土壤氡气测量技术在麻团断裂南段隐伏构造的应用研究——以鄂州岱家山地区为例  

Application and Research of Soil Radon Measurement in Hidden Structure of the Southern Segment of the Matuan Fault——A Case Study in Daijiashan Area of Ezhou

作　　者：但炳良 胡谍 张金朝 张平 Dan Bingliang;Hu Die;Zhang Jinzhao;Zhang Ping(Fifth Geological Brigade of Hubei Geological Bureau,Ezhou,China)

机构地区：[1]湖北省地质局第五地质大队,湖北鄂州

出　　处：《科学技术创新》2023年第23期84-87,共4页Scientific and Technological Innovation

摘　　要：土壤氡气测量在探寻隐伏构造的应用十分广泛。在麻团断裂南段岱家山地区沿垂直构造线布置了6条氡气剖面,用累积法进行测量。利用统计法对测量数据进行分析,确定调查区氡气的背景值和阀值。结果表明本区氡异常区位置与断裂位置具有较好的一致性,根据氡气异常推测百镰湖-庙岭倒转背斜轴部及周边产生众多张性小断层及裂隙,形成分布不均的构造破碎带,特别是5线中段可能存在断裂交汇,而麻团断裂存在极宽的断裂破碎带。Soil radon measurement is widely used in exploring hidden structures.Six radon profiles were arranged along the vertical structural line in the Daijiashan area of the southern segment of the Matuan Fault,and measurements were conducted using the cumulative method.The background and threshold values of radon gas in the survey area can be determined by analyzing the measurement data using statistical methods.The results indicate that there is good consistency between the location of the radon anomaly area and the location of the fault in this area.Based on the radon anomaly,it is speculated that there are numerous small tensile faults and fractures in the axis and surrounding areas of the Balian Lake and Miaoling inverted anticline,forming unevenly distributed structural fracture zones.Especially in the middle section of the 5th line,there may be fault intersections,while the Matuan Fault has an extremely wide fault fracture zone.

关 键 词：麻团断裂 百镰湖-庙岭倒转背斜 氡 隐伏构造 

分 类 号：P542.3[天文地球—构造地质学]