Investigations of Faults using array CSAMT Method

단층조사를 위한 array CSAMT 적용사례

  • Lee Sang Kyu (Korea Institute of Geology, Mining & Material) ;
  • Hwang Se Ho (Korea Institute of Geology, Mining & Material) ;
  • Lee Dong Young (Korea Institute of Geology, Mining & Material) ;
  • Lee Jin-Soo (Korea Institute of Geology, Mining & Material) ;
  • Hwang Hak Soo (Korea Institute of Geology, Mining & Material) ;
  • Park In Hwa (Korea Institute of Geology, Mining & Material)
  • 이상규 (한국자원연구소, 자원탐사연구부) ;
  • 황세호 (한국자원연구소, 자원탐사연구부) ;
  • 이동영 (한국자원연구소, 환경지질연구부) ;
  • 이진수 (한국자원연구소, 자원탐사연구부) ;
  • 황학수 (한국자원연구소, 자원탐사연구부) ;
  • 박인화 (한국자원연구소, 자원탐사연구부)
  • Published : 1998.08.01

Abstract

Array CSAMT surveys were conducted in two areas where it was not easy to identify the presence of faults only with geological survey because of thick overburden. The purpose of these surveys were to locate the faults and to delineate the deep resistivity structures around the faults. The steep dip lineaments having high contrast in resistivity laterally and the low resistive zones having some width in the resistivity sections were interpreted as faults and fracture zones associated with faults, respectively, The good applicability of array CSAMT to the investigation of fault was recognized owing to the agreement between the interpretation results of array CSAMT and the conclusive evidences collected by the following geological survey. The evidences includes the recent exposure of fault and the trajectory of fault evidences of the survey line. A comparison of the applicabilities of array CSAMT method and the resistivity method using dipole-dipole array was presented with the results of both methods along a same traverse line.