Econ. Environ. Geol. 2006; 39(5): 583-595

Published online October 31, 2006

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Ore Minerals and Genetic Environments of Quartz Veins from the Hwawon Area, Haenam, Korea

Bong Chul Yoo1, Jin Yong Oh2, Heung Suk Kang3 and Hyun Koo Lee1*

1Department of geology and environmental sciences, Chungnam National University
2Nondestructive Research Lab. Cultural Property, Kongju National University
3Korea Resources Corporation

Correspondence to :

Hyun Koo Lee

phklee@cnu.ac.kr

Received: August 16, 2006; Accepted: October 19, 2006

Abstract

Quartz veins from the Hwawon area are an epithermal quartz vein that is filling the fault zone within Precambrian metasedimentary rocks and Jurassic granite. Mineralization can be divided into hypogene and supergene stages. Hypogene stage is associated with hydrothermal alteration minerals(propylitic and argillic zones) such as epidote, chlorite, illite, sericite and sulfides such as pyrite, sphalerite, chalcopyrite, galena, bornite, cubanite, argentian tetrahedrite, Pb-Ag-S system and Pb-Te-S system. Supergene stage is composed of Fe-Mn oxide, Zn-Fe oxide and Pb oxide. Fluid inclusion data indicate that homogenization temperatures and salinity of hypogene stage range from 291.2oC to 397.3oC and from 0.0 to 9.3 wt.% eq. NaCl, respectively. It suggests that ore forming fluids were cooled and diluted with the mixing of meteoric water. Oxygen(-0.7~3.5‰(white quartz: -0.7~3.5‰, transparent quartz: 2.4‰)) and hydrogen(-70~-55‰(white quartz: -70~-55‰, transparent quartz: -62‰)) isotopic composition indicates that hydrothermal fluids were derived from magmatic and evolved by mixing with meteoric water during mineralization.

Keywords Hwawon area, quartz vein, mineralization, fluid inclusion, isotope

Article

Econ. Environ. Geol. 2006; 39(5): 583-595

Published online October 31, 2006

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Ore Minerals and Genetic Environments of Quartz Veins from the Hwawon Area, Haenam, Korea

Bong Chul Yoo1, Jin Yong Oh2, Heung Suk Kang3 and Hyun Koo Lee1*

1Department of geology and environmental sciences, Chungnam National University
2Nondestructive Research Lab. Cultural Property, Kongju National University
3Korea Resources Corporation

Correspondence to:

Hyun Koo Lee

phklee@cnu.ac.kr

Received: August 16, 2006; Accepted: October 19, 2006

Abstract

Quartz veins from the Hwawon area are an epithermal quartz vein that is filling the fault zone within Precambrian metasedimentary rocks and Jurassic granite. Mineralization can be divided into hypogene and supergene stages. Hypogene stage is associated with hydrothermal alteration minerals(propylitic and argillic zones) such as epidote, chlorite, illite, sericite and sulfides such as pyrite, sphalerite, chalcopyrite, galena, bornite, cubanite, argentian tetrahedrite, Pb-Ag-S system and Pb-Te-S system. Supergene stage is composed of Fe-Mn oxide, Zn-Fe oxide and Pb oxide. Fluid inclusion data indicate that homogenization temperatures and salinity of hypogene stage range from 291.2oC to 397.3oC and from 0.0 to 9.3 wt.% eq. NaCl, respectively. It suggests that ore forming fluids were cooled and diluted with the mixing of meteoric water. Oxygen(-0.7~3.5‰(white quartz: -0.7~3.5‰, transparent quartz: 2.4‰)) and hydrogen(-70~-55‰(white quartz: -70~-55‰, transparent quartz: -62‰)) isotopic composition indicates that hydrothermal fluids were derived from magmatic and evolved by mixing with meteoric water during mineralization.

Keywords Hwawon area, quartz vein, mineralization, fluid inclusion, isotope

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

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