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天山造山带作为中亚造山带的重要组成部分,其演化对于中亚造山带的演化具有重要意义。天山地区出露着前寒武纪花岗岩类岩石,沿中天山呈线状分布。年代学资料显示其可分为1.4~Ga与900~Ma两期,指示天山地区分别在1.4Ga以及900Ma~经历了地壳重熔,而且900Ma~的地质热事件,影响范围可能涉及到了了整个天山地区,而造成天山地区900Ma~的花岗片麻岩部分熔融的热源可能与Rodinia超大陆相关的格林维尔造山作用有关。另外,地化数据显示该期的花岗片麻岩可能形成于大陆边缘或岛弧的构造环境。
Tianshan orogenic belt as an important part of the Central Asian orogenic belt, the evolution of the evolution of the Central Asian orogenic belt is of great significance. Precambrian granitoids rocks are exposed in the Tianshan Mountains and are linearly distributed along the middle Tianshan Mountains. Geochronology data show that it can be divided into two phases, ie, 1.4 ~ Ga and 900 ~ Ma, indicating that crustal remelting occurred at 1.4Ga and 900Ma respectively in the Tianshan area, and that geothermal events of 900Ma ~ may affect the whole Tianshan Regions, the heat source that caused the partial melting of the 900-Ma granitic gneiss in the Tianshan area may be related to the Greenville orogen related to the Rodinia supercontinent. In addition, the geochemical data show that the period of granitic gneiss may be formed in the continental margin or island arc tectonic environment.