[논문]국내 유도분극 탐사의 연구동향

박삼규

doi:10.7582/gge.2021.24.4.202

국내 유도분극 탐사의 연구동향
Research Trends in Induced Polarization Exploration in Korea 원문보기

지구물리와 물리탐사 = Geophysics and geophysical exploration, v.24 no.4, 2021년, pp.202 - 208

초록
AI-Helper

유도분극(Induced Polarization, IP)탐사가 1973년에 국내 학술지에 처음 소개되었으며, 그 이후 석탄 및 금속광상탐사에 응용되기 시작하면서 대학 및 연구기관에서 유한요소법에 의한 IP 모델링 연구와 인공모형 시료의 유도분극반응 측정 기술이 개발되었다. 1980년 중반에 광대역유도분극(SIP) 탐사기가 국내에 도입되면서 실내 측정 및 해석 기술이 개발되었으나 자원산업의 쇠퇴와 더불어 광상탐사 현장에서 널리 활용되지는 못했다. 1990년대에는 IP탐사가 황화광물의 열수광상 및 벤토나이트 광화대 조사와 해수 침입에 의한 지하수 오염지역에 적용된 사례가 있다. 2000년대 들어서면서 IP탐사의 3차원 역해석 기술이 개발되고, 국내외 광물자원확보를 위한 정밀물리탐사 기술이 요구되면서 암석 시료의 SIP 측정 및 현장 탐사 기술이 확보되었으며, 해남지역 금은광상의 광화대 탐사에 적용한 결과 SIP탐사 기술이 황화광물을 포함하고 있는 금속광상탐사에 유용함이 입증되었다. 이러한 IP 탐사는 리튬, 코발트, 니켈과 같은 첨단 산업의 핵심광물 탐사에서 효과적일 것으로 여겨지고, 또한 환경오염과 지반조사 분야에서도 유용할 것으로 기대된다.

Abstract ▼ AI-Helper

Induced polarization (IP) was first published in a Korean academic journal in 1973, and it was soon applied to coal and metal ore exploration. Then, in universities and research institutes, IP modeling studies using the finite element approach and experimental studies on IP responses for artificial samples were conducted. In the mid-1980s, the spectral IP (SIP) measurement module was introduced to Korea, and physical scale modeling and inversion approaches were developed. Due to the decline of the mineral resource industry, this method was not actively applied. However, the SIP method was not applied In the 1990s, IP exploration was applied in the investigation of hydrothermal deposits of sulfide minerals and bentonite mineralization zones, as well as to areas where the groundwater was contaminated by intruding seawater. In the 2000s, three-dimensional inversion of the IP approach was developed, and high-precision geophysical exploration was required to secure domestic and overseas mineral resources, so SIP experiments on rock samples and approaches for field exploration were developed. The SIP approach was proven useful for the exploration of metal deposits containing sulfide minerals by applying it to explore the mineralization zone of gold-silver deposits in the Haenam region. The IP method is considered to be effective in exploring critical minerals (lithium, cobalt, and nickel) in high-tech industries. It also is expected to be useful for environmental and geotechnical investigations.

주제어

표/그림 (4)

$Fig. 1. Phase change according to particle sizes of sulfide minerals with a volume fraction of 20% (Park et al., 2013).$ 그림 Fig. 1. Phase change according to particle sizes of sulfide minerals with a volume fraction of 20% (Park et al., 2013).
그림 Fig. 2. Relationship between chargeability and time constant calculated from Cole-Cole model using SIP measurement data of several ores and surrounding rock samples collected at Skarn deposits in Korea.
그림 Fig. 3. SIP survey lines and photographs of the field site.
그림 Fig. 4. Comparison of the 3D geological model’s phase difference and mineralized zones (modified from Park et al., 2014).

참고문헌 (31)

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상세보기
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원문보기 상세보기
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상세보기
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상세보기
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상세보기
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