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Occurrence and Genetic Environments of Quartz Veins from the Jukwangri area, Hwawon-myeon, Jeollanamdo, Republic of Korea  

Yoo, Bong-Chul (Department of geology and environmental Sciences, Chungnam National University)
Lee, Hyun-Koo (Department of geology and environmental Sciences, Chungnam National University)
Choi, Dong-Ho (Korea Resources Corporation)
Publication Information
Economic and Environmental Geology / v.39, no.6, 2006 , pp. 653-662 More about this Journal
Abstract
Quartz veins from the Jukwangri area of Hwawon-myeon are epithermal quartz veins that are filling the NW or NE-trending faults within Precambrian metasedimentary rocks. Based on their prolongation and ore grades, No. 1 quartz vein can be traced for about 200 m and varies 0.1 to 3 m in thickness. Mineralization of No. 1 quartz vein can be divided into hypogene and supergene stages. Hypogene stage is associated with hydrothermal alteration minerals(phyllic and argillic zones) such as illite, sericite and sulfides such as pyrite, arsenopyrite, sphalerite. chalcopyrite, galena, argentian tetrahedrite. Supergene stage is composed of Fe-Mn oxide, Zn-Fe oxide and Pb oxide. Fluid inclusion data indicate that homogenization temperature and salinity of hypogene stage range from 187 to $306^{\circ}C$ and ken 0.0 to 6.2 wt.% eq. NaCl, respectively. They suggest that ore forming fluids were progressively cooled and diluted from mixing with meteoric water. Oxygen($-4.1{\sim}4.1%o$) and hydrogen($-107{\sim}-88%o$) isotope com-positions indicated that hydrothermal fluids were derived from meteoric and evolved by progressive mixing with meteoric water during mineralization.
Keywords
Jukwangri area; quartz vein; mineralization; fluid inclusion; stable isotope;
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Times Cited By KSCI : 1  (Citation Analysis)
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