秦皇岛市区断裂活动性的SEM研究

A STUDY OF FAULT ACTIVITIES IN THE QINHUANGDAO CITY BY MEANS OF SEM

近年来,应用断层泥扫描电子显微(SEM)构造来研究断裂的活动性,已引起了国内、外地震地质和工程地质的重视。本文通过对秦皇岛市区几条断裂带断层泥和断层泥中石英颗粒表面SEM构造特征的研究,对断裂带的相对活动时限及活动特征进行了探讨。研究成果与野外宏观调查、现场仪器测试、遥感101系统图象处理结果基本吻合,在微观领域为市区断裂活动性研究提供了依据。这说明该方法在工程地质领域具有重要的实际应用价值。

In recent years, fault activities have been studied by using a gouge scanning electron microscope ( SEM ) .This problem has attracted much attention of the earthquake geologists and the engineering geologists at home and abroad. According to the study of the structural characteristics of SEM on quartz grain surface in the faultflucan.the active period and the active characteristics of the fault zone were approached. The research results were basically with these of the field investigation, the spot instrumental determination, and the remote sensing pictorial display. The microcosmic results affords the basis for the study of the fault activities in the urban districts. This method is of very important practical value to engineering geology.