• 责任者：Hou Gangfu (Hangzhou Research Institute of Geology ; PetroChina ; Hangzhou 310023 ; China) ; Sun Xiongwei
• 刊名：Geology in China
• 出版年：2012
• 卷期：39(4)
• 关键词：扇形三角洲 ; fan deltas ; 沉积相模式 ; sedimentary facies model ; 塔里木盆地 ; Tarim Basin
• 页码：p.947-953
• 图表：3 illus., 19 refs.
• 分类号：0803
• issnNo：ISSN1000-3657
• isbnNo：CN11-1167/P

///Based on field outcrop and core observation, combined with mud logging, logging and grain size analysis, the authors found that there are prograded fan delta sediments in lower Cretaceous Kezllesu Group of Yecheng sag, which can be divided into fan delta plain, fan delta frontier underwater distributary channel, mouth bar and interdistributary bay. Fan delta plain was obviously affected by gravity flow, whereas fan delta frontier was mainly affected by traction current. Fan delta experienced progradation from the piedmont area to the faulted lake basin, forming mono-faulted fault basin tilting model in the direction of the short axis, which was steep slope on one side, and wide and gentle slope on the other side. This sedimentary model controlled not only characteristics of each unit of the fan delta but also microfacies types and sand distribution.