With the study method of sequence stratigraphy and by drilling, logging, seismic and experimental ana lyzing data, 5 third-grade sequence interfaces and 4 third-grade sequences are identified for Zhujiang-Formation carbonate platform in East Pearl River Mouth Basin. Each sequence is composed of transgressive and high-stand system tracts, on the contrary, the low-stand system tract is not developed. On the basis of the fine sequence strati graphic classification and comparison, the sedimentary facies types and distributions of sequence framework are ana lyzed. The results show that the following facieses such as terrigenous deposit delta, marine deposit beach, shallow sea, open platform, platform margin and its front margin slope etc. Are mainly developed. In the study area, the sedimentary facieses are respectively divided into delta facies-shelf facies-platform front slope facies-platform margin-open platform facies-beach facies from the northwest to the southeast, among them, the delta facies and the platform front slope facies are relatively narrow-distributed.%应用层序地层学研究方法,利用钻井、测井、地震及实验分析资料,在珠江口盆地东部的珠江组碳酸盐台地识别出5个三级层序界面和4个三级层序,每个层序均由海侵体系域和高位体系域组成,不发育低位体系域.在精细层序地层划分和对比的基础上,对层序格架内的沉积相类型和沉积相分布进行了分析,认为主要发育陆源沉积的三角洲相和海相沉积的海滩相、浅海相、开阔台地相、台地边缘相及台地前缘斜坡相等,研究区从西北向东南方向沉积相分别为三角洲相—陆棚相—台地前缘斜坡相—台地边缘相—开阔台地相—海滩相,其中三角洲相和台地前缘斜坡相分布范围相对较小.
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