• 责任者：Zhou Bin (School of Geosciences ; Yangtze University ; Wuhan 430100 ; China) ; Tang Jun
• 刊名：Sedimentary Geology and Tethyan Geology
• 出版年：2013
• 卷期：33(3)
• 关键词：高分辨率层序地层学 ; high resolution sequence stratigraphy ; 柴达木盆地 ; Qaidam Basin
• 页码：p.27-33
• 图表：6 illus., 18 refs.
• 分类号：1200
• issnNo：ISSN1009-3850
• isbnNo：CN51-1593/P

     In the light of the high-resolution sequence stratigraphic theory presented by Cross, and well logs and core observation in this study, the strata of the Upper Ganchaigou Formation in the Youshashan Oil Field, Qaidam Basin, Qinghai may be divided into 15 to 20 short-term, 6 medium-term and 1 long-term base-level cyclic sequences. The present paper focuses on the analysis of sedimentary facies and evolution within the individual cycles, construction of the high-resolution isochronous stratigraphic framework in the ascending and descending hemicycles of the medium-term cycles and sandstone distribution in the Upper Ganchaigou Formation. It is indicated that the early ascending hemicycles ,late descending hemicycles and the delta system are interpreted to be the most favourahle zones for the development of reservoir sandstones.