华北北部断块构造及中下地壳的构造滑脱

The Faulting-Block Tectonics and Structural Detachment between Middle and Lower Crust in the North Part of North China

本文根据浅表断裂构造、结晶基底、地震活动以及地震转换波测深等资料,对华北北部地壳浅部和深部的层-块构造特征作了进一步的研究,划分了浅部和中上地壳断块构造,并初步确认了中下地壳之间存在普遍的、定向的构造滑脱现象,进而揭示了地壳构造变动具有层-块滑移的特征。

Based on the data of the shallow surface faulting structures,the crystalline basement,the seismic activity and the deep sounding by converted waves from earthquakes and so forth, we have further studied on the layer-block structural characteristics in the crustal shallow and deep parts in the northern part of North China,have subdivided the faulting-block tectonics for shallow and middle -upper crust,have initially affirmed the phenomenon of the generalizationally and directionally structural detachment between middle and lower crust,and have explored the characteristics of the lager-block sliding in the crustal structural movement.