断层擦痕是指断层两盘相对错动时留下的痕迹,即在断层面上产生的沟槽状细微平行刻痕。组成断层擦痕的擦沟或擦槽往往一端宽且深,另一端窄而浅并逐渐消失,根据它的延长方向及擦槽形状,可以判别断层两盘相对运动的方向。手摸断层擦痕,有光滑感的方向代表断层另一盘滑动的方向。
柱状节理面上未见断层擦痕或任何移动的证据。
Joint surfaces of the columns do not show slickensides or any evidence of movement.
利用共轭节理和断层擦痕反演,对矿区构造应力场进行了定向、定时研究,确定了各期构造应力场。
Inversion of the conjugate joints and striation is used to study orientation and timing of the tectonic stress field and define the stages of the field.
次级断层和一些相关伴生构造(擦痕线理)的特征表明了本区逆冲推覆构造系统的逆冲方向为南东-北西向。
Thrusting direction of this system is from southeast to northwestjudging by some characteristics of secondary faults and the associated structures (scratchlineation).
应用推荐