Geological and isotopic substantiation of the age of mineralization of the Tokur gold mining center of the Amur province

Authors

  • Vitaly A. Stepanov Research Geotechnological Center, FEB RAS, Petropavlovsk-Kamchatsky, Russia
  • Anton V. Melnikov Institute of Geology and Natural Management, FEB RAS, Blagoveshchensk, Russia

Keywords:

gold ore center, deposit, isotope age, gold-quartz and gold-sulfide formations

Abstract

Data on the geological and isotopic age of the formation of the gold mineralization of the Tokur gold ore center of the Amur gold-bearing province are analyzed. It is shown that the mining of ore gold was carried out mainly from deposits of gold-sulfide (Malomyr) and gold quartzformation with albitite (deposit (Albyn and Elga) and quartz-veined (Tokur) ores. The isotope age determined by the40Ar/39Ar method makes it possible to distinguish three stages of the formation of mineralization: early – gold-quartz with albitite ores (139–130 million years), middle – gold-sulfide (134–120,7 million years) and late – gold-quartz with quartz-vein ores (122,4–113,6 million years).

Author Biographies

Vitaly A. Stepanov, Research Geotechnological Center, FEB RAS, Petropavlovsk-Kamchatsky, Russia

Doctor of Sciences in Geology and Mineralogy, Professor, Chief Researcher  

http://orcid.org/0000-0002-7028-3662

Anton V. Melnikov, Institute of Geology and Natural Management, FEB RAS, Blagoveshchensk, Russia

Candidate of Sciences in Geology and Mineralogy, Leading Researcher

http://orcid.org/0000-0001-9102-653X

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Published

2024-11-21

How to Cite

Stepanov В. А., & Melnikov А. В. (2024). Geological and isotopic substantiation of the age of mineralization of the Tokur gold mining center of the Amur province. Vestnik of the Far East Branch of the Russian Academy of Sciences, (2), 42–53. Retrieved from http://vestnikdvo.ru/index.php/vestnikdvo/article/view/1174

Issue

No. 2 (2024)

Section

Earth and environment sciences