根据断层泥的微观特征探讨断层的活动性

刊出日期: 1996-04-28

ACTIVITIES OF FAULTS AS DETERMINED FROM THE MICROSTRUCTURAL FEATURES OF THE CLAY GOUGE

Publish Date: 28 April 1996

摘要: 含有粘土矿物的断层泥在断层中分布较广,且易于变形,能较好地记录断层活动的历史。本文以含有粘土矿物的断层泥为试样做粘滑、蠕滑模拟实验,将实验产物与原断层泥的显微结构特征相对比,结合宏观地震地质资料进行综合分析,认为断层泥的显微结构特征与断层的粘滑、蠕滑运动有一定的关系。
- 断层泥 /
- 显微结构 /
- 粘滑 /
- 蠕滑
Abstract: Fault gouges rich in clay minerals are widely found in natural faults. The history of the activity of a fault is often recorded in the soft and easily deformed fault gouges. In the paper, a modeling of the stick-slip and creep-slip of faults with natural fault gouges is made.The nicrostructural features so produced is compared with those of natural fault gouges. An integrated analysis with the macro-seismogelogic data suggests a definite relationship between the microstructural features of fault gouges and the stick-slip or creep-slip of faults.
- fault gouge /
- microstructure /
- stick-slip /
- creep-ship