- Volume 17 Issue 4
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New Equivalent Circuit Model for Interpreting Spectral Induced Polarization Anomalous Data
광대역유도분극 이상 자료의 해석을 위한 새로운 등가회로 모델
- Shin, Seungwook (Exploration Geophysics and Mining Engineering Dept., Korea Institute of Geoscience and Mineral Resources) ;
- Park, Samgyu (Exploration Geophysics and Mining Engineering Dept., Korea Institute of Geoscience and Mineral Resources) ;
- Shin, Dongbok (Department of Geoenvironmental Sciences, Kongju National University)
- Received : 2014.10.28
- Accepted : 2014.11.25
- Published : 2014.11.30
Spectral induced polarization (SIP) is a useful technique, which uses electrochemical properties, for exploration of metallic sulfide minerals. Equivalent circuit analysis is commonly conducted to calculate IP parameters from SIP data. An equivalent circuit model, which indicates the SIP response of rock, has a non-uniqueness problem. For this reason, it is very important to select the proper model for accurate analysis. Thus, this study focused on suggesting a new model, which suitable for the analysis of an anomalous SIP response, such as ore. A suitability of the new model was verified by comparing it with the existing Dias model and Cole-Cole models. Analysis errors were represented as a normalized root mean square error (NRMSE). The analysis result using the Dias model was the NRMSE of 10.50% and was the NRMSE using the Cole-Cole model of 17.03%. Howerver, because the NRMSE of the new model is 0.87%, it is considered that the new model is more useful for analyzing the anomalous SIP data than other models.
Grant : 광대역 유도분극을 이용한 정밀 탐광기술 개발
Supported by : 한국에너지기술평가원(KETEP)
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