新疆锰矿成矿规律研究

最近新疆西昆仑地区锰矿勘查实现重大突破,伴随大型优质锰矿的发现和勘查,锰已成为新疆区域优势金属矿种之一。通过系统收集资料,总结新疆锰矿成矿类型及区域时空规律。指出寒武纪、二叠纪、石炭纪是新疆锰矿成矿的3个重要时代,西昆仑-昆盖山裂谷带、塔里木陆块北部边缘活动带是新疆锰矿成矿的重要构造单元,以海相沉积型锰矿为主要成矿类型。同时,对比中国南方重要锰矿成矿特征,指出新疆奥尔托喀讷什、穆呼锰矿与广西下雷超大型锰矿在地质构造背景、成矿时代、含矿建造、矿石类型等方面均有相似之处,在成矿空间上具某种“亲缘性”。新疆西昆仑穆呼-玛尔坎苏锰矿带具超大型锰矿成矿潜力。

Study on Metallogenic Regularity of Manganese Deposits of Xinjiang

Based on the latest exploration results of manganese deposits in West Kunlun, the metallogenic age, metallogenic type, sedimentary environment, palaeogeography basin and manganese-bearing formation of manganese deposits are systematically analyzed.By systematically collecting data, the metallogenic types and regional temporal and spatial regularities of manganese deposits in Xinjiang are summarized.The author pointed out that the highest peak of manganese deposits in Xinjiang is Carboniferous, followed by Permian and Cambrian.Centralized distribution.The western Kunlun-Kungaishan rift belt and the northern margin active belt of Tarim paleocontinent block was the most deposits belt.Marine sedimentary type was the major type.Comparing the metallogenic characteristics of important manganese deposits in southern China, Ortokanash and Muhu manganese deposits in Xinjiang, are smilar with the Xialei super-large manganese deposits in Guangxi such as geological structure background, metallogenic epoch, ore-bearing formation, ore type etc. There is a certain "affinity" in the metallogenic space.The author viewed that the Muhu-Malkansu manganese ore belt in West Kunlun of Xinjiang also have the metallogenic potential of super-large manganese deposits.