• 责任者：Long Genyuan (CAS Key Laboratory of Marginal Sea Geology ; South China Sea Institute of Oceanology ; Chinese Academy of Sciences ; Guangzhou 510301 ; China) ; Wu Shimin
• 刊名：Geotectonica et Metallogenia
• 出版年：2010
• 卷期：34（1）
• 关键词：地堑 ; grabens ; 动力学 ; dynamics ; 琼东南盆地 ; Qiongdongnan Basin
• 页码：p.48-54
• 图表：6 illus., 25 refs.
• 分类号：0300
• issnNo：ISSN1001-1552
• isbnNo：CN44-1595/P

The Qiongdongnan Basin is a Tertiary extensional basin developed on the north margin of South China Sea, with a main structural style of half-grabens. Three types of half-grabens have been identified after analyzing the geometry of the half-grabens from the seismic sections in the basin. The half-grabens mainly experienced two evolutionary stages. The tectonic history of the basin shows two stages of extension based on the integrated research of half-grabens and regional tectonic dynamics. In addition, symmetrical distribution of the half-grabens and crust structure indicated the stretching style of the basin is pure shear.