The Journal of the Petrological Society of Korea (암석학회지)

The Petrological Society of Korea (한국암석학회)
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Field Study of Zapla Iron Ore Deposit in Argentina

아르헨티나 자플라 철광상 현지 조사 연구

  • Pak, Sang-Joon (Deep-sea & Marine Georesources Research Department, Korea Ocean Research & Development Institute) ;
  • Lee, Han-Yeang (Oversea Mineral Resources Department, Korea Institute of Geoscience and Mineral Resources)
  • 박상준 (한국해양연구원 심해.해저자원연구부) ;
  • 이한영 (한국지질자원연구원 해외광물자원연구부)
  • Published : 2009.12.31
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Abstract

Zapla iron ore bodies in Jujuy state, northern Argentina are located within Paleozoic Silurian marine sedimentary rocks and can be categorized into ironstone deposit. Iron ores contain oolitic hematite as main iron mineral as well as siderite and chamosite. Hematite replaced biotite and/or muscovite along their cleavage or grain boundary, which indicates hematite is precipitated by chemical reaction. Silurian basins in northern Argentina has high potential resources for ironstone deposit but economic aspects of ore body can be controlled by magnitude of lateral vertical extensions and local grade variation of iron beds.

아르헨티나 북부 후후이주에 분포하는 자플라 함철광체는 고생대 실루리아기 해성층에 배태되는 철광석(ironstone)형 철광상이다. 자플라 함철광체는 적철석, 차모사이트, 능철석으로 구성되며 특징적으로 어란상 조직을 보인다. 주 함철광물인 적철석은 운모류의 벽개 및 외각부를 교대하며 산출되어 광체 형성시 화학적 작용에 의해 철광체가 형성되었다. 아르헨티나 북부에는 고생대 실루리아기 분지가 다수 분포하며 이들은 잠재적인 철광상으로 생각되며 이들의 경제성은 함철층의 연장성 및 품위, 개발 심도에 따라 좌우 될 것으로 생각된다.

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References

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