대한자원환경지질학회:학술대회논문집 (Proceedings of the KSEEG Conference)

대한자원환경지질학회 (The Korean Society of Economic and Environmental Geology)
권호 표지

SUBMILLIMETER SCALE VARIATION OF THE OXYGEN ISOTOPE COMPOSITION OF GOLD-BEARING QUARTZ VEIN AT THE HISHIKARI DEPOSIT, JAPAN

  • Hayashi, Ken-ichiro (Department of Mineralogy, Petrology, and Economic Geology, Graduate School of Science, Tohoku University)
  • 발행 : 2003.04.01
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초록

Low-sulfidation style ore deposits, the major source of Au, Ag, and Hg, are formed from neutral-pH, reduced hydrothermal solutions close to equilibrium with their host rocks. The waters are low-salinity (〈1 wt % NaCl equiv.) but relatively gas rich (1-2 wt % $CO_2$), and are largely meteoric water. However, the contribution of magmatic components to the epithermal system, its temporal importance, and its relation to the source of ore metals are largely controversial. (omitted)

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