【摘要】 沙湾断裂带是珠江三角洲内的一组NW向断裂带,出露较少,以隐伏为主。在本次隐伏断裂探测过程中,采用了浅层地震反射波法、高密度电法及土壤氡气法,对沙湾断裂带中段隐伏断裂——大乌岗断裂、沙湾断裂、陈村断裂、紫坭断裂进行了综合探查,共发现7处异常,初步查明沙湾断裂带的通过位置等几何信息,为进一步进行钻孔验证奠定基础。更多还原

【Abstract】 The Shawan fault zone in the Pearl River delta consists of a group of NW-striking faults,discontinuously exposed and concealed.In the detection of this group of faults,the authors adopted the integrated geophysical-geochemical method comprising geophysical survey,shallow seismic reflection method and high-density electrical method as well as geochemical survey.Integrated survey was conducted for 4 concealed faults(Dawugang fault,Shawan fault,Chencun fault and Zini fault) which belong to the Shawan fault zone.During the detection,7 anomalies were delineated,and geometrical information concerning the fault position was preliminarily obtained,thus laying the foundation for drilling verification.更多还原