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

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Ferrosoferric Oxide
iron ores
Iron ores
iron ore
Gold
magnetite
boreal forest
Ores
Deposits
gold
deposits
Rocks
minerals
rocks
rock
ludwigite
Metamorphic rocks
metamorphic rocks
serpentinization
Boron

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

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Background gold levels in rocks and iron ores at the Taiga deposit, central Aldan. / Korobeynikov, A. F.; Kulakovskiy, A. L.; Pertsev, N. N.

In: Geochemistry International, Vol. 25, No. 11, 1988, p. 45-51.

Research output: Contribution to journalArticle

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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",
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N2 - 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

AB - 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

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