联袂应用地气、射气与壤中α测量探测雅拉河地区隐伏断裂  

THE COMBINED APPLICATION OF GEOGAS PROSPECTING,RADON EMANATION MEASUREMENT AND SOIL ALPHA MEASUREMENT TO THE PROSPECTING FOR CONCEALED FAULTS IN YALA RIVER AREA

作　　者：周四春[1] 刘晓辉[1] 谷江波[2] 吕少辉[1] 王自运[1] 吴丽荣[1] 

机构地区：[1]成都理工大学核技术与自动化工程学院,四川成都610059 [2]中国水电顾问集团成都勘测设计研究院,四川成都610072

出　　处：《物探与化探》2011年第3期298-302,共5页Geophysical and Geochemical Exploration

基　　金：国家自然科学基金(41074094);华能公司"康定地区水电规划项目"资助

摘　　要：在四川康定雅拉河拟选择建设水利工程的区域,联袂应用地气、射气与壤中α三种物化探方法,开展了探测隐伏断裂的工作。采用剖面控制方式,大致按线距2 km,点距20 m,完成沿雅拉河12 km长区域的探测工作。射气、土壤α强度、稀土、重金属等12种参数的探测结果表明,沿雅拉河流域确实有隐伏断裂存在,而且由至少两条分支断裂组成,断裂宽度在40~120 m左右。A combination of geogas prospecting,radon emanation measurement and soil α measurement was employed in search for the concealed fault in Yala River area of Kangding County,Sichuan Province,which is a potential site of hydraulic engineering.Multi-section measurement composed of 4 measuring lines with a distance of 2 km was performed in a survey area 12 km in length along the Yala River.The intervals between adjacent sampling points along every line were about 20 m.12 kinds of prospecting data,such as concentrations of several rare earth elements and heavy metal elements in geogas,radon emanation concentrations and α intensities in soil were obtained.The results reflect the actual concealed fault in Yala River area,which consists at least of two branch fault,with the width of each branch fault inferred to be about 40～120 m.

关 键 词：地气测量 射气测量 土壤α测量 雅拉河地区 隐伏断裂探测 

分 类 号：P631.6[天文地球—地质矿产勘探] P632[天文地球—地质学]