears obviously lower than the latter. Comparatively, the former has rich LREE and differentiation of light and heavey lanthanon is higher than the latter. Based on Metal Elements distribution rules and lanthanon characteristics during the period of sulfide crystallization differentiation, this paper demonstrated prospecting line 6 copper-rich (PGE) orebody as magma condiut type orebody, it is the products of the late stage crystallization of liquid magmatic sulfide. In the Midwest of the mining area, Cu, Ni, Pt, Pd and Au contents are high. In the zone of Os, Ir, Rh and Ru low contents where is the advantage location to prospect for magma condiut type orebody. |
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| Keywords: | Jinchuan Cu-Ni Sulfide Deposit Mgama Condiut Sulfide Crystalization Differentiation Prognosis |
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