Metallogenic evolution of organogenic metamorphics in NW Bulgaria: genetic types of gold and gold-polymetallic mineralizations

Authors

  • N. N. Obretenov xxx
  • Nikola Vardev xxx

Abstract

The metallogenic evolution of the organogenic Lower Palaeozoic rocks in the West Balkanides is divided into six stages, each generating different types of gold deposits: (1) volcanogenic-sedimentary gold-copper pyrite deposits; (2) sedimentary-diagenetic gold-pyrite deposits in carbon-rich sediments; (3) postmetamorphic-hydrothermal quartz-gold-silver deposits; (4) skarn gold deposits; (5) postmagmatic-hydrothermal gold-polymetallic deposits; (6) gold placers. In some areas the superposition of different mobilization, generation and re-generation processes in time and space lead to the formation of more complex polygenic and polychronous gold-bearing deposits. The proposed evolutionary model may be used to prognosticate gold deposits of the above six genetic types.

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Published

2013-02-25

Issue

Vol. 38 No. 4 (1994)

Section

Articles

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