中国盆地形成的三大活动构造历史阶段

Three stages of tectonic movements in formation of petroliferous basins in China

徐旭辉 高长林 黄泽光 范小林 刘光祥 周小进 翟常博 单翔麟 吉让寿 秦德余 张渝昌

Xu Xuhui Gao Changlin Huang Zeguang Fan Xiaolin Liu Guangxiang et al

中国大陆的组成复杂而不均一,是历史上多个小型陆块会聚形成的复合大陆,基底结构各异,形成时代先后不一。中国各盆地的形成和分布取决于中国大地构造环境及其成盆体制的变化。中国盆地的形成经历了古中国陆、古亚洲陆和新亚洲大陆形成3个阶段。在陆缘和陆内两大优势的成盆构造-热体制作用下,分别形成了古中国/古亚洲构造环境的古生代盆地,新亚洲构造环境下的中新生代盆地。其中,中新生代盆地发育在会聚缩合的大陆内部,历经了3次构造变格:第一变格期为晚三叠世—早白垩世、第二变格期为晚白垩世—始新世和渐新世、第三变格期为渐新世和新近纪—现今。中新生代的盆地叠加、改造了古生代盆地,形成了复杂的盆地结构。

China's mainland, with complex and uneven components, is a composite continent, contributed by convergence of several small landmasses with different basement structures and different ages. Formation and distribution of basins in China have been controlled by tectonic settings and changes of basin-forming systems. Basins in China have been formed in 3 stages, including the formation of Paleo-China, Pal-Asia and Neo-Asia. Being affected by pericontinent-and intracontinent-dominant tectonic-thermal systems, Paleozoic basins have been formed in Paleo-China/Pal-Asia tectonic settings, and Meso-Cenozoic basins have been formed in Neo-Asia tectonic setting. The Meso-Cenozoic basins have been developed in the interior of converged and condensed continent, and have experienced 3 tectonic changes:the first one occurred during Late Triassic-Early Cretaceous, the second during Late Cretaceous-Eocene and Oligocene, and the third during Oligocene/Neogene through to the present. The Paleozoic basins have been superimposed and reformed by the Meso-Cenozoic basins, resulting in complex basin structures.

10.11743/ogg20050204