东北北部中新生代盆地群构造与深部结构特征

基金项目:

中国石油天然气总公司“九五”科技攻关项目(970206-01)

国家自然科学基金项目(40372060)

详细信息

Tectonics and deep structure features of Meso-Cenozoic basin groups, northern NE China

1. International Centre for Geosciences Research and Education in NE Asia, Jilin University, Changchun 130026, China

摘要: 松辽盆地及其东西两侧的中、新生代盆地群的形成与演化表现为两大盆地构造旋回,包括两次成盆期和两次反转期。由于所处大地构造位置的岩石圈厚度、软流圈的起伏、莫霍面的埋深以及岩石圈有效弹性厚度等的差异,导致了3个盆地群的时空演化及其盆地结构特征的规律性变化。研究表明,浅层次盆地类型、断陷样式、反转构造组合以及盆地构造演化规律等明显地受深部岩石圈结构的控制和制约。
- 中新生代盆地 /
- 岩石圈结构 /
- 有效弹性厚度 /
- 构造层序 /
- 构造反转
Abstract: The formation and evolution of Meso-Cenozoic basin groups in Songliao basin and its both side areas appear two tectonic evolution cycles including two basin formation periods and two inversion periods.The differences of lithosphere thickness,asthenospheric rolling,depth of Mohr and effective elastic thickness of lithosphere in the tectonic place resulted in regularly changes of space-time evolution of three basin groups and structure features.Our study results show that the basin type,rift-depression style,inversion structure system and structural evolution regularity of shallow seated basins were evidently controlled by deep geodynamic structure of lithosphere.
- Meso-Cenozoic basin /
- lithosphere structure /
- effective elastic thickness /
- structure sequence /
- structural inversion