• 责任者：Chen Ping (Key Laboratory of Tectonics and Petroleum Resources ; Ministry of Education ; China University of Geosciences ; Wuhan 430074 ; China) ; Lu Yongchao
• 刊名：Chinese Journal of Geology
• 出版年：2012
• 卷期：47(1)
• 关键词：不整合 ; unconformities ; 隐蔽油气藏 ; subtle reservoir ; 准噶尔盆地 ; Junggar Basin
• 页码：p.92-101
• 图表：8 illus., 22 refs.
• 分类号：0300
• issnNo：ISSN0563-5020
• isbnNo：CN11-1937/P

The recognition of unconformities and their vertical structures is of significance for understanding the tectonic history and petroleum accumulation regularities in the Junggar Basin. According the analysis of tectonic background, outcrops, compound loggings and seismic data, it has a conclusion that there are four types unconformities：onlap/erosion truncation type, concordance/erosion truncation type, onlap/concordance type, concordance/concordance type. Four important unconformity surfaces were identified and analyzed. The unconformities in the compressional abdominal area are not only the important paths for the oil and gas migration, but also are the favorite place for the oil and gas accumulation.