CAJ | 학술논문

库车褶皱冲断带新生代沉积了库姆格列木群和吉迪克组2套盐岩，发育复杂的盐构造，重力负载对其形成和发育具有重要影响。利用水压头分析方法，分析了重力对库车褶皱冲断带盐构造的影响。重力负载对盐岩流动的影响包括重力扩张和沉积负载2种，重力扩张作用由盐岩受自身重力控制，而沉积负载作用由上覆沉积物重力作用控制。水压头分析表明在盐岩高程大的地方，其沉积负载往往更小。在重力扩张和沉积负载共同作用下，库车褶皱冲断带不会发生由盐岩自身重力而形成的重力扩张，重力负载对库车褶皱冲断带盐岩的影响仅表现为沉积差异负载作用。
고차습추충단대신생대침적료고모격렬목군화길적극조2투염암，발육복잡적염구조，중력부재대기형성화발육구유중요영향。이용수압두분석방법，분석료중력대고차습추충단대염구조적영향。중력부재대염암류동적영향포괄중력확장화침적부재2충，중력확장작용유염암수자신중력공제，이침적부재작용유상복침적물중력작용공제。수압두분석표명재염암고정대적지방，기침적부재왕왕경소。재중력확장화침적부재공동작용하，고차습추충단대불회발생유염암자신중력이형성적중력확장，중력부재대고차습추충단대염암적영향부표현위침적차이부재작용。
Kumugeliemu Group and Jidike Formation with complex salt tectonics are well developed in Kuqa Fold Thrust Belt (KFTB). Gravitational loading has an important impact on their formation and development. In this paper, hydraulic head-gradient analysis was conducted to investigate the influence of gravity on salt tectonics in the Kuqa Fold Thrust Belt. Gravitational load in-cludes gravitational expansion and sedimentary load. Gravitational expansion is caused by the gravity of salt itself, while sedimentary load is formed by the gravity of the overlying sediments. Hydraulic head-gradient analysis shows that, where the salt elevation is high-er, the sedimentary load is much lower. Under the joint action of the two effects, salt gravitational expansion cannot happen in KFTB. Only the sediment differential load could cause the salt flow from the depocenter to its edge.