• 责任者：Pu Yanping (School of Engineering and Technology ; China University of Geosciences ; Beijing 100083 ; China) ; Sun Chunyan
• 刊名：Geological Bulletin of China
• 出版年：2009
• 卷期：28(11)
• 关键词：油气化探 ; oil and gas geochemical prospecting ; 琼东南盆地 ; Qiongdongnan Basin ; 西沙群岛 ; Xisha Islands
• 页码：p.1656-1661
• 图表：2 illus., 2 tables, 12 refs.
• 分类号：1500
• issnNo：ISSN1671-2552
• isbnNo：CN11-4648/P

Main working area of this paper is part of ocean from Qiongdongnan Basin to Xisha Trough in South China Sea. On the basis of analysis of distribution characteristics of methane, C₁/(C₂+C₃) and characteristics of hydrocarbon isotopic compositions, the authors analyzed the cause of gas hydrate and the geochemical significance of acidolysis hydrocarbon isotopic compositions. Combined geochemical data with geological data, the best block for gas hydrate bearing was selected and the occurrence of gas hydrate in the working area was prospected.