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Systematic mineralogy and chemistry of gold-silver vein deposits in the Taebaeksan district, Korea: Distal relatives of a porphyry system

Published online by Cambridge University Press:  05 July 2018

S. J. Pak ,
S.-G. Choi  and
S.-H. Choi
S.-G. Choi*
Affiliation:
Department of Earth and Environmental Sciences, Korea University, Seoul 136-701, Korea
*
*E-mail: [email protected]
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Abstract

Gold-silver vein deposits in the Taebaeksan district, Korea, coexist in time and space with a variety of other deposit types such as skarns, hydrothermal carbonate replacement bodies and Carlin-like deposits and reflect proximity to a magmatic source. The seven gold-silver deposits within the district show common features such as multiple complex veins, an abundance (up to 30% in ore) of base-metal sulphides, a wide range of Ag/Au ratios and the common occurrence of carbonate. Quartz-vein textures indicate open-space-filling at shallow crustal levels. On the basis of Ag/Au ratios of ore, mode of occurrence, and associated mineral assemblages, the seven deposits studied can be classified as follows; Au-dominant type (Group I), Au-Ag type (Group II), Ag-dominant type (Group IIIA) and base-metal and Ag-dominant type (Group IIIB). Group I is characterized by paragenetically early Pb-Zn basemetal sulphides with electrum and late, rare Ag-sulphides and Ag-sulphosalts, whereas Group III contains more Ag-sulphides and/or Ag-sulphosalts. Group II is gold-rich, but transitional to Group III. The Au contents and FeS contents of electrum and sphalerite, respectively, from all of the deposits decreased as mineralization proceeded. Temperature and log fS2 conditions of gold-silver mineralization tend to decrease from Group I and II to Group III deposits (i.e. 340–270°C, –9.3 to –11.8 bar, 320–240°C, –9.5 to –10.3 bar, 250–160°C, –12.5 to –16.9 bar, respectively) as well as from the main to late stages of mineralization in each deposit. The systematic mineralogy and variation of physicochemical conditions in Groups I, II and III are thought to be due to their relative positions with respect to a magma source that is genetically related to a low-to-intermediate-sulphidation porphyry system. Au-rich deposits are proximal to a magmatic source, whereas Ag-rich deposits are more distal.

Keywords

electrumsphaleritedistal relativeslow to intermediate-sulphidationporphyry systemTaebaeksanKorea
Type
Research Article
Information
Mineralogical Magazine , Volume 68 , Issue 3 , June 2004 , pp. 467 - 487
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2004

