地震研究

利用土壤氡气测量方法对沙湾断裂带中段隐伏断裂——大乌岗断裂、沙湾断裂、陈村断裂进行测量,并通过计算得到背景值及异常下限,从而圈定土壤氡气浓度异常带,最终对异常带与隐伏断裂位置的关系进行分析。结果表明:6号测线的西侧为陈村断裂通过区域,21号测线的西侧为沙湾断裂通过区域,22号测线东侧为大乌岗断裂的通过区域,为进一步验证断裂通过位置、走向和倾角奠定基础。

Using the method of soil radon concentration profile measurement,we study the Dawugang,Shawan and Chencun Faults,which are the concealed faults of middle segment of Baini-Shawan Fault Zone.We can obtain the measurement values of soil radon and delineate soil radon anomaly zones by calculating background value and anomaly threshold of soil radon.Then we analyze the relation between soil radon anomaly zones and location of concealed fault.The results show that the west of No.6 measuring line is the region where Chencun Fault runs through,the west of No.21 measuring line is the region where Shawan Fault runs through,the east of No.22 measuring line is the region where Dawugang Fault run through.It is the basis for the further verification on the location,strike and dip of Dawugang fault.

引言
1 沙湾断裂带中段主要特征
2 土壤氡气浓度剖面测量
3 测量结果讨论
4 结论

图1 研究区地质背景及测线位置图<br/>Fig.1 Geological background of study area and the location of survey line

图1 研究区地质背景及测线位置图
Fig.1 Geological background of study area and the location of survey line

表1 测线土氡浓度的背景值和均方差<br/>Tab.1 Background value and variance of soil radon concentration in measuring line

表1 测线土氡浓度的背景值和均方差
Tab.1 Background value and variance of soil radon concentration in measuring line

图2 6号测线土氡浓度测量曲线及异常带图<br/>Fig.2 Measurement curve of soil radon concentration and its abnormal band of the No.6 measuring line

图2 6号测线土氡浓度测量曲线及异常带图
Fig.2 Measurement curve of soil radon concentration and its abnormal band of the No.6 measuring line

图3 8号测线土氡浓度测量曲线及异常带图<br/>Fig.3 Measurement curve of soil radon concentration and its abnormal band of the No.8 measuring line

图3 8号测线土氡浓度测量曲线及异常带图
Fig.3 Measurement curve of soil radon concentration and its abnormal band of the No.8 measuring line

图4 15号测线土氡浓度测量曲线及异常带图<br/>Fig.4 Measurement curve of soil radon concentration and its abnormal band of the No.15 measuring line

图4 15号测线土氡浓度测量曲线及异常带图
Fig.4 Measurement curve of soil radon concentration and its abnormal band of the No.15 measuring line

图5 21号测线土氡浓度测量曲线及异常带图<br/>Fig.5 Measurement curve of soil radon concentration and its abnormal band of the No.21 measuring line

图5 21号测线土氡浓度测量曲线及异常带图
Fig.5 Measurement curve of soil radon concentration and its abnormal band of the No.21 measuring line

图6 22号测线土氡浓度测量曲线及异常带图<br/>Fig.6 Measurement curve of soil radon concentration and its abnormal band of the No.22 measuring line

图6 22号测线土氡浓度测量曲线及异常带图
Fig.6 Measurement curve of soil radon concentration and its abnormal band of the No.22 measuring line

图7 土氡测线与推测断裂相对位置图<br/>Fig.7 Measuring line of soil radon and the deduced relative position of faults

图7 土氡测线与推测断裂相对位置图
Fig.7 Measuring line of soil radon and the deduced relative position of faults

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备注

引言

1 沙湾断裂带中段主要特征

2 土壤氡气浓度剖面测量

3 测量结果讨论

4 结论

期刊信息