• 제목/요약/키워드: mineral

검색결과 10,362건 처리시간 0.043초

Mineral Resources Potential Mapping using GIS-based Data Integration

  • Lee Hong-Jin;Chi Kwang-Hoon;Park Maeng-Eon
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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    • pp.662-663
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    • 2004
  • In general, mineral resources prospect is performed in several methods including geological survey, geological structure analysis, geochemical exploration, airborne geophysical exploration and remote sensing, but data collected through these methods are usually not integrated for analysis but used separately. Therefore we compared various data integration techniques and generated final mineral resources potentiality map.

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Nano Second Beam Bunching System of KIGAM

  • Kim, G.D.;Hong, W.;Choi, H.W.;Kim, J.K.;Lee, H.R.;Woo, H.J.;Lee, Y.O.;Chang, J.H.
    • 한국원자력학회:학술대회논문집
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    • 한국원자력학회 2005년도 추계학술발표회
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    • pp.737-738
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    • 2005
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SUBPIXEL UNMIXING TECHNIQUE FOR DETECTION OF USEFUL MINERAL RESOURCES USING HYPERSPECTRAL IMAGERY

  • Hyun, Chang-Uk;Park, Hyeong-Dong
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2008년도 International Symposium on Remote Sensing
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    • pp.66-67
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    • 2008
  • Most mineral resources are located in subsurface but mineral exploration starts with a step of investigation in wide-area to find evidence of buried ores. Conventional technique for exploration on wide-area as a preliminary survey is an observation using naked eyes by geologist or chemical analysis using lots of samples obtained from target area. Hyperspectral remote sensing can overcome those subjective and time consuming survey and can produce mineral resources distribution map. Precise resource map requires information of mineral distribution in a subpixellevel because mineral is distributed as rock components or narrow veins. But most hyperspectral data is composed of pixels of several meters or more than ten meters scale. We reviewed subpixel unmixing algorithms which have been used for geological field and tested detection ability with Hyperion imagery, geological map and seven spectral curves of mineral and rock specimens which were obtained from study areas.

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Effects of solution, sorbate, and sorbent chemistries on polycyclic aromatic hydrocarbon sorption to hydrated mineral surfaces

  • Yim, Soobin
    • 한국지하수토양환경학회:학술대회논문집
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    • 한국지하수토양환경학회 2003년도 추계학술발표회
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    • pp.132-135
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    • 2003
  • Solution chemistry, sorbate chemistry, and sorbent chemistry were widely investigated to find important factors that affect PAH sorption on mineral surfaces and to elucidate its microscopic mechanism. The solution chemistry, pH and ionic strength caused measurable change of HOC sorption reaction to minerals. The detectable change of Ka occurred at a pH region crossing the PZC (Point of Zero Charge) of each mineral. The PAH hydrophobicity, one of sorbate chemistry, was observed to have a strong correlation with PAM sorption to mineral. Mineral surface area was not found to be a predominant factor controlling PAH sorption. The mineral type might be more likely to play a crucial role in controlling the PAH sorption behavior. The CEC (Cation Exchange Capacity) of mineral, representing surface charge density, has meaningful correlation with regression slope of sorption coefficients (log $K_{d}$) versus aqueous activity coefficients (log Υ$_{w}$).).).

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GIS와 인공신경망을 이용한 금-은 광물 부존적지 선정 및 검증 (Gold-Silver Mineral Potential Mapping and Verification Using GIS and Artificial Neural Network)

  • 오현주
    • 한국지리정보학회지
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    • 제13권3호
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    • pp.1-13
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    • 2010
  • 본 연구에서는 지리정보시스템(GIS)과 인공신경망 기법을 이용하여 강원도 태백산광화대 지역의 금-은 광물부존 가능성도를 작성 및 검증하고자 한다. 금-은 광상과 관련된 요인으로는 지질, 단층, As, Cu, Mo, Ni, Pb, Zn 등의 지화학 자료를 선정하여 GIS 기반의 공간 데이터베이스로 구축하였다. 46개소의 금-은 광상은 훈련 및 검증 자료로 분류하여 광물부존 가능성 분석과 검증에 사용하였다. 인공신경망 분석에 있어서 광상 분포지역과 미 분포지역에 대한 훈련자료는 기존 광상의 위치와 우도비 방법으로 도출된 광물부존 가능지수의 하위 10%에 해당하는 지역으로 선정하였다. 금-은 광물부존 가능성도의 신뢰도를 검증하기 위해 광물부존 가능지수의 상위 5% 지역 내에서 암석시료를 채취한 후 Au, Ag, As, Cu, Pb, Zn 원소의 성분을 분석하였다. 그 결과 No. 4의 시료는 다른 시료들보다 각 원소별로 높은 함량을 보였다.