Integrated Analysis of Gravity and MT data by Geostatistical Approach

지구통계학적 방법을 이용한 포텐셜 자료와 MT 자료의 복합 해석 연구

  • Park, Gye-Soon (Dept. Earth Science Education, Seoul National University) ;
  • Oh, Seok-Hoon (Dept. Geosystem Engineering, Kangwon National University) ;
  • Lee, Heui-Soon (Dept. Science Education, Gyeongin National University of Education) ;
  • Kwon, Byung-Doo (Dept. Earth Science Education, Seoul National University) ;
  • Yang, Jun-Mo (Korea Ocean Research and Development Institute)
  • 박계순 (서울대학교 지구과학교육과) ;
  • 오석훈 (강원대학교 지구시스템공학과) ;
  • 이희순 (경인교육대학교 과학교육과) ;
  • 권병두 (서울대학교 지구과학교육과) ;
  • 양준모 (한국해양연구원 해양환경연구본부)
  • Published : 2007.06.07

Abstract

We have studied feasibility of the geostatistical approach to enhance the result of analysis of the sparsely obtained MT(Magnetotelluric) data by combining with gravity data. We have attempted to use geostatistics for integrating the MT data along with gravity data. To evaluate the feasibility of this approach, we have studied about interrelation between geological boundary and density distribution, and corrected density distribution for conversion to more sensitive to geological boundary by minimization of difference between z-directional variogram values of resistivity distribution obtained MT inversion and density distributions. Then, this method has been tested on model and field data. In model test, the results obtained were good agreement with real model. And in a real field data, the result of analysis demonstrate convincingly that our geostatistical approach is effective.