叠覆逆断层系统过渡带模式在塔中主垒潜山带中的应用

APPLICATION OF MODEL FOR TRANSITION ZONES IN OVERLAP REVERSE FAULTS IN BURIED HILL OF MAJOR HORSTS IN CENTRAL TARIM BASIN

应用叠覆逆断层系统的构造模式，对塔里木盆地塔中低凸起带中控制潜山形成的同向叠覆逆断层过渡带与反向在覆逆断层过渡带进行了演化机理的分析。认为同向叠覆逆断层过渡带为斜坡型，反向叠覆逆断层过渡带则为平台型；两条主断裂多期次的活动、叠覆，使过渡带内小断裂和网状裂隙发育，成为油气运移聚集的有利场所，只要存在有圈闭条件，就可以形成油气藏。

Evolution mechanism of transition zones of accordant overlap reverse fault and reversed overlap reverse fault controlling the formation of buried hill in Tazhong low uplift zone of Tarim basin was examined on the basis of structural model of overlap reverse faults.It is suggested that the former is a slope and the latter a platform.Multi-period movements and overlaps of two major faults resulted tn the associated minor faults and braided fractures in transition zones,which are beneficial to hydrocarbon migration and accumulation.Moreover,oil and gas pool can form when the trap is met.