山西原平狐狸山金矿床稀土、微量元素地球化学和稳定同位素研究

TRACE ELEMENT GEOCHEMICAL AND STABLE ISOTOPIC STUDY OF THE HULISHAN GOLD DEPOSITS IN YUANPING, SHANXI PROVINCE

对五台山西部狐狸山金矿的矿床地质特征、微量和稀土元素地球化学特征以及成矿作用过程中S、H、O、C、Pb等同位素组成特征进行了研究，结果表明，剪切变形是最主要的控矿因素，成矿物质主要来自绿岩层，成矿的热液流体具有混合成因的特征，成矿时代为（2230±130）Ma，因而本区绿岩带金矿属后生成因，富集成矿机制是剪切变形活化作用。

The geological and trace element geochemical characteristics show that shear deformation zone should be the principal controlling factors of the gold mineralization at Hulishan gold deposits in western Wutaishan region, Shanxi Province. The REE patterns and S, H O, C, Ph stable isotope data indicate that metallogenetic materials come principally from greenstone strata, and ore-forming hydrothermal fluid is characterized by multiple sources. The gold mineralization took place (2230 ±130) Ma ago based on the Pb-Pb dating on pyritos, which suggests the greenstone-type gold deposit formed after the wall rocks. It can be concluded that the enrichment mineralization depends on shear deformation mobilization.