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Surface Geophysical Survey for Delineation of Weathered Zone of Chojeong Area and Investigation of Fault Fracture Zones  

Kim, Ji-Soo (Dept. Earth and Environmental Sciences Institute for Basic Sciences, Chungbuk University)
Han, Soo-Hyung (Department of Groundwater Investigation, Korea Water Resources Corporation)
Publication Information
The Journal of Engineering Geology / v.17, no.4, 2007 , pp. 517-523 More about this Journal
Abstract
Geophysical surveys(seismic refraction, electrical resistivity, and ground penetrating radar) were performed to delineate the weathering zone associated with vadose water in Chojeong area and investigate the fault related fracture zones. On the basis of seismic velocity structures, weathering layer for the southwestern part is interpreted to be deeper than for the northeastern part. The depth to bedrock(i.e., thickness of weathered zone) from seismic refraction data attempted to be correlated with drill-core data and groundwater level. As for the investigation of geological discontinuities such as fault related fracture zone, seismic refraction, electrical resistivity, and ground penetrating data are compositely employed in terms of velocity and resistivity structures for mapping of surface boundary of the discontinuities up to shallow depth. Surface boundaries of fracture zone are well indicated in seismic velocity and electrical resistivity structures. Accurate estimation of weathered zone and fracture zone can be successfully available for mapping of attitude of vadose water layer.
Keywords
geophysical method; weathered zone; fracture zone; vadose water;
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  • Reference
1 대한지질공학회, 2003, 암반의 조사와 적용, 대한지질공학회-한국지질조사탐사협동조합
2 권일룡, 김지수, 김경호, 1999, 지표물리탐사 자료의 상관해석, 지구물리, 2, 75-88
3 Diprowin, 2000, Electrical resistivity processing software, Hee Song Ltd
4 Gremix, 1990, Seismic Refraction Strata Processing Software, Interpex Inc
5 Reynolds, J.M., 1997, An introduction to applied and environmental geophysics. John Wiley and Sons, New York, 789
6 한국물리탐사학회, 2002, 토목환경 분야 적용을 위한 물리탐사 실무 지침, 한국지구물리탐사학회
7 김지수, 송영수, 윤왕중, 조인기, 김학수, 2003, 물리탐사의 활용, 시그마 프레스
8 농촌진흥공사(Korea Rural Develop. Corp.), 1999, 초정미원지구 환경영향조사 보고서
9 Radpro, 2001, GPR processing software, Hee Song Ltd
10 Barazangi, M., and Brown, L., 1986, Reflection seismology, A global prospective: Am. Geophys. Union, Geodyn. Ser., 13
11 Burger, H.R., 1992, Exploration geophysics of the shallow subsurface, Prentice Hall, New York, 489
12 나기창, 1986, 충북의 자연, 충청북도교육위원회