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NTIS 바로가기자원환경지질 = Economic and environmental geology, v.48 no.1, 2015년, pp.1 - 13
염태선 (공주대학교 지질환경과학과) , 신동복 (공주대학교 지질환경과학과)
The geology of the Seungryung Zn deposit, located in the Muzu basin, consists of Precambrian leucocratic granitic gneiss, Cretaceous clastic rocks, pyroclastic rocks, and intrusive rocks. The deposit shows a weakly skarnized hydrothermal replacement ore developed along limestone bed in the gneiss. T...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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광화작용은 어떻게 구분되는가? | 무주분지에 발달하는 승륭 아연광상 주변 지질은 선캠브리아기의 우백질 화강편마암, 백악기 쇄설암, 화산쇄설암과 관입암체로 구성되며, 광상은 편마암내 편리를 따라 협재하는 석회암을 교대한 열수교대광상으로 스카른화작용을 미약하게 받았다. 광화작용은 석류석, 휘석과 같은 스카른 광물이 형성되는 초기와 자철석, 섬아연석, 황동석, 자류철석, Pb-Ag-Bi-S계 등의 금속 광물이 정출되는 중기, 그리고 녹니석과 백철석 등의 변질 광물 및 저온 광물이 형성되는 후기로 구분된다. 섬아연석의 경우 염주(bead chains)와 분말(dusting)조직 등의 황동석 병변조직이 특징적으로 나타나며, Pb-Ag-Bi-S계 광물로는 헤이로브스카이트-에스키모아이트 고용체, 릴리아나이트-구스터바이트 고용체, 그리고 비킨자이트 등이 산출된다. | |
무주분지에 발달하는 승륭 아연광상 주변 지질은 무엇으로 구성되는가? | 무주분지에 발달하는 승륭 아연광상 주변 지질은 선캠브리아기의 우백질 화강편마암, 백악기 쇄설암, 화산쇄설암과 관입암체로 구성되며, 광상은 편마암내 편리를 따라 협재하는 석회암을 교대한 열수교대광상으로 스카른화작용을 미약하게 받았다. 광화작용은 석류석, 휘석과 같은 스카른 광물이 형성되는 초기와 자철석, 섬아연석, 황동석, 자류철석, Pb-Ag-Bi-S계 등의 금속 광물이 정출되는 중기, 그리고 녹니석과 백철석 등의 변질 광물 및 저온 광물이 형성되는 후기로 구분된다. | |
기존 광화대 및 광상에 대한 탐사 및 재평가가 활발해진 이유는 무엇인가? | 광물자원의 안정적 수급이 국가성장동력 확보 측면에서 그 중요성이 커지는 가운데 정부에서도 유연탄, 우라늄, 철, 동, 아연, 니켈 등의 6대 전략광종을 지정하고 국내외 광상들에 대한 탐사, 개발 및 투자에 많은 노력을 기울이고 있다. 이를 위해 새로운 미개척지 (green field)에 대한 신규 탐사 외에도 기존 광화대 및 광상(brown field)에 대한 탐사 및 재평가가 활발히 진행되어 오고 있다. |
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