Origin of Mesozoic gold mineralization in South Korea

Seon Gyu Choi, Sung Tack Kwon, Jin Han Ree, Chil Sup So, Sang Joon Pak

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

The Mesozoic gold - silver deposits in South Korea are closely associated with the Mesozoic granitoids. The Jurassic gold - silver deposits can be distinguished from the Cretaceous ones in terms of occurrence, alteration style, gold fineness, associated mineral assemblage, fluid inclusion and stable isotopic compositions. The Jurassic deposits were formed in mesozonal environments related to deep-seated granitoids, whereas the Cretaceous ones were formed in epizonal environments related to shallow-level granitoids. The Jurassic auriferous deposits (about 165-145 Ma) show fluid characteristics typical of an orogenic-type gold deposit, and were probably generated in a compressional regime caused by an orthogonal convergence of the Izanagi oceanic plate into the Asiatic margin. However, strike-slip faults and caldera-related fractures, together with subvolcanic to volcanic activity, may have played an important role in the formation of Cretaceous gold - silver lode deposits (about 110-45 Ma) under a continental arc setting.

Original languageEnglish
Pages (from-to)102-114
Number of pages13
JournalIsland Arc
Volume14
Issue number2
DOIs
Publication statusPublished - 2005 Jun

All Science Journal Classification (ASJC) codes

  • Geology

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