四川盆地及周缘地区加里东运动幕次研究现状综述

四川盆地位于上扬子北缘，前人研究表明加里东运动对四川盆地岩相古地理格局和油气分布具有重要控制作用，但已有的研究成果之间存在较大分歧。通过系统梳理和对比前人在华南板块上形成的构造认识，首先将华南板块上发生的加里东运动分为3幕:郁南运动、都匀运动和广西运动，并对华南加里东运动的构造演化进行了详细的描述；通过对比分析，归纳了加里东运动在四川盆地周缘与内部的同步响应特征；最后根据川中地区地层的剥蚀情况以及沉积环境，进一步明确了川中古隆起的构造演化，认为川中古隆起发育于兴凯地裂运动，后受到加里东期3幕运动的改造变形，最终在二叠纪前定型为大型鼻状古隆起。在此期间，川中古隆起形成了多个不整合面，发育了多套有利储层，其研究成果可以为下一步的勘探部署提供参考。 

A review of the research status of Caledonian movement stages in Sichuan Basin and surrounding areas

The Sichuan Basin is located at the northern margin of the upper Yangtze block. Previous studies have shown that the Caledonian movement has played an important role in controlling the lithofacies paleogeographic pattern and oil and gas distribution in the Sichuan Basin. However, there has been a great disagreement among them. Through systematic sorting and comparison of previous studies on the formation of regional tectonic movements, this article firstly divides the Caledonian movement in Sichuan Basin and surrounding areas into three stages:Yunan movement, Duyun movement and Guangxi movement and then describes the structural evolution of the Caledonian movement in South China in detail; Through comparative analysis, this article summarizes the synchronous response characteristics of the Caledonian movement in the Sichuan Basin and its periphery. Finally, based on the erosion of the strata in the central Sichuan Basin and the sedimentary environment, the tectonic evolution process of the Chuanzhong paleo-uplift is summarized. It is believed that the Chuanzhong paleo-uplift was undergoing the formation of the Xingkai fissure movement, and was transformed by the three-curtain movement of the Caledonian period, and finally shaped into a large nose-like paleo-uplift before the Permian. During this period, the Chuanzhong paleo-uplift formed multiple set of karst unconformity surfaces, which provided reference for the next exploration and deployment.