Petrology, Sedimentology, Palaeogeography, Tectonics, Paleontology and Stratigraphy were the guide of this paper and the data of drill core, logging were the research criterion.

• 本论文是以岩石学、沉积学、古地理学、构造地质学、古生物学和地层学理论为指导，以钻井岩心、测井资料为依据，进行本论文的研究工作。