蓟县山前土壤氡浓度与断裂和地热关系研究  

Research on the Relationship between the Soil Radon Density and Fault and Geotherm at the Foreland of Jixian Mountain,Tianjing

作　　者：姚慧敏[1] 王志刚[1] 

机构地区：[1]天津华北地质勘查局,天津300181

出　　处：《地质调查与研究》2009年第3期221-227,共7页Geological Survey and Research

基　　金：天津华北地质勘查局科技创新基金项目-华勘科基[2007]第007号

摘　　要：作者通过对天津蓟县山前地段土壤氡浓度的测量,对土壤氡-断裂-地热三者关系进行了研究,判明了这三者之间的物理相关性和形成机理的内在联系,其主要结论是:氡浓度异常与断裂构造的走向、地热异常的范围具有一致性,且氡浓度异常与地热异常具有正相关性;地下水的运移是产生氡浓度异常及地热异常的充分条件,构造破碎带是导通和富集氡浓度异常及地热异常的必要条件。在不同的构造单元中,可产生不同的热储类型。本方法可以确定地热资源的勘查方向,为地热资源的开发利用提供旁证依据。Based on the research of the soil radon density, fault structure and geotherm at the foreland of Jixian mountain, Tianjin, it is suggested that the anormaly of the soil radon density is consistent with the fault＇s trend and geotherm anomaly. The sufficient condition is the groundwater migration carrying the radon and geotherm, and the fault structure zone is the essential condition of concentrating radon, and also geothermal channel. There may be different geothermal storage type in the different geologic structure belts. The method using in this study can determine the investigation direction and provides a collateral evidences for developing geothermal resources.

关 键 词：天津蓟县 土壤氡浓度 断裂 地热 

分 类 号：P314.1[天文地球—固体地球物理学]