• Title/Summary/Keyword: Fe-Cu(-Au)광화작용

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Re-evaluation of Genetic Environments of Zinc-lead Deposits to Predict Hidden Skarn Orebody (스카른 잠두 광체 예측을 위한 아연-연 광상 성인의 재검토)

  • Choi, Seon-Gyu;Choi, Bu-Kap;Ahn, Yong-Hwan;Kim, Tae-Hyeong
    • Economic and Environmental Geology
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    • v.42 no.4
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    • pp.301-314
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    • 2009
  • The Taebaeksan mineralized province, which is the most important one in South Korea, is rich in zinc-lead-tungsten-iron-copper-molybdenum-silver-gold mineral resources and has a diversity of deposit styles. These deposits principally coexist in time and space with porphyry-related epigenetic deposit such as skarn, hydrothermal replacement, mesothermal vein, and Carlin-like deposits. The magmatic-hydrothermal systems in the Taebaek fold belt is genetically characterized by the Bulguksa subvolcanic rocks(ca. $110{\sim}50\;Ma$) related to northwestward subduction of the paleo-Pacific Plate. The most important zinc-lead deposits in the area are the Uljin, Yeonhwa II and Shinyemi skarn, the Janggun hydrothermal replacement, and the Yeonhwa I intermediate-mixed (skarn/hydrothermal replacement) ones. In the present study, we present a compilation of metal production and mineral assemblage of the zinc-lead deposits. The metal difference of deposit styles in the area indicates a cooling path from intermediate-sulfidation to low-sulfidation state in the polymetallic hydrothermal system, reflecting spatial proximity to a magmatic source.