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根据近年笔者研究 ,楚雄盆地中生代以后经历三期变形作用 :早期 (燕山期 )主要发育于密者挤压逆冲带 ,显示横向置换特征。中期 (喜马拉雅早期 )是主变形期 ,西带显示由SW向NE逆冲 ,以叠瓦状逆冲构造系统为其特征。晚期 (喜马拉雅中晚期 )发育于陡坡和深切割区 ,表现为重力滑动构造。这些构造期次的确定为研究该盆地的发展、演化提供理论依据 ,亦为寻找油气资源提供靶区
According to the author’s research in recent years, the Mesozoic Chuxiong Basin experienced three stages of deformation after the Mesozoic: the early stage (Yanshanian period) mainly developed in the dense crush and thrust belt, showing lateral displacement characteristics. The metaphase (early Himalayas) was the main deformation period, and the western part of the belt was thrust from SW to NE and characterized by the imbricate thrust system. Late (Himalayan mid-late) developed in steep and deep cutting areas, showing the gravity sliding structure. The determination of these tectonic periods provides a theoretical basis for studying the development and evolution of the basin and also provides a target area for finding oil and gas resources