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通过对研究区内不同位置的5条典型地震剖面解释,发现DQ94-226测线以西的盐上地层主要发育南倾被动顶板反冲断裂,盐层发育盐枕构造和盐推覆构造,盐下地层发育断层相关褶皱和逆冲断裂带;DQ94-226测线以东的盐上地层发育向南逆冲的大型断裂,盐层发育盐推覆构造,盐下地层主要发育断层相关褶皱和突起构造(pop-up)。平衡剖面分析表明,东西两段的南北向构造缩短量具有较大的差异性,西段的构造缩短明显大于东段。沉降史分析表明自东向西,构造活动的幅度依次增大,西段的构造活动明显比东段强烈。由此认为东秋里塔格构造带可以分为东西两段,即西段的库车塔吾构造带和东段的迪那构造带。
Through the interpretation of five typical seismic sections at different locations in the study area, it is found that the salt upper strata west of line DQ94-226 is mainly developed with passive southward passive thrusting, salt pillow structure and salt nappe structure, Stratigraphic-related fault-fold and thrust belt; large faults southward thrust developed in the salt upper strata east of line DQ94-226, salt-nappe structures developed in the salt strata, and fault-related folds and protuberances in the salt formation pop-up. Balance profile analysis shows that there is a great difference in the shortening of the north-south structure between east and west sections, and the shortening of the west section is obviously larger than that of the eastern section. The analysis of the subsidence history shows that from east to west, the magnitude of tectonic activity increases in turn, and the tectonic activity in the western segment is obviously stronger than that in the eastern segment. Therefore, it can be concluded that the eastern Qiuerlitag tectonic belt can be divided into two sections east and west, namely the Kuchatawu structural belt in the west segment and the Dina tectonic belt in the eastern segment.