【摘要】 中国有大约26个含油气盆地。盆地主要有两种类型:(1)伸展盆地;(2)前陆(或挠曲)盆地。第一种伸展盆地主要位于东部,第二种前陆盆地主要位于中部和西北地区。本文讨论了伸展和前陆盆地的以下特征:(1)沉降史;(2)热史;(3)构造样式和运动学。结合深部地球物理和火山岩资料,确定了盆地的地球动力学背景,并且推测盆地形成与西太平洋板俯冲作用和特提斯洋闭合有关。更多还原

【Abstract】 Within the territory of the People’s Republic of China, there are about 26 sedimentary basins containing oil and gas. These basins can be classified into two main types : (1) ex-tensional basins; (2) foreland or flexural basins.Basins of the first type are situated in the northwestern and central part of China, whereas basins of the second type within the eastern China.The following structural characteristics of exteusional and flexural basins have been discussed in this paper: (1) Subsidence history; (2)thermal history and (3)structural style and Kinematics. In combination with tectonic setting analysis of geophysical data and eruptive rocks, geodynamic setting of the two types of basins are established and the formation mechanism of basin is recognized to related to subduction of west Pacific plate and closing of Tethys ocean.更多还原