在掌握珠江口盆地东沙隆起年代地层、生物地层和岩石地层信息的基础上,通过对测井/录井、地震、古生物、岩心及成岩等相关资料的研究,将珠江组划分出四个三级层序和五个层序界面,归纳出四类界面标志,即沉积标志、成岩标志、测井标志和地震标志.各种界面标志的识别方法都有其特点和局限,实际应用时应综合利用,相互印证,以使层序界面划分更具有可靠性和精确性.

On the basis of available information of chronostratigraphy, biostratigraphy, lithology and stratigraphy, linking with the data of logging, seismic, paleontology, cores and diagenesis, the Tertiary Zhujiang Formation in Dongsha uplift can be divided into four 3rd grade sequences and five sequence boundaries. Four types of interface marks are classified, i.e. depositional mark, diagenetic mark, logging mark and seismic mark. These interfaces marks are of their own predominance and limitation so that they need confirm from each other when they are used to obtain more reliable and accurate division of sequence boundaries.