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NTIS 바로가기자원환경지질 = Economic and environmental geology, v.42 no.6, 2009년, pp.513 - 525
이길재 (한국지질자원연구원 광물자원연구본부) , 유봉철 (한국지질자원연구원 광물자원연구본부) , 이종길 ((주)도화종합기술공사 지반공학부) , 지세정 (한국지질자원연구원 광물자원연구본부) , 이현구 (충남대학교 지질환경과학과)
The Buyeong gold-silver deposit consists of quartz veins that fill along the NS fault zone within Cretaceous Goseong formation. Mineralization can be divided into hypogene and supergene stages. Hypogene stage is associated with hydrothermal alteration minerals such as sericite, pyrite, chlorite, epi...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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부영광상의 광화시기에 산출되는 광석광물은 무엇이 있는가? | 부영광상의 광화시기에 산출되는 광석광물은 황철석, 자류철석, 섬아연석, 황동석, 방연석, 백철석, 갈레노비스무타이트 등이다. | |
부영광상에 대한 주변지질 및 광상, 광석광물에 대한 공생관계와 화학조성, 유체포유물, 안정동위원소 실험연구를 진행한 결과는? | 1. 부영 금-은광상은 백악기 고성층 내에 발달된 N5~10°W-N8°E 방향의 단층대를 따라 충진한 함 금, 은 열수성 석영맥상광상이다. 이 광상의 석영맥은 단일 시기로 구성되며 산출광물은 견운모, 녹니석, 녹염석, 황철석, 황동석, 섬아연석, 방연석, 자류철석, 백철석, 갈레노비스무타이트 등이다. 2. 부영 금-은광상의 공생광물군으로 추정한 생성온도와 황분압(fs2)은 각각 >337℃, >10−9.3 atm를 갖는다. 3. 유체포유물에서 측정한 균일화온도와 염농도는 112~340℃, 0.2~7.9 wt.% NaCl로써 균일화온도가 낮아짐에 따라 염농도도 함께 낮아지는 현상과 균일화온도의 변화 없이 염농도가 감소하는 현상도 관찰된다. 이는 열수용액이 단층대를 따라 상승함에 따라 압력의 감소에 의해 비등 및 천수의 혼합에 의한 냉각 및 희석작용이 있었음을 지시하며 이런 현상에 의해 황화광물들이 침전되었다. 4. 부영 금-은광상에서 산출되는 황화광물의 δ34SH2S 값은 2.0~2.7‰, 석영의 δ18OH2O값은 −2.3~−0.9‰ 및 석영의 δD값은 −64~−60‰로써 광화유체는 천수기원의 유체가 주종을 이룬 것으로 보이며 광화작용이 진행됨에 따라 기원이 다른 천수의 혼입이 작용한 것으로 보인다. | |
부영광상은 어떤 광상인가? | 부영광상은 백악기 고성층 내에 발달된 NS 방향의 열극을 따라 충진한 함 금, 은, 동 열수성 맥상 석영맥 광상이다. 부영광상은 행정구역상 경상남도 고성군 삼산면에 위치하며 고성광화대에 해당된다(Fig. |
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