• 责任者：Liu Yongli (Faculty of Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Cai Zhongxian
• 刊名：Geoscience
• 出版年：2009
• 卷期：23(6)
• 关键词：奥陶纪 ; Ordovician ; 古岩溶 ; paleokarst ; 塔里木盆地 ; Tarim Basin
• 页码：p.1121-1125
• 图表：8 illus., 16 refs.
• 分类号：1400
• issnNo：ISSN1000-8527
• isbnNo：CN11-2035/P

Based on 3-D seismic data, by applying flattening, accurate coherence analysis and seismic imaging, the karst palaeogeomorphology and palaeodrainage pattern are described and recognized, where the peculiar hydrogeomorphic phenomenon is discovered. In the light of the theory on modern river system capture, it had been south-confluence structure in the east of Block 4, Tahe Oilfield. Then, the base level of erosion had declined in the northwest, and the north border of south-confluence drainage basin was captured by underground way, so the inverted river was built-up. The evolutionary process of karst palaeodrainage pattern and drainage basin were reappeared, supplying a significant foundation for revealing Ordovician palaeo-karst built-up regular pattern for Tahe Oilfield.