Fan Delta Sedimentary System and Facies Models of Dainan Formation of Paleogene in Gaoyou Sag

详细信息   

• 责任者：Ji Youliang (School of Geosciences ; China University of Petroleum ; Beijing 102249 ; China) ; Li Qingshan
• 刊名：Journal of Earth Sciences and Environment
• 出版年：2012
• 卷期：34(1)
• 关键词：三角洲沉积作用 ; deltaic sedimentation ; 高邮凹陷 ; Gaoyou sag
• 页码：p.9-19
• 图表：16 illus., 29 refs.
• 分类号：0803
• 出版序号：20130176
• issnNo：ISSN1672-6561
• isbnNo：CN61-1423/P

摘要

 
    

Fan delta, which is developed on the steep slope belt on the south side of the sag, is an important sedimentary facies of Dainan Formation in Gaoyou Sag of Subei Basin. According to single well and cross well sedimentary facies analysis, seismic profile reflection and sand ratio contour map analysis, planar distributions of sedimentary facies in different submembers of Dainan Formation were confirmed, and the distribution maps of sedimentary facies in different submembers were drawn. The results showed that the steep slope paleogeography in the southern part of Gaoyou Sag was a suitable condition, and sedimentary structures reflecting traction flow and gravity flow were found.