Nontraditional gold-platinum deposits in East Siberia

A. F. Korobeinikov, G. L. Mitrofanov, V. R. Nemerov, N. A. Kolpakova

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The authors have revealed a commercially important platinum mineralization (0.1-7.3 ppm Pt) in the gold-bearing metasomatites and ores of the Sukhoi Log, Zun-Kholba, and Irokindinskoe deposits in East Siberia. At the Sukhoi Log deposit native platinum, Pt3Cu; Pt3Fe; Pt, Fe; Pt3(Cu,Fe), (Pd,Ag)n(Te,Bi)m, PtS in accretion with pyrite, galenite, and sphalerite have been found. These gold ores should be considered complex gold-platinum and referred to gold-platinum-sulfide-telluride-listwanite (Sukhoi Log) and gold-platinum-quartz-sulfide-beresite (Zun-Kholba, Irokindinskoe) formations of hydrothermal-metasomatic genesis. The deposits are located in Late Proterozoic - Paleozoic rifting structures on the areas of active paleodiapirism development. Such nontraditional objects are characterized by step accumulation of Au, Pt, Pd, Rh, and Os in ore-localizing fault-fold structures, in zones of fracture, mylonization, and hydrothermal metasomatism among carbonaceous, terrigenous, and terrigenous-volcanogenic rock masses of the upper rifting parts of terrigenous synclines and ophiolitic belts.

Original languageEnglish
Pages (from-to)432-444
Number of pages13
JournalGeologiya i Geofizika
Issue number4
Publication statusPublished - 1998

Keywords

  • Conditions of Pt, Pd, Rh, and Os concentration in black-shale masses
  • East Siberia
  • Nontraditional complex deposits
  • Platinum-metal forms in ores
  • Zones of hydrothermal metasomatism and diapirism

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

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