最近在新疆西天山西段靠近与哈萨克斯坦接界地区发现了一些金矿找矿新线索。值得特别关注的有两种矿化类型 ,有可能成为大型金矿 :即变质碳质碎屑岩型和破碎带蚀变岩型。本区首次发现了一套黑色碳质片岩和石墨片岩 ,其中发育有黄铁矿 -石英细脉 ,含金量达 9×1 0 - 6 ,与产于乌孜别克斯坦的穆龙套型金矿地质情况相似。还发现了铜 -金高含量矿化 ,即水磨沟铜金矿 ,该矿床产于一套蚀变的中 -基性火山碎屑岩中 ,矿体赋存于近东西向的断裂中 ,矿石由黄铜矿、斑铜矿、孔雀石、黄铁矿、石英、绿泥石组成 ,具角砾状构造 ,平均铜含量 6.1 % ,金含量 3 .8× 1 0 - 6 。分析了本区金矿成矿的地质特征 ,指出矿化带呈近东西向展布 ,集中于分割本区三个地体的两条大断裂附近的韧性剪切带中 ,绿片岩相的变质条件和花岗岩浆活动对金矿的富集有促进作用。这些新发现表明 ,新疆天山西段的地质条件与金矿化特征与其西部邻国地区相似 ,中亚巨型成矿带可能已东延进中国新疆地区 Recently, some new discoveries of gold deposits have been found in the western part of West Tianshan, Xinjiang, near the border with Kazakhstan. There are two types of mineralization deserving special attention, which are likely to become large gold mines: metamorphic carbonaceous clastic rock and crustal altered rock. For the first time, a series of black carbonaceous schist and graphite schist were found in this area. There are pyrite-quartz veinlets with a gold content of 9 × 10-6, which is similar to that of the Mulongtao gold deposit in Uzbekistan. The Cu-Au high-level mineralization, the Shuimogou Cu-Au deposit, was also found. The deposit is found in an altered mid-basaltic volcaniclastic deposit that occurs in near-EW faults. Ore It is composed of chalcopyrite, bornite, malachite, pyrite, quartz and chlorite with a brecciated structure with an average copper content of 6.1% and a gold content of 3.8 × 10 -6. The geological characteristics of gold mineralization in this area are analyzed. It is pointed out that the mineralized zone exhibits a nearly east-west distribution, which is concentrated in the ductile shear zone near the two major faults of the three terranes in this area. The metamorphism of the green schist facies Conditions and granite magmatism can promote gold enrichment. These new discoveries show that the geological conditions and gold mineralization features of the western Tianshan in Xinjiang are similar to those in the western neighboring countries. The huge Central Asian metallogenic belt may have been extended to the Xinjiang region of China