Study on Basin-Filling and Reservoir Sedimentology of Zhu Ⅲ Depression of Pearl River Mouth Basin,South China Sea

查看全文 作　　者：Nie Fengjun Department of Energy Resources, China University of Geosciences, Beijing 10008 Li Sitian Xie Xinong Wang Hua Faculty of Earth Resources, China University of Geosciences, Wuhan 430074 Zhu Weilin China National Offshore Oil Corporat 出　　处：《Journal of Earth Science》索引2000年第19卷第1期,共10页 基　　金：National Natural Science Foundation of China!(No.49732005-01) 摘　　要：Through basin-filling analysis, one coarsening-upward and two fining-upward sequences have been identified in Zhu Ⅲ depression. In accondance with the general model proposed by Ravnas and Steel (1998), the basin-filling has two large cycles—rift (sediment-balanced and -overfilled) and postrift (sedimentunderfilled and starved). During the rifting process, the rifted lake developed through three stages: early, climax and late. The sedimentary characteristics of reservoir rocks show that barrier bar, lagoon and tidal channel facies well developed in Zhuhai Formation; offshore, tidal and barrier bar well developed in Zhujiang Formation. Neighborly, Shenhu, Wenchang and Enping formations deposited in rifted lakes during Paleogene time; Zhujiang Formation deposited in bay, lagoon and shoreface in late Paleogene. Zhujiang and other formations deposited in offshore and open shallow sea to shelf. 关 键 词：ZHU Ⅲ DEPRESSION basin-fill RESERVOIR ROCK FACIES environment.