Non-kimberlitic sources of diamonds and prospects of their discovery in the ukrainian shield
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- Category: Geology
- Last Updated on 07 January 2019
- Published on 26 December 2018
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Authors:
M.V.Ruzina, Dr. Sc. (Geol.), Prof., orcid.org/0000-0002-6612-9750, National Mining University, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
O.A.Tereshkova, Cand. Sc. (Geol.), Assoc. Prof., orcid.org/0000-0001-5731-7349, National Mining University, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
N.V.Bilan, Cand. Sc. (Geol.), Assoc. Prof., orcid.org/0000-0002-4086-7827, National Mining University, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
I.V.Zhyltsova, Cand. Sc. (Geol.), Assoc. Prof., orcid.org/0000-0002-9383-4797, National Mining University, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract:
Purpose. To substantiate the prospects of potentially diamondiferous formations of non-kimberlite genesis and improve the forecasting criteria for diamond deposits within the Ukrainian Shield.
Methodology. The research involved a complex study of the structural features, compositional-indicating evