SEDIMENTARY FACIES AND DEPOSITIONAL MODEL OF THE NEOGENE ZHUJIANG FORMATION IN THE PEARL RIVER BASIN(EAST)

The Miocene Carbonate deposits are widely developed in the Pearl River Basin(East) over an area of about 5 million square kilometers. Reefs were the main targets in the Early stage of exploration. With the progress of geological study, lithological reservoirs have gradually become the major concern of exploration. In mean time, there is still lack of knowledge about the types of carbonate rocks and their distribution. In this paper, upon the basis of new drilling and seismic data, we made a comprehensive study of the previous research products. Our conclusion is slightly different due to the application of different carbonate and sedimentary facies classification systems. Study of sequence evolution indicates that depositional models are different in different system tracts.