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References

Barton, P.B. Jr. and Toulmin, P. (1964) The electrumtarnish method for the determination of the fugacity of sulfur in laboratory sulphide systems. Geochimica et Cosmochimica Acta, 28, 619–640.CrossRefGoogle Scholar
Barton, P.B. Jr. and Skinner, B.J. (1979) Sulphide mineral stabilities. Pp. 278–403 in: Geochemistry of Hydrothermal Ore Deposits, 2nd edition (Barnes, H.L., editor). Wiley-Interscience, New York.Google Scholar
Benning, L.G. and Seward, T.M. (1996) Hydrosulphide complexing of gold (I) in hydrothermal solutions from 150 to 500°C and 500 to 1500 bars. Geochimica et Cosmochimica Acta, 60, 1849–1871.CrossRefGoogle Scholar
Chang, H.W., Lee, M.S., Park, H.I., Kim, J.H. and Chi, J.M. (1990) Study of the Taebaeksan mineralized Area. Kosef 87-0609 report, pp. 173–264.Google Scholar
Chang, T.Y. and Chi, J.M. (1989) Fluid inclusion study of Chungil gold mine. The Journal of Korean Institute of Mining Geology, 22, 193–205.Google Scholar
Cheong, C.H. (1969) Stratigraphy and paleontology of the Samchang coalfield, Gangweondo, Korea. The Journal of the Geological Society of Korea, 26, 471–487.Google Scholar
Cho, D.L. and Kwon, S.T. (1994) Hornblende geobarometry of the Mesozoic granites in South Korea and the evolution of crustal thickness. The Journal of the Geological Society of Korea, 30, 41–61.Google Scholar
Choi, S.G. and Choi, S.H. (1995) Contrasting style of gold and silver mineralization in the central and southeastern Korea. Economic and Environmental Geology, 6, 587–597.Google Scholar
Choi, S.G. and Wee, S.M. (1992) The genetic characteristics of gold and/or silver vein deposits related to chemical composition of electrum in Central Korea. The Journal of the Geological Society of Korea, 28, 196–217.Google Scholar
Choi, S.G., Choi, S.H. and Lee, H.K. (1997) Mineralogy and geochemistry of the Ogkye gold deposits, Gangwond oprovince. Economic and Environmental Geology, 30, 15–23.Google Scholar
Choi, S.G., Pak, S.J., Choi, S.H. and Shin, H.J. (2001) Mesozoic granites and associated gold-silver mineralization in Korea. Economic and Environmental Geology, 34, 25–38.Google Scholar
Cole, D.R. and Drummond, S.E. (1986) The effect of transport and boiling on Ag/Au ratios in hydrothermal solutions: A preliminary assessment and possible implications for the formation of epithermal precious-metal ore deposits. Journal of Geochemical Exploration, 25, 45–79.CrossRefGoogle Scholar
Corbett, G. (2002) Epithermal gold for explorationists. Australian Institute of Geoscientists Journal – Applied Geoscientific Practice and Research in Australia, 1–26.Google Scholar
Corbett, G. and Leach, T. (1998) Porphyry-related low sulfidation gold systems. Southwest Pacific rim goldcopper systems. “Structure, Alteration and Mineralisation”. Economic Geology, Special Publication, 6, 137–200.Google Scholar
Drummond, S.E. and Ohmoto, H. (1985) Chemical evolution and mineral deposition in boiling hydrothermal systems. Economic Geology, 80, 126–147.CrossRefGoogle Scholar
Einaudi, M.T., Hedenquist, J.W. and Inan, E.E. (2003) Sulfidation stage of fluids in active and extinct hydrothermal systems: transitions form porphyry to epithermal environments. “Volcanic, Geothermal, and Ore-Forming fluids: Rulers and Witnesses of Processes within the Earth”. Economic Geology, Special Publication, 10, 285–313.Google Scholar
Gammons, C.H. and Williams-Jones, A.E. (1995) Hydrothermal geochemistry of electrum: Thermodynamic constraints. Economic Geology, 90, 420–432.CrossRefGoogle Scholar
Gammons, C.H., Williams-Jones, A.E. and Yu, Y. (1994) New data on the stability of gold (I) chloride complexes at 300°C. Mineralogical Magazine, 58A, 309–310.CrossRefGoogle Scholar
Giggenbach, W.F. (1980) Geothermal gas equilibria. Geochimica et Cosmochimica Acta, 44, 2021–2032.CrossRefGoogle Scholar
Hayashi, K.I. and Ohmoto, H. (1991) Solubility of gold in NaCl- and H2S-bearing aqueous solutions at 250–350°C. Geochimica et Cosmochimica Acta, 55, 2111–2126.CrossRefGoogle Scholar
