Geological introduction: The Liujiang Basin is a syncline structure. The stratigraphic division belongs to Shanhaiguan Community in the Yanshan Division of the North China-Northeastern Southern District. The regional stratigraphic characteristics are typical of the North China platform type. Pre-Qingbaikou metamorphic rocks are widely distributed in the periphery of the basin. The Late Proterozoic and Paleozoic are distributed on the two oblique wings. The Mesozoic strata are very similar to those in the Yanliao area, but only Jurassic exposures and syncline cores are found in this area. The magmatic rocks in the Liujiang Basin are divided into two categories: extrusive rocks and intrusive rocks.