扬子地台北缘中段中上元古界中金、银矿床稳定同位素地球化学研究

来源期刊：中南大学学报(自然科学版)1991年第6期

论文作者：汪东波

文章页码：14 - 20

关键词：稳定同位素地球化学; 金银矿床; 扬子地台北缘中段

Key words：stable isotopic geochemistry; gold-silver deposit; middle section of northern margin of Yangtze Platform

摘    要：本文系统地研究了扬子地台北缘中段中上元古界中金银矿床的硫、铅、碳、氢、氧同位素组成。研究表明:银洞沟Au-Ag-Pb-Zn矿床、许家坡Au-Ag-Te矿床和白岩沟Au矿床的成矿物质具深源特征,成矿流体为混有少量大气水和岩浆水的变质流体;东沟坝Au-Ag-Pb-Zn重晶石型矿床成矿物质及成矿流体皆具多来源的特征。

Abstract: Compositions of S, Pb, C, H, O of gold-silver deposits in the Middle-Upper Proterozoic Suberathem in the middle section of the northern margin of Yangtze Platform bare been systematically studied in this paper. Studies show that ore-forming materials of Yingdonggou Au-Ag-Pb-Zn deposit, XujiapoAu-Ag-Te deposit and Beiyangou gold-bearing quartze vein deposit have cha-racteristics of deep source; ore-forming fluids of them are metamorphic fluid and a mixture of a small quantity of magmatic water and meteroic water. Ore-forming material and ore-forming fluid of Donggoubar Au-Ag-Pb-Zn-baritedeposit both have characteristics of multi-source.