Hur, S.D. and Park, H.I. (2000) Ore mineralogy and fluid inclusion study on the Shinjeongseon Pb-Zn ore deposit, Jeongseon, Korea. The Journal of the Geological Society of Korea, 36, 93–112.Google Scholar
Hwang, D.W. (2001) Gold deposits and exploration prospects in Korea. Korea Institute of Geoscience and Mineral Resources Bulletin, 5, 51–68.Google Scholar
Hwang, J. (1994) Mineral and fluid inclusion of the Jungbong silver deposits. Journal of the Korean Earth Science Society, 15, 219–229.Google Scholar
Hwang, J. and Park, H.I. (1996) Stable isotope of the Nakcheon, Eunchi and Jungbong gold-silver deposits in the northern Taebaegsan mining district. Economic and Environmental Geology, 29, 159–170.Google Scholar
Jin, M.S., Kim, S.Y., Seo, H.J. and Kim, S.J. (1989) K-Ar fission track dating for granites and volcanic rocks in the southeastern part of Korean Peninsula. Korea Institute of Energy and Resources, Research Report KR-88-6D, pp. 51–84.Google Scholar
Jwa, Y.J. (1998) Temporal, spatial and geochemical discriminations of granites in South Korea. Resource Geology, 48, 273–284.CrossRefGoogle Scholar
Kim, S.H., Yun, S.T., Kweon, S.H. and Lee, D.H. (1994) Epithermal gold-silver mineralization of the Dongbo mine. Journal of the Korean Institute Mineral and Energy Resources Engineers, 31, 355–363.Google Scholar
Kim, J.H., Kee, W.S. and Seo, S.K. (1996) Geological structures of the Yeoryang–Imgye area, northern part of Mt. Taebaeg Region, Korea. The Journal of the Geological Society of Korea, 32, 1–15.Google Scholar
Kim, S.H., Choi, S.H. and Choi, Y.C. (1996) Epithermal silver-gold mineralization of the Sinrim mine. Journal of the Korean Institute Mineral and Energy Resources Engineers, 33, 274–281.Google Scholar
Kim, S.H., Choi, Y.C. and Youm, S.J. (1999) Mineralogy and geochemistry of the Sanjeon Au-Ag deposit, Wonju area, Korea. Economic and Environmental Geology, 32, 445–454.Google Scholar
Kretschmar, V. and Scott, S.D. (1976) Phase relations involving arsenopyrite in the system Fe-As-S and their application. The Canadian Mineralogist, 14, 364–386.Google Scholar
Lee, C.H. and Park, H.I. (1994) Gold mineralization and depositional environment of the Samjo deposits, Korea. The Journal of the Geological Society of Korea, 30, 395–409.Google Scholar
Lee, C.H. and Park, H.I. (1996) Epithermal gold-silver mineralization and depositional environment carbonate- hosted replacement type Baegjeon Deposits, Korea. Economic and Environmental Geology, 29, 105–117.Google Scholar
Lee, M.S. (1981) Geology and metallic mineralization associated with Mesozoic granitic magmatism in South Korea. Mining Geology, 31, 235–244.Google Scholar
Morrison, G.W., Rose, W.J. and Jaireth, S. (1991) Geological and geochemical controls on the silver content (fineness) of gold in gold-silver deposits. Ore Geology Reviews, 6, 333–364.CrossRefGoogle Scholar
Park, H.I. and Hwang, J. (1992) Chemical compositions of tetrahedrite-series minerals from Eunchi and Jungbong silver deposits. The Journal of the Geological Society of Korea, 28, 615–626.Google Scholar
Park, H.I. and Lee, C.H. (1990) The Au-Ag mineralization of North ore deposits, Dunjeon gold mine. The Journal of the Geological Society of Korea, 26, 358–370.Google Scholar
Park, H.I. and Lee, C.H. (1992) Mineral chemistry and ‘invisible gold’ of oscillatory zoned pyrite from Baegjeon gold deposits. The Journal of the Geological Society of Korea, 28, 627–636.Google Scholar
Park, H.I. and Park, Y.R. (1990) Gold and silver mineralization in the Dongweon mine. The Journal of Korean Institute of Mining Geology, 23, 183–199.Google Scholar
Park, H.I., Chang, H.W. and Jin, M.S. (1988) K-Ar ages of mineral deposits in the Taebaeg Mountain district. The Journal of Korean Institute of Mining Geology, 21, 57–67.Google Scholar
Park, H.I., Hwang, J. and Huh, S.D. (1992) Gold-silver mineralization in the Imgye district. The Journal of Korean Institute of Mining Geology, 25, 379–395.Google Scholar
Poulsen, K.H. (1995) Lode gold. Pp. 323–328 in: Geology of Canadian Mineral Deposit Types (Eckstrand, O.R., Sinclair, W.D. and Thorpe, R.I., editors). Geology of North America, volume P-1, Canada.CrossRefGoogle Scholar
Reed, M.H. (1992) Calculation of simultaneous chemical equilibria in aqueous-mineral-gas systems and its application to modeling hydrothermal process. Pp. 109–124 in: Techniques in Hydrothermal Ore Deposit Geology (Richards, J.P. and Larson, P.B., editors). Reviews in Economic Geology, 10. Society of Economic Geologists, Littleton, Colorado, USA.Google Scholar
Richards, J.P. and Kerrich, R. (1993) The Porgera gold mine, Papua New Guinea: Magmatic hydrothermal to epithermal evolution of an alkalic-type precious metal deposit. Economic Geology, 88, 1017–1052.CrossRefGoogle Scholar
Roedder, E. (1984) Interpretation and utilization of inclusion measurement: Temperature, pressure and density at trapping. Pp. 251–289 in: Fluid Inclusions (Roedder, E., editor). Reviews in Mineralogy, 12. Mineralogical Society of America, Washington D.C.CrossRefGoogle Scholar
Sagong, H., Kwon, S.T. and Ree, J.H. (2003) Origin of the 160–110 Ma hiatus in Mesozoic magmatism of South Korea. In Abstract for the 5th Hutton Symposium on the ‘Origin of Granites and Related Rocks’, Japan, p. 125.Google Scholar
Seward, T.M. (1989) The hydrothermal chemistry of gold and its implications for ore formation: boiling and conductive cooling as examples. Economic Geology Monograph, 6, pp. 398–404.Google Scholar
Seward, T.M. (1991) The hydrothermal geochemistry of gold. Pp. 37–62 in: Gold Metallogeny and Exploration (Foster, R.P., editor). Blackie, Glasgow, UK.CrossRefGoogle Scholar
Sharp, Z.D., Essene, E.L. and Kelly, W.C. (1985) A reexamination of the arsenopyrite geothermometer: pressure considerations and application to natural assemblages. The Canadian Mineralogist, 23, 517–534.Google Scholar
Shelton, K.L., So, C.S. and Chang, J.S. (1988) Gold-rich mesothermal vein deposits of the Republic of Korea: Geochemical studies of the Jungwon gold area. Economic Geology, 83, 1221–1237.CrossRefGoogle Scholar
Shelton, K.L., So, C.S. and Haeussler, G.T. (1990) Geochemical studies of the Tongyoung gold-silver deposits, Republic of Korea: Evidence of meteoric water dominance in a Te-bearing epithermal system. Economic Geology, 85, 1114–1132.CrossRefGoogle Scholar
Shikazono, N. (1985) A comparison of temperatures estimated from electrum-sphalerite-pyrite-argentite assemblage and filling temperatures of fluid inclusions from epithermal Au-Ag vein deposits in Japan. Economic Geology, 80, 1415–1424.CrossRefGoogle Scholar
Shikazono, N. and Shimizu, M. (1987) The Ag/Au ratio of native gold and electrum and geochemical environment of gold vein deposits in Japan. Mineralium Deposita, 22, 309–314.CrossRefGoogle Scholar
Sillitoe, R.H. (1989) Gold deposits in western Pacific island arcs: The magmatic connection. Pp. 274–291 in: The Geology of Gold Deposits: The Perspective in 1988 (Keays, R.R., Ramsay, W.R.H. and Groves, D.I., editors). Economic Geology Monograph, 6.Google Scholar
Sillitoe, R.H. and Thompson, J.F.H. (1998) Intrusionrelated vein gold deposits: Type, tectono-magmatic settings and difficulties of distinction from orogenic gold deposits. Resource Geology, 48, 237–250.CrossRefGoogle Scholar
So, C.S., Chi, S.J. and Shelton, K.L. (1987) The Jeonui gold-silver mine, Republic of Korea: A geochemical study. Mining Geology, 37, 313–322.Google Scholar
So, C.S., Yun, S.T., Choi, S.H. and Shelton, K.L. (1989) Geochemical studies of hydrothermal gold-silver deposits, Republic of Korea: Youngdong mining district. Mining Geology, 39, 9–19.Google Scholar
So, C.S., Yun, S.T., Kim, S.H., Youm, S.J., Heo, C.H. and Choi, S.G. (1993) Mesothermal gold-silver mineralization at the Bodeok mine, Boseong area: A fluid inclusion and stable isotope study. The Journal of Korean Institute of Mining Geology, 26, 433–444.Google Scholar
van Leeuwen, T.M., Leach, T.M., Hawke, A.A. and Hawke, M.M. (1990) The Kelian disseminated gold deposit, East Kalimantan, Indonesia. “Epithermal Gold Mineralization of the Circum Pacific”. Journal of Geochemical Exploration, 35, 1–61.CrossRefGoogle Scholar
Yun, S. and Einaudi, M.T. (1982) Zinc-lead skarns of the Yeonhwa-Ulchin district, South Korea. Economic Geology, 77, 1013–1032.CrossRefGoogle Scholar