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塔里木盆地北缘的库车再生前陆逆冲造山带发育生长断层相关褶皱。根据ShowJH和SuppeJ等提出的生长断层相关褶皱模型,对该逆冲造山带的运动时间进行探讨。在地震剖面中识别出典型的生长地层和生长三角。生长地层的连续性表明,自中新世吉迪克组沉积期至今,该造山带一直处于运动速率和强度递增的活动状态,而侏罗纪至早第三纪处于较稳定的构造背景中;利用生长地层确定断层滑移的时间为晚第三纪至第四纪,反映了由北向南台阶状逆断层的依次扩展和主逆冲断裂带的转换,以及主活动带由山前向盆地不断扩展,沉积、沉降中心随之向南迁移。根据生长三角计算出的各阶段断层滑移速率,吉迪克组沉积期(距今25Ma)为0.10～0.71mm/a,康村组沉积期(距今16.9Ma)为0.13～0.40mm/a,库车组沉积期为0.76～2.11mm/a,西域组沉积期(距今2.5Ma)为1.33mm/a。库车再生前陆逆冲带的中生界烃源岩主排烃期受其所在构造带的构造运动开始时间的控制,该逆冲带构造圈闭的形成和油气运移都与断层相关褶皱作用相伴随,油气聚集发生于晚第三纪至第四纪,且北部较早、南部较晚,最靠近北缘山前的东风背斜带为吉迪克组沉积期,北部背斜带为康村组沉积期,南部背斜带为西域组沉积期。图2表1参8(王孝陵摘)
The Kuqa regeneration foreland thrust belt in the northern margin of the Tarim Basin developed growth-related fold. According to the growth-related fold model proposed by ShowJH and SuppeJ et al., The movement time of the thrust belt is discussed. Typical seismic formations and growth triangles are identified in seismic sections. The continuity of the growth strata shows that the orogenic belt has been in an active state of increasing velocity and intensity since the Miocene-Sedimentary period of the Miocene, and has been in a relatively stable tectonic setting since the Jurassic to the Early Tertiary. The stratigraphic fault determined the fault slip time from Late Tertiary to Quaternary, reflecting the successive extension of the reverse thrust faults from north to south and the conversion of the main thrust fault zone, and the continuous extension of the main activity zone from the piedmont to the basin , Deposition, settlement center followed by migration to the south. According to the calculated slip rates at various stages of the growth triangle, the sedimentary period of the Jidike Formation (25 Ma up to now) is 0.10 ~ 0.71 mm / a, that of the Kangcun Formation is 0.13 ~ 0.40 mm / a during the sedimentary period (16.9 Ma) The sedimentary period of Kuche Formation is 0.76 ~ 2.11mm / a, while that of Western Regions is 1.33mm / a during the sedimentary period (2.5Ma ago). The main hydrocarbon expulsion period of the Mesozoic source rocks in the Kuqa regeneration foreland thrust belt is controlled by the tectonic movement start time of the tectonic belt where the tectonic belt was located. Both the formation trap of the thrust belt and hydrocarbon migration are related to the fault-related fold As a result, oil and gas accumulation took place in the late Tertiary to Quaternary, and the northern part was earlier and the southern part relatively late. The Dongfeng anticline belt closest to the north margin was the Sedimentary period of the Jidike Formation and the northern anticline belt was Kang During the deposition of the village group, the southern anticline belt is the sedimentary period of the Western Group. Figure 2 Table 1 Reference 8 (Wang Xiaoling Abstract)