Econ. Environ. Geol. 2009; 42(6): 513-525

Published online December 31, 2009

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Ore Minerals, Fluid Inclusion and Stable Isotope Studies of the Buyeong Gold-silver Deposit, Republic of Korea

Gill Jae Lee1, Bong Chul Yoo1*, Jong Kil Lee2, Se Jung Chi1 and Hyun Koo Lee3

1Korea Institute of Geoscience and Mineral Resources, Daejeon, 305-350, Korea
2Geotechnical department, Dohwa Consulting Engineers Co., LTD., Seoul, 135-080, Korea
3Department of geology and environmental sciences, Chungnam National University, Daejeon, 305-764, Korea

Correspondence to :

Bong Chul Yoo

chbong@kigam.re.kr

Received: November 5, 2009; Accepted: December 20, 2009

Abstract

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, epidote and sulfides such as pyrite, pyrrhotite, marcasite, sphalerite, chalcopyrite, galena and galenobismutite. Supergene stage is composed of malachite, goethite, chalcocite, and sphalerite oxide. Fluid inclusion data indicate that homogenization temperatures and salinities range from 112 to 340oC and from 0.2 to 7.9 wt.% NaCl, respectively. Sulfur(3.2~3.9‰) isotope composition indicates that ore sulfur was derived from mainly magmatic source as well as partly host rocks. The calculated oxygen(4.3~6.0‰) and hydrogen(?60~?64‰) isotope compositions indicate that hydrothermal fluids may be meteoric origin with some degree of mixing of another meteoric water for paragenetic time.

Keywords Buyeong gold-silver deposit, mineralization, fluid inclusion, isotope

Article

Econ. Environ. Geol. 2009; 42(6): 513-525

Published online December 31, 2009

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Ore Minerals, Fluid Inclusion and Stable Isotope Studies of the Buyeong Gold-silver Deposit, Republic of Korea

Gill Jae Lee1, Bong Chul Yoo1*, Jong Kil Lee2, Se Jung Chi1 and Hyun Koo Lee3

1Korea Institute of Geoscience and Mineral Resources, Daejeon, 305-350, Korea
2Geotechnical department, Dohwa Consulting Engineers Co., LTD., Seoul, 135-080, Korea
3Department of geology and environmental sciences, Chungnam National University, Daejeon, 305-764, Korea

Correspondence to:

Bong Chul Yoo

chbong@kigam.re.kr

Received: November 5, 2009; Accepted: December 20, 2009

Abstract

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, epidote and sulfides such as pyrite, pyrrhotite, marcasite, sphalerite, chalcopyrite, galena and galenobismutite. Supergene stage is composed of malachite, goethite, chalcocite, and sphalerite oxide. Fluid inclusion data indicate that homogenization temperatures and salinities range from 112 to 340oC and from 0.2 to 7.9 wt.% NaCl, respectively. Sulfur(3.2~3.9‰) isotope composition indicates that ore sulfur was derived from mainly magmatic source as well as partly host rocks. The calculated oxygen(4.3~6.0‰) and hydrogen(?60~?64‰) isotope compositions indicate that hydrothermal fluids may be meteoric origin with some degree of mixing of another meteoric water for paragenetic time.

Keywords Buyeong gold-silver deposit, mineralization, fluid inclusion, isotope

    KSEEG
    Jun 30, 2024 Vol.57 No.3, pp. 281~352

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