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位于青藏高原北缘的祁连山，自晚第三纪以来随着青藏高原的隆起而强烈上升，同时沿着边界主断层向北逆冲，在其西段形成规模较大的北祁连北缘逆冲推覆构造，使山前盆地中的上第三系发生较强烈的构造变形．本文着重从上第三系的构造变形——褶皱及节理的特征进行详细地研究，根据祁连山西段旱峡—金佛寺一带１３个褶皱的枢纽产状和展布规律及２０多个点近千条节理的产状和特征，确定晚第三纪末该区的主压应力轴优势方位为ＮＥ３０°～５０°
The Qilian Mountains, located on the northern margin of the Qinghai-Tibet Plateau, have risen strongly with the uplift of the Qinghai-Tibet Plateau since the Late Tertiary and are also northward thrusting along the main fault of the border. In the western segment of the Qilian Mountains, the larger North Qilian upwind The thrust nappe structure makes the upper Tertiary in the Piedmont Basin have stronger tectonic deformation. This paper focuses on the tectonic deformation of the Tertiary-fold and joint characteristics of a detailed study, according to the western Qilian Mountains Arid Gap - Golden Buddha Temple area of 13 fold folds and distribution of the law and nearly 20 points nearly thousand It is concluded that the predominant azimuth direction of the principal compressive stress axis in this area at the end of the Late Triassic is NE30 ° ~ 50 °