摘要
在伸展构造地区，大规模断层的几何学和运动学研究不仅可以评估特殊的关键细节，而且可以了解拉张性质及伸张量。以单剪假定为基础，考虑压实作用的影响，并对剖面进行校正，建立反演断层数学模型。将其应用于苏北溱潼凹陷，模拟给出了３条剖面的主断层形态和滑脱深度，结果表明该区边界断层的滑脱深度在８～１０ｋｍ左右、它为该区运动学模拟的开展提供了断层边界条件。此模型同样适用于挤压构造地区。
in regions of extensional tectonics,a knowledge of the geometry and kinematics of largescale faults is essential, not only in evaluating particular commercial prospects,but also in understanding the nature and amount of extension involved. Based on simple shear and compaction effect and influence of slanting cross section .mathematical model of fault inversion has been established. The shape and the detachment depth of main faults in three profiles have been simulated by applying this model to the studies of Qintong basin in the northern Jiangsu. It is concluded that detachment depth of boundaryfault is from 8 to 10km in this region .which provides conditions of fault boundary for the kinematicsimulation. This model is equally valid in regions of compressional tectonics.
出处
《成都理工学院学报》
CSCD
1994年第1期91-98,共8页
Journal of Chengdu University of Technology
关键词
几何学
断层
数学模型
溱潼凹陷
geometry, fault inversion, mathematical model, Qintong basin
