• 责任者：Yang Ping (Research Institute of Exploration and Development ; Qinghai Oilfield Company ; PetroChina ; Lenghu 816000 ; China) ; Zhang Daowei
• 刊名：Xinjiang Petroleum Geology
• 出版年：2011
• 卷期：32(5)
• 关键词：下油砂山组 ; Lower Youshashan Formation ; 高分辨率层序地层学 ; high resolution sequence stratigraphy ; 古生态学 ; paleoecology ; 柴达木盆地 ; Qaidam Basin
• 页码：p.476-479
• 图表：2 illus., 11 refs.
• 分类号：1200
• issnNo：ISSN1001-3873
• isbnNo：CN65-1107/TE

In the chronostratigraphy framework, the Xiayoushashan Formation of Nancan-2 well in Wunan area of Qaidam Basin can be divided into two medium base-level cycles (Class-3 sequence). The changes in sedimentary environment and base-level cycles is interactional, so the sedimentary facies and paleoecology characters are significant evidences on the cycle division. Therefore, the isochronous stratigraphic framework of Wunan area is established, the relations between base-level cycles and paleontology responses are then analyzed.