Invisible gold from the Hishikari epithermal gold deposit, Japan: Implication for gold distribution and deposition

Nobutaka Shimada, Tomoki Nakamura, Yasuo Morinaga, Yoshihito Shikama

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The presence of invisible gold was confirmed in arsenian pyrite from the Hishikari epithermal gold deposit, Kagoshima, Japan, by means of EPMA and SIMS analyses. The relative concentration of invisible gold may be positively correlated with As contents (0.01 to 10.37 wt%) of fine-grained arsenian pyrite which commonly occurs in the auriferous quartz veins. Although arsenian pyrite occurs widely in any mineralization stage with electrum and other sulfide, sulfosalts, selenide or telluride minerals, arsenian pyrites having higher As contents accompanied by invisible gold occur dominantly in the middle stage of fine-adularia-quartz and in the late stage of coarse-quartz rather than in the early stage of columnar-adularia.

Original languageEnglish
Pages (from-to)91-100
Number of pages10
JournalResource Geology
Volume55
Issue number2
DOIs
Publication statusPublished - 2005 Jun 1
Externally publishedYes

Keywords

  • Arsenian pyrite
  • As
  • Au
  • Correlation
  • EPMA
  • Invisible gold
  • SIMS

ASJC Scopus subject areas

  • Geology
  • Geochemistry and Petrology

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