THE COMBINED APPLICATION OF GEOGAS PROSPECTING, RADON EMANATION MEASUREMENT AND SOIL ALPHA MEASUREMENT TO THE PROSPECTING FOR CONCEALED FAULTS IN YALA RIVER AREA
ZHOU Si-chun1, LIU Xiao-hui1, GU Jiang-bo2, LV Shao-hui1, WANG Zi-yun1, WU Li-rong1
1. Chengdu University of Technology, Chengdu 610059, China;
2. Chengdu Hydroelectric Investigation and Design Institute of China Hydropower Consulting Group, Chengdu 610072, China
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.
周四春, 刘晓辉, 谷江波, 吕少辉, 王自运, 吴丽荣. 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[J]. 物探与化探, 2011, 35(3): 298-302.
ZHOU Si-chun, LIU Xiao-hui, GU Jiang-bo, LV Shao-hui, WANG Zi-yun, WU Li-rong. THE COMBINED APPLICATION OF GEOGAS PROSPECTING, RADON EMANATION MEASUREMENT AND SOIL ALPHA MEASUREMENT TO THE PROSPECTING FOR CONCEALED FAULTS IN YALA RIVER AREA. Geophysical and Geochemical Exploration, 2011, 35(3): 298-302.
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