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冈底斯—念青唐古拉构造带(以下简称冈念构造带)是挟持在藏北班公湖—怒江板块缝合带与藏南雅鲁藏布江板块缝合带之间的复杂构造带。本文根据冈念构造带及其相邻的各类地质资料的分析,从地球岩石圈板块运动的三种基本形式(分离、相对滑动、并合)出发,把控制冈念构造带的基本构造单元由北而南划分为:北侧陆壳板块被动边缘带,班公湖一怒江板块缝合带,白垩纪边缘海盆带,革吉—申扎岛弧与大陆碰撞带,岛弧—岛弧杂岩带,当雄(北北东向)转换断层滑动带,中生代中期拗陷带,雅鲁藏布江板块缝合带,南侧印度板块主动边缘带。(图1)它们各具特
The Gangdise-Nyainqentangljian structural belt (hereinafter referred to as Gangnian structural belt) is a complex structural belt held between the suture zone of the Banghu-Nujiang plate in northern Tibet and the suture zone of the Brahmaputra plate in the south of Tibet. Based on the analysis of the Gangyan structural belt and its adjacent geological data, based on the three basic forms of lithospheric plate movement (separation, relative sliding and merging), the basic structural units It is divided into north and south by the passive margin zone of the continental crust plate on the north side, the belt of the Bangong-Nujiang plate, the marginal sea basin of the Cretaceous, the collision zone of the Geji-Shenzhan arc and the mainland, the island arc-island arc complex Belt, Dangxiong (North-Eastward) transitional fault zone, Meso-Cenozoic depression zone, Brahmaputra plate suture zone, and South India plate active margin zone. (Figure 1) They each have special