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本文主要讨论了以下几点: 1.在1979年提出的层间解缚模式的基础上进一步论证了在不同的垂直力作用下(地壳下部作下沉,上升和垂直差异运动)在地壳中部软弱面附近两侧岩层(花岗岩层和玄武岩层)间的层间解缚形式,並讨论了层间解缚发生时对大震发生的影响。2.由海城、唐山这两次平推型大震后较大余震平面分布的不对称性论证了层间解缚现象的客观存在性。3.由海城、龙陵、唐山三次平推型大震后余震机制倾滑分量比主震明显增大,余震断层面走向角度在较大范围内变化以及倾滑型余震在整个下沉区的分布论证了大震发生后震中区岩层下塌至解缚区后所引起的岩石碎块间的重力调整过程。
The main points of this paper are as follows: 1. Based on the model of inter-stratified bondage proposed in 1979, it is further demonstrated that under the action of different vertical forces (subsidence, ascending and vertical differential movements in the crust) are weak in the middle of the crust The stratification between two rock formations on both sides (granite layer and basalt layer) near the surface is discussed, and the influence of inter-stratification on the occurrence of large earthquakes is discussed. 2. The asymmetric distribution of the larger aftershocks caused by the two ping-pong-type earthquakes in Haicheng and Tangshan demonstrates the objective existence of the inter-layer restraint phenomenon. 3. The slip component of the aftershock mechanism after Haipu, Longling and Tangshan three-point push-type earthquakes significantly increased compared with the main shock, the aftershock fault angle changed in a wide range, and the slip-dip aftershocks were in the entire subsidence area The distribution of the rock masses in the epicenter area shows that the gravitational adjustment process between rock fragments caused by the collapsing of the rock mass in the epicenter area after the great earthquake occurred.