【摘要】 该断层是在钻孔内的第四系沉积层发现的,它与同一孔内基岩的断层倾角、性质雷同.据¹⁴C测年鉴定,断层所在的沉积物的年代为晚更新世晚期。据此认为它们是同一时期的产物,或者是此前形成的断层,近期活动的结果。结合周围钻孔和邻近基岩露头断裂的分布、产状等特征的分析对比,确定了该断层的产状是走向N55～65°W倾向SW倾角45～75°,是一条晚更新世活动的断层.更多还原

【Abstract】 This fault is developed in a drill bole of Quaternary deposit. The character and the dip of this fault is similar to the solid rock fault in same hole. According to the determination of 14C age data, the loose deposit in this drill hole is formed in Late pleistocene, thus they are thought to be the produces in the same time or represent a renewal of an ancient fault in or after the Late Pleistocene. Based on the analysis and Comparision of the characters and the occurrence of other faults which distributed in drill holes or solid rock around this hole, the fault can be determined to be a new active fault of Epipleistocene, its strike is N55°-65°w, the dip of WS and inclination is 45-75°.更多还原