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通过对不同露头剖面和探井资料的分析 ,在吐哈盆地及邻区区分出三种不同类型沉积相 :(1)裂谷型海相火山喷发沉积相 ;(2 )裂谷型陆相火山喷发沉积相 ;(3)造山带磨拉石相。根据不同沉积相特征并结合构造分析认为 ,早二叠世在吐哈及邻区存在二种不同类型的盆地 ,即前陆盆地和裂谷盆地。同时 ,还探讨了大陆—大陆碰撞带上两种不同类型盆地的形成机理
Based on the analysis of different outcrop sections and exploration well data, three different types of sedimentary facies are distinguished in Turpan-Hami Basin and its adjacent areas: (1) rift-type marine volcanic eruptions; (2) rift-type continental volcanic eruptions Sedimentary facies; (3) Orogenic molasse. According to the characteristics of different sedimentary facies and combining with tectonic analysis, there are two different types of basins in the Turpan-Hami and neighboring areas in the Early Permian: the foreland basin and the rift basin. At the same time, the formation mechanism of two different types of basins in the continental-continental collision zone was also discussed