Origin and evolution of W-Mo-producing fluids in a granitic hydrothermal system

geochemical studies of quartz vein deposits around the Susan granite, Hwanggangri district, Republic of Korea

So Chil-Sup So, Seong Taek Yun

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

The Hwanggangri mineralized district is located approximately 130 km southeast of Seoul within the Paleozoic Ogcheon belt of South Korea. W-Mo-bearing quartz veins fill fractures in the granite and its host rocks which comprise early Paleozoic limestone-rich sedimentary rocks. The ore mineral paragenesis can be divided into three stages, based on the textural relationships of different mineral assemblages: I (W-Mo stage), II (base metal sulfides stages), and III (barren carbonate-fluorite stage). There is a systematic decrease in the measured and calculated isotopic compositions of hydrothermal waters with increasing paragenetic time and decreasing temperature. The trend reflects the progressive increase of meteoric water involvement in the mineralizing system. Increasing involvement of progressively large volumes of meteoric water resulted in successive deposition of base metal sulfides, fluorite, and carbonates. -from Authors

Original languageEnglish
Pages (from-to)246-267
Number of pages22
JournalEconomic Geology
Volume89
Issue number2
Publication statusPublished - 1994 Dec 1

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Quartz deposits
South Korea
hydrothermal systems
fluorite
granite
quartz vein
base metal
hydrothermal system
meteoric water
veins
Fluorspar
quartz
Paleozoic
Carbonates
deposits
minerals
sulfide
Sulfides
carbonate
Minerals

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

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title = "Origin and evolution of W-Mo-producing fluids in a granitic hydrothermal system: geochemical studies of quartz vein deposits around the Susan granite, Hwanggangri district, Republic of Korea",
abstract = "The Hwanggangri mineralized district is located approximately 130 km southeast of Seoul within the Paleozoic Ogcheon belt of South Korea. W-Mo-bearing quartz veins fill fractures in the granite and its host rocks which comprise early Paleozoic limestone-rich sedimentary rocks. The ore mineral paragenesis can be divided into three stages, based on the textural relationships of different mineral assemblages: I (W-Mo stage), II (base metal sulfides stages), and III (barren carbonate-fluorite stage). There is a systematic decrease in the measured and calculated isotopic compositions of hydrothermal waters with increasing paragenetic time and decreasing temperature. The trend reflects the progressive increase of meteoric water involvement in the mineralizing system. Increasing involvement of progressively large volumes of meteoric water resulted in successive deposition of base metal sulfides, fluorite, and carbonates. -from Authors",
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AB - The Hwanggangri mineralized district is located approximately 130 km southeast of Seoul within the Paleozoic Ogcheon belt of South Korea. W-Mo-bearing quartz veins fill fractures in the granite and its host rocks which comprise early Paleozoic limestone-rich sedimentary rocks. The ore mineral paragenesis can be divided into three stages, based on the textural relationships of different mineral assemblages: I (W-Mo stage), II (base metal sulfides stages), and III (barren carbonate-fluorite stage). There is a systematic decrease in the measured and calculated isotopic compositions of hydrothermal waters with increasing paragenetic time and decreasing temperature. The trend reflects the progressive increase of meteoric water involvement in the mineralizing system. Increasing involvement of progressively large volumes of meteoric water resulted in successive deposition of base metal sulfides, fluorite, and carbonates. -from Authors

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