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一般认为,今天所见巍峨的天山是一条海西地槽褶皱带山脉。依著者等实地观察结果,并非如此,而是有其比较复杂的发展史,特别表现在中新生代构造特点上。如所周知,天山地区在古生代时,确曾是个加里东一海西期地槽区。依千沟一库尔勒、三工河上游、石人子沟、祁家沟和乌鲁木齐河上游及玛纳斯河上游等剖面所见,在天山地区,位于元古界片麻岩、片岩夹大理岩之上的,大部分为奥陶纪一石炭纪的含基、中及酸性火山岩的碎屑岩建
It is generally believed that the towering Tianshan Mountain seen today is a Hercynian Trough fold belt mountain range. According to the observations by the observers on the spot, this is not the case, but rather has its more complicated history of development, especially in the structural characteristics of Mesozoic-Cenozoic. As we all know, in the Paleozoic Tianshan area, it was once a Caledonian-Hercynian terrain. According to the profiles of the Upper Cretaceous-Korla, Upper Triassic, Shirenigou, Qijiagou and upper reaches of the Urumqi River and the upper reaches of the Manas River, in the Tianshan Mountains, Above, most of the Ordovician-Carboniferous clastic rocks containing basal, middle and acidic volcanic rocks