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从中生代早期较隐蔽与微弱的东西向褶皱与断裂、沉积岩层含火山灰并未受变质、地层超覆与不整合接触关系及岩浆活动等方面，探讨印支运动在北京地区的存在和特点；从中生代中、晚期较广泛而剧烈的北东向褶皱与断裂、地层缺失与超覆或不整合关系、火山喷发与岩浆侵入活动等方面，讨论燕山运动在北京地区的存在和特点；根据早白垩世古植物与孢粉组合特征，结合邻区资料，指出北京地区属于我国早白垩世南、北孢粉－植物地理区之间的过渡区。最后讨论早侏罗世蔡家岭组建组问题。
From the occult and faint east-west folds and faults in the early Mesozoic, the volcanic ash in the sedimentary strata has not been metamorphosed, stratigraphic overconformity and unconformity and magmatism, so as to discuss the existence and characteristics of the Indosinian movement in Beijing area; The Mesozoic and Late Mesozoic and Late Cretaceous fold and fault, the relationship between stratigraphic absence and overrun or unconformity, volcanic eruptions and magmatic intrusions, discuss the existence and characteristics of the Yanshan movement in Beijing area. According to the Early Cretaceous ancient The characteristics of plant and sporopollen assemblage combined with the data of neighboring areas indicate that Beijing area belongs to the transitional area between the south and north sporopollen-plant geographical regions of Early Cretaceous in China. Finally, we discuss the formation of the Caijialing Formation in the Early Jurassic.