西藏扎格拉金矿成矿地质条件及成因初探

Geological conditions and genesis of zagra gold deposit in Tibet

西藏扎格拉金矿位于班公湖—怒江结合带(丁青结合带)南侧的昂龙日—班戈-腾冲燕山期岩浆弧带,文章通过对扎格拉金矿的区域地质成矿背景、矿床地质、控矿地质因素等多个方面的研究,认为希湖群碳炭泥质板岩是成矿的物质基础;深成岩体的侵入活动是成矿作用的驱动力;北西向韧脆性断裂构造带为金矿提供了导矿、容矿空间和合适的物化环境,从而成就了扎格拉金矿变质-热液型金矿床类型。

the zagra gold deposit in Tibet is located in the bango Tengchong magmatic arc zone in the south of Bangong Nujiang junction zone(Dingqing junction zone).Based on the study of regional geological metallogenic background,deposit geology and ore controlling geological factors of zagra gold deposit,it is considered that the carbonaceous argillaceous slate of Xihu group is the material basis of mineralization,and the intrusion of pluton is metallogenic The NW trending ductile brittle fault zone provides ore conducting,ore hosting space and suitable physicochemical environment for gold deposits,thus forming the metamorphic hydrothermal gold deposit type of zagra gold deposit.