Economic and Environmental Geology (자원환경지질)

The Korean Society of Economic and Environmental Geology (대한자원환경지질학회)
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Occurrence Characteristics of Bophi Vum Chromite Mineralized Zone in the Northwestern Myanmar

미얀마 북서부 보피붐 크롬철석 광화대의 산출특성

  • Heo, Chul-Ho (Mineral Resources Department, Mineral Resources Development Research Center, Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources(KIGAM)) ;
  • Chi, Se-Jung (Institute of Basic Science, Chungbuk National University) ;
  • Kang, Il-Mo (Mineral Resources Department, Mineral Resources Development Research Center, Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources(KIGAM)) ;
  • Jin, Kwang-Min (Mineral Resources Department, Mineral Resources Development Research Center, Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources(KIGAM))
  • 허철호 (한국지질자원연구원 광물자원연구본부 광물자원개발연구센터 광물자원연구실) ;
  • 지세정 (충북대학교 기초과학연구소) ;
  • 강일모 (한국지질자원연구원 광물자원연구본부 광물자원개발연구센터 광물자원연구실) ;
  • 진광민 (한국지질자원연구원 광물자원연구본부 광물자원개발연구센터 광물자원연구실)
  • Received : 2014.01.23
  • Accepted : 2014.04.30
  • Published : 2014.08.28
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Abstract

In order to grasp the geological characteristics, the occurrence mode of ore body and development potential of Bophi Vum chromite mineralized zone in northwestern Myanmar, Korea Institute of Geoscience and Mineral Resources(KIGAM) and Department of Geological Survey and Mineral Exploration(DGSE) carried out joint exploration targeting on the $6km^2$ areas within the mineralized zone. Chromitites occur as a major Cr-ore body in the Bophi Vum area, and are enveloped by dunitic peridotites. As a result of geological survey, the geological map of Bophi Vum was drawn in the scale of 1:1,000, and we discovered that the chromitite ores are mainly distributed at the elevation range between 200 and 400 m. The soil geochemistry was conducted by collecting total 114 soil samples in the interval of 50 m after pitting ground surface under 0.7-1 m. Geochemical anomaly maps of Cr, Ni, Fe, and Mn were prepared by ICP-AES.

미얀마 북서부 보피붐 크롬-광화대에 대한 지질특성, 광체산상 및 개발 잠재성을 파악하기 위하여 광화대내 약 $6km^2$ 탐사지역을 설정하여 한국지질자원연구원과 미얀마 지질조사광물탐사국이 현지 공동조사를 수행하였다. 조사지역 내 크롬광체는 주로 더나이트에 수반된 크롬철석암으로 해발 200-400 m 구간에 걸쳐 지표상에 분포하고 있는 것을 확인하였으며 지표지질 및 광상조사를 수행하여 1:1,000 축척의 정밀 지질도 및 광상분포도를 작성하였다. 지질 및 광상 조사와 병행하여 토양 지화학 탐사를 수행하였으며, 50 m 간격으로 총 114개 지점에 대한 피팅탐사를 실시하여 토양과 노두시료를 채취 분석 하였고, ICP-AES를 이용하여 Cr, Ni, Fe, Mn에 대한 지화학이상대도를 작성하였다.

Keywords

References

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  1. Geological Structure and Mineralization in the Vophi Bum Cr Mineralized Zone, NW Myanmar vol.24, pp.4, 2015, https://doi.org/10.7854/JPSK.2015.24.4.307
  2. Mineralization in the Pegmatite of Mogok Metamorphic Belt, Myanmar vol.31, pp.3, 2018, https://doi.org/10.9727/jmsk.2018.31.3.183