摘要
中、下扬子区广为发育的前缘逆向倾滑，后缘正向倾滑和两侧为走滑断裂所限的薄皮层块构造，系挤压和拉张作用处于同一运动系统中，是由岩石的物质分层、能量分层和构造分层作用及层滑运动所致。地壳表、浅层分布的层块构造与深层的块片构造、地体构造和板块构造的倾滑、走滑机制是一致的，并与断裂力学中的滑开型、撕开型和位错构造中的刃型位错。
The thin skinned layer block structures confined by the reverse dip slip fault in a leading edge,normal dip slip fault in a back edge and strike slip faults (lateral sinistral and/or dextral fault)widely developed in the middle lower Yangtze River area,may result from layering of rock materials and energy,and structures as well as layer sliding. The mechanism for the dip slip and strike slip in the layer block structure in the shallow crust is similar to that in terrane and plate tectonics at depth,and to the origin of the slip apart and tear apart fractures in fracture mechanics and the knifeedge and helical dislocations in solid physics.
出处
《地质力学学报》
CSCD
1999年第3期53-57,共5页
Journal of Geomechanics
基金
地质力学开放研究实验室和西南石油学院油气开发重点实验室项目
关键词
中、下扬子区
倾滑断裂
走滑断裂
层滑运动
层块构造
Middle lower Yangtze River area
dip slip fault
strike slip fault
layer block structure
