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机构地区:[1]合肥工业大学资源与环境科学系
出 处:《合肥工业大学学报(自然科学版)》1994年第1期187-192,共6页Journal of Hefei University of Technology:Natural Science
摘 要:本文研究了治岭头金矿床氢、氧、碳、铅稳定同位系及包裹体成份,认为治岭头金矿床成矿物质来源于陈蔡群副变质岩系,成矿热液来源于变质水和大气降水.初始存在于富含有机质的沉积岩中的金主要以胶体或吸附状态存在,在沉积岩经受区域变质作用过程中,金大部分进入变质热液。变质岩的金丰度值不能代表源岩的金丰度值。The stable isotopes of hydrogen,oxygen,carbon, sulphur and lead of Zhilingtou gold. deposit as well as compositions of fluid inclusion are discussed. It is considered that the oreforming elements of the gold deposit originates from Chen-Cai Group para-rock series. The minerogenetic hydrothermal fluid is derived from metumorphic water and precipitated water.The gold initially existing in sedimentary rock which is enriched with organic matters is generally in a colloidal or absorbed State. When sedimentary rock undergoes the regional metamorphism,thegold comes into the metamorphic hydrothermal fluid. The abundance of gold in metmorphic rock of Chen-Cat Group is lowet than that in original sedimentary rock.
分 类 号:P618.510.1[天文地球—矿床学]
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