贵州及其邻区寒武纪地层出露广泛,发育完整,地跨扬子、江南两区,是深入研究我国寒武纪地层极为重要的地区之一。 寒武纪时包括本区在内的中国南部广大地区均为海水淹没,这个海域隶属于古太平洋。本区西部是康滇古陆,为扬子区主要碎屑物供应地,这一点可由寒武纪各时期扬子区自西向东沉积物由粗变细以及碎屑物质及泥质含量递减的事实加以证实。本区东部为黄 The Cambrian strata in Guizhou and its adjacent areas are widely exposed and well-developed. They span the Yangtze and Jiangnan areas, and are one of the most important areas for further studying the Cambrian strata in China. During the Cambrian era, vast areas in southern China, including the area, were inundated with sea water, which belongs to the ancient Pacific Ocean. The western part of this area is the ancient Kangdian continental land, which is the major clastic supply area in the Yangtze area. This can be attributed to the fact that the sediments in the Yangtze area of ​​the Cambrian from west to east during the Cambrian period were changed from coarse to fine and with decreasing detritus and shaliness Confirmed. The eastern part of this area is yellow