| 八卦庙大型金矿床稀土元素地球化学研究 |
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| 引用本文： | 于学元,郭健.八卦庙大型金矿床稀土元素地球化学研究[J].地球化学,1996,25(2):140-149. |
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| 作者姓名： | 于学元 郭健 |
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| 作者单位： | 中国科学院广州地球化学研究所，中国有色总公司西北地质研究所 |
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| 基金项目： | 中国科学院和中关村分析测试中心资助 |
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| 摘 要： | 八卦庙大型金矿床是秦岭造山带中的一种与碳酸盐岩有关的中温热液矿床。本系统总结了该矿床的稀土元素地球化学特征，对矿石、围岩、含金石英脉、酸性岩脉、铁的硫化物中的稀土元素组成、关系及成因进行了分析研究，论证了这个金矿床的形成与围岩、酸性岩脉、地壳深部金的矿源层有关。在此基础上应用简化了的Ｇｒｅｓｅｎｓ方程－Ｇｒａｎｔ方法讨论了热液蚀变过程中稀土元素地球化学行为，并分析了样品中出现Ｃｅ和Ｅｕ异常的原因，
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| 关 键 词： | 金矿床 稀土族 地球化学 |
REE GEOCHEMISTRY OF BAGUAMIAO GOLD DEPOSIT |
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| YuXueyuan, Zheng Zuoping, Niu Hecai.REE GEOCHEMISTRY OF BAGUAMIAO GOLD DEPOSIT[J].Geochimica,1996,25(2):140-149. |
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| Authors: | YuXueyuan Zheng Zuoping Niu Hecai |
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| Abstract: | The Baguamiao gold deposit is found as a new kind of mesothermal gold deposit related to carbonate in the Qinling orogenic belt. In this paper, the REE geochemical characteristics of various representive samples including wall rock, ore, gold-bearing quartz vein, acidic vein and iron sulfides in the Baguamiao gold deposit are comprehensively summarized. The results show that gold has good relations with wall rock, acidic veins, and deep-seated gold-rich source beds. With respect to REE pattern comparison and application of Grant's isocon method, it is considered that REE is of relative immobilities during metasomatic alteration.Europium and cerium anomalies in wall rock and ore were used to discuss features of the diagenetic and tectonic environment. The gold material sources are of multi-sources, mainly deep-seated gold-rich source beds with respect of REE and mineral paragenesis etc. |
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| Keywords: | REE gold deposit Shaanxi Province |
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