Non-structural traps are well developed in Tarim Basin and the types are various. The traps include: overlap traps and cut-blocking traps relating to unconformity;buried-hill traps relating to paleo-uplift; lithologic traps relating to the sedimentation of river

delta and shallow lake. The formation of the non-stractural traps was controlled by paleostructural framework. The traps formed primarily in the Hercynian

Indo-China and Yenshan Periods and were distributed in paleouplift and paleoslope belts

thus constituting a paleouplift-buried hill-lithologic trap series.