柴达木盆地北缘块断带的扭动构造与阿尔金构造体系的关系

依据柴达木盆地北缘块断带构造线方位的变化、深层构造与浅层构造的不吻合、左行雁列式排列和反“S”型构造组合、以及中生界地层分布由老到新由西向东迁移等特征，论证了柴达木盆地北缘块断带的形成受祁连山构造体系和阿尔金山构造体系的双重控制，北缘块断带的现今构造格局是阿尔金构造体系强烈改造的结果，在此基础上总结了柴达木盆地北缘块断带中、新生代构造演化特点。

RELATIONSHIP BETWEEN THE WRENCH STRUCTURE IN THE NORTH-MARGIN BLOCK-FAULTING BELT IN THE QAIDAM BASIN AND ALTUN TECTONIC SYSTEM

From the aspects of the change of structural line orientation and the non－ coincide of the deep and shallow structure features,the left－ handed echelon and the reverse “ S” structure assembles,and the move of Mesozoic group from old to new from west to east in the north－ margin block－ faulting belt in the the Qaidam Basin,this paper demonstrates in detail the ideas,that the north－ margin block－ faulting belt in the Qaidam Basin is shaped under the control of Qiulitage tectonic system and the reconstruction of Altun tectonic system,that the recent structural pattern in the north－ margin block－ faulting belt in the Qaidam Basin has resulted from the effect of Altun tectonic system. And on the basis of these ideas, this paper summarizes the characteristics of structural development in the north－ margin block－ faulting belt in the Qaidam Basin.