新疆北部准噶尔-东天山地区金矿床的硫铅碳同位素地球化学及对金成矿作用的指示

以位于西准噶尔的阔尔真阔腊、布尔克斯岱、哈图、包古图金矿；东准噶尔的科克萨依、野马泉金矿；东天山的康古尔，石英滩，红石金矿为研究重点，着重探讨了S、Pb、C同位素在本区特定构造地质条件下对金成矿作用的示踪。结果表明。主成矿期矿化剂元素硫来源于深部，有少量地壳物质混染，金属元素铅主要来源于地幔及下地壳，少量浅部铅混染。反映了本区金的来源以深源为主的特征，各类金矿矿化剂元素碳为无机碳与有机碳不同程度的混合，表明地层有机质不同程度地参与了金的运移与卸载成矿，这是本区金成矿的重要特色。本区年轻的基底、深大断裂、火山活动及地层中有机质的参与等地质条件成就了本区不同类型金矿床的成矿。

S, Pb, C isotopes geochemistry from gold deposits in Junggar-East Tianshan mountains area and the indication for gold mineralization, North Xingjiang.

This paper concentrates on gold deposits located in both western Junggar(Kuoerzhenkuola,Buerkesidai,Hatu,and Baogutu deposits)and eastern Junggar(Kekesayi and Yemaquan deposits)as well as gold deposits in eastern Tianshan Kangguer, Hongshi and Shiyingtan deposits).The gold mineralization is discussed based on S,Pb,C isotope data.The results demonstrate that sulfur comes from the mantle and has some contamination from crustal material,lead comes from the mantle and lower crust with minor contamination from upper crust and carbon is a mixture of inorganic and organic carbon at varying proportions.The specific geologieal conditions such as juvenile basement,deep faults,volcanism and involvement of organic material in the studied areas all together contribute to the mineralization of different types of gold deposits.