Geochemical barriers in supergene nickel deposit on the example Buruktal deposit (South Urals)
- 1 — Ph.D. associate professor Saint Petersburg State Mining University
- 2 — Ph.D., Dr.Sci. professor Saint Petersburg State Mining University
- 3 — Ph.D. assistant lecturer Saint Petersburg State Mining University
- 4 — Ph.D. scientific secretary Saint Petersburg State Mining University
- 5 — post-graduate student Saint Petersburg State Mining University
- 6 — student Saint Petersburg State Mining University
Abstract
The main geochemical barrier in supergene Buruktal nickel deposit is oxygen oxidized barrier in upper ferrous-oxide zone of the deposit. It makes sharp decrease of chemical element migration. Nevertheless, ore mineral concentrations present oft in complex geochemical barriers: absorbed-oxidized, carbonate-reducing and others. Every type of the geochemical barriers is able to concentrate specific association of migrated elements. That reflected on the different values of coefficients of enrichment in different types of Buruktal metasomatites. Oxidized barrier is more effective for elements with different valence (Fe, Mn), and absorbed clay, ferrous-oxide und manganese-oxide barriers are more effective for the main part of microelements.
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