Background gold levels in rocks and iron ores at the Taiga deposit, central Aldan

A. F. Korobeynikov, A. L. Kulakovskiy, N. N. Pertsev

Research output: Contribution to journalArticle

Abstract

Background gold levels are reported for magnetic and hematite ores localized in Aldan Early Precambrian high-grade metamorphic rocks. The basite-hyperbasite country rocks have levels two or three times higher than those in the komatities and Alpine-type hyperbasites in other regions (7 × 10-7%). The magnetite ores derived from the ultrabasites also have elevated levels of 8.9-10.6 × 10-7%. The highest concentrations, 39.2 x 10-7%, occur in the secondary magnetite and ludwigite-magnetite ores. Cataclasis and diaphthoresis in the enclosing basite-hyperbasites and serpentinization in the mineralized olivinites have resulted in the metal levels being reduced by factors of 2.5-4. High-temperature regeneration in the magnetite ores involved influx of boron, fluorine, sulfur and gold. -Journal summary

Original languageEnglish
Pages (from-to)45-51
Number of pages7
JournalGeochemistry International
Volume25
Issue number11
Publication statusPublished - 1988

    Fingerprint

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this