本文通过详细的沉积学研究，讨论了滇西南景谷—镇沅地区第三纪重力流的沉积特征，包括碎屑流、颗粒流和浊流三种沉积类型。它们的发育直接受印度板块与欧亚板块碰撞及其后陆内变形的控制，是区域构造事件的响应。 In this paper, the depositional characteristics of Tertiary gravity flow in Jingyu-Zhenyuan area, southwestern Yunnan, are discussed in detail by sedimentology research, including the sedimentary types of debris flow, particle flow and turbidity flow. Their development is directly controlled by the collision of the Indian plate with the Eurasian plate and its subsequent intracontinental deformation, which is the response of regional tectonic events.