The structural geometry and kinematics analysis show that lower Triassic strata are characterized by nearly N-S trending gently anticlines, while the middle-upper Triassic and Paleozoic strata have sub-E-W or NE trending in the uplift of the icrosoft-com:office:smarttags" />Sichuan Basin. These structural patterns indicate that there was a "tectonic decoupling" event during Triassic. Based on structural and sedimentary analyses, it is concluded that event briefly responded to the Indo-China orogeny and resulted in the initiation of the Weiyuan uplift. The close-relationship between the folds and fractures may have important applications in hydrocarbon exploration in Paleozoic strata of the Weiyuan uplift.