• 责任者：Li Mao (Faculty of Earth Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Li Shengli
• 刊名：Geoscience
• 出版年：2013
• 卷期：27(4)
• 关键词：扇形三角洲 ; fan deltas ; 北部湾 ; Beibu Gulf
• 页码：p.915-924
• 图表：9 illus., 1 table, 25 refs.
• 分类号：0803
• issnNo：ISSN1000-8527
• isbnNo：CN11-2035/P

     Fan deltas of the abrupt slope and the gentle slope areas, were developed in the W11 area of 1st Member of the Liushagang Formation in Southwestern Weizhou Depression, Beibuwan Basin. Based on the lithology, logging and seismic data, the different characteristics between these two kinds of fan deltas were analyzed and the main controlling factors of the fan delta were discussed. The fan deltas at abrupt slope area, which were mainly distributed at the steep slope zone of the middle part of 1st Member of the Liushagang Formation in the northern of the study area, were comparatively coarse grain-sized and were mainly thick-layer sandstone rock deposited from the gravity flow, with large depositional thickness and small scale planar distribution.