The salt structures were initiated by differential loading but not buoyancy, and it is the main mechanism of the salt structures growing slowly and stably from Miocene to middle-late Pliocene.

• 研究表明库车坳陷盐构造的成因受多重作用影响，差异负载是库车坳陷盐构造初始形成时的动力来源，中新世-上新世中晚期差异负载作用是盐构造形成与缓慢生长的主要动力。