【摘要】 近年来,活断联断层泥中石英表面扫描电子显微(SEM)构造特征的定性研究受到国内外学者关注。国外学者还对不同沉积环境下石英表面SEM特征进行定量研究。本文试图对我国西部一条重要活断裂——安宁河断裂带断层泥中石英碎砾表面SEM特征进行了定量研究,并估计了断层活动时期,同时对断层活动方式进行模糊综合评判。这一新的尝试,对于活断层与地震活动的研究意义是明显的。更多还原

【Abstract】 To study qualitatively the micro-textures of the fragments caused by fault movements is a new way to discover the regular pattern of the active fault in recent years. This paoer makes statisticial analysis for various SEM micro-surface textures on quartz fragments of Anninghe fault zone. It estimates the periods of the movements of the east and the west branches of the fault zone and gives a fuzzy synthetical evaluation of the patterns of the movements of the east branch. This new exploration is significant for the research on the active faults and seismicities, and the judge about the earthquake risk in this area.更多还原