The origin and evolution of mineralizing fluids in the Cretaceous Gyeongsang Basin, Southeastern Korea

S. G. Choi; S. J. Pak; C. S. Kim; I. C. Ryu; S. M. Wee

doi:10.1016/j.gexplo.2005.12.009

The origin and evolution of mineralizing fluids in the Cretaceous Gyeongsang Basin, Southeastern Korea

S. G. Choi, S. J. Pak, C. S. Kim, I. C. Ryu, S. M. Wee

Department of Earth and Environmental Sciences

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Ferroalloy, base-metal and precious-metal deposits in or around the Gyeongsang Basin, which is located in the Cretaceous volcano-sedimentary terrain at the southeastern Korea, displays a genetic relationship with subvolcanic activities of Late Cretaceous to Tertiary age. Diverse mineralization, which occurs as vein, breccia-pipe, porphyry-style and skarn deposits, took place from 108 to 45 Ma that overlapped with polyphase episodes of igneous activity. Based on the mineralogy, host rock, fluid inclusion and stable isotope data of the deposits, the systematic variation of physicochemical conditions is thought to be due to their relative positions with respect to a magma source that is genetically related to a low to intermediate-sulfidation porphyry system. There appears to be a systematic decrease towards δ¹⁸O_H2O values from copper (-gold) and ferroalloy deposits through polymetallic to precious-metal ones. However, Cu (-Au) or Fe-Mo-W deposits are proximal to a magmatic source, whereas polymetallic or precious-metal deposits are more distal to transitional.

Original language	English
Pages (from-to)	61-64
Number of pages	4
Journal	Journal of Geochemical Exploration
Volume	89
Issue number	1-3 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.gexplo.2005.12.009
Publication status	Published - 2006 Apr

Keywords

Cretaceous
Fluid evolution
Korea
Mineralization
Stable isotope

ASJC Scopus subject areas

Geochemistry and Petrology
Economic Geology

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10.1016/j.gexplo.2005.12.009

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title = "The origin and evolution of mineralizing fluids in the Cretaceous Gyeongsang Basin, Southeastern Korea",

abstract = "Ferroalloy, base-metal and precious-metal deposits in or around the Gyeongsang Basin, which is located in the Cretaceous volcano-sedimentary terrain at the southeastern Korea, displays a genetic relationship with subvolcanic activities of Late Cretaceous to Tertiary age. Diverse mineralization, which occurs as vein, breccia-pipe, porphyry-style and skarn deposits, took place from 108 to 45 Ma that overlapped with polyphase episodes of igneous activity. Based on the mineralogy, host rock, fluid inclusion and stable isotope data of the deposits, the systematic variation of physicochemical conditions is thought to be due to their relative positions with respect to a magma source that is genetically related to a low to intermediate-sulfidation porphyry system. There appears to be a systematic decrease towards δ18OH2O values from copper (-gold) and ferroalloy deposits through polymetallic to precious-metal ones. However, Cu (-Au) or Fe-Mo-W deposits are proximal to a magmatic source, whereas polymetallic or precious-metal deposits are more distal to transitional.",

keywords = "Cretaceous, Fluid evolution, Korea, Mineralization, Stable isotope",

author = "Choi, {S. G.} and Pak, {S. J.} and Kim, {C. S.} and Ryu, {I. C.} and Wee, {S. M.}",

note = "Funding Information: This work was supported by grant no. R01-2002-000-00407-0 (2002) from the Basic Research Program of the Korea Science and Engineering Foundation (KOSEF).",

year = "2006",

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doi = "10.1016/j.gexplo.2005.12.009",

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AU - Pak, S. J.

AU - Kim, C. S.

AU - Ryu, I. C.

AU - Wee, S. M.

N1 - Funding Information: This work was supported by grant no. R01-2002-000-00407-0 (2002) from the Basic Research Program of the Korea Science and Engineering Foundation (KOSEF).

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N2 - Ferroalloy, base-metal and precious-metal deposits in or around the Gyeongsang Basin, which is located in the Cretaceous volcano-sedimentary terrain at the southeastern Korea, displays a genetic relationship with subvolcanic activities of Late Cretaceous to Tertiary age. Diverse mineralization, which occurs as vein, breccia-pipe, porphyry-style and skarn deposits, took place from 108 to 45 Ma that overlapped with polyphase episodes of igneous activity. Based on the mineralogy, host rock, fluid inclusion and stable isotope data of the deposits, the systematic variation of physicochemical conditions is thought to be due to their relative positions with respect to a magma source that is genetically related to a low to intermediate-sulfidation porphyry system. There appears to be a systematic decrease towards δ18OH2O values from copper (-gold) and ferroalloy deposits through polymetallic to precious-metal ones. However, Cu (-Au) or Fe-Mo-W deposits are proximal to a magmatic source, whereas polymetallic or precious-metal deposits are more distal to transitional.

AB - Ferroalloy, base-metal and precious-metal deposits in or around the Gyeongsang Basin, which is located in the Cretaceous volcano-sedimentary terrain at the southeastern Korea, displays a genetic relationship with subvolcanic activities of Late Cretaceous to Tertiary age. Diverse mineralization, which occurs as vein, breccia-pipe, porphyry-style and skarn deposits, took place from 108 to 45 Ma that overlapped with polyphase episodes of igneous activity. Based on the mineralogy, host rock, fluid inclusion and stable isotope data of the deposits, the systematic variation of physicochemical conditions is thought to be due to their relative positions with respect to a magma source that is genetically related to a low to intermediate-sulfidation porphyry system. There appears to be a systematic decrease towards δ18OH2O values from copper (-gold) and ferroalloy deposits through polymetallic to precious-metal ones. However, Cu (-Au) or Fe-Mo-W deposits are proximal to a magmatic source, whereas polymetallic or precious-metal deposits are more distal to transitional.

KW - Cretaceous

KW - Fluid evolution

KW - Korea

KW - Mineralization

KW - Stable isotope

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The origin and evolution of mineralizing fluids in the Cretaceous Gyeongsang Basin, Southeastern Korea

Abstract

Keywords

ASJC Scopus subject areas

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