在已有和公开发表的文献资料基础上,探讨了主要是楚科奇海陆架西部并考虑了相邻的美国海区和阿拉斯加北部沉积盆地的形成史。通过分析,划分出相当于该区已划分构造单元发展阶段的主要构造—物质成分组合,展示了由于加拿大凹陷的形成而产生的构造纲要的重建,这成为北楚科奇拗陷 Based on available and published literatures, the study mainly deals with the western part of the Chukchi Sea Shelf and considers the formation history of the adjacent United States Sea and Sedimentary Basins in northern Alaska. Through the analysis, the main tectonic-matter combination is divided corresponding to the stage of the development of tectonic units in this area, which shows the reconstruction of the tectonic framework due to the formation of the Canadian depression, which became the North Chukotka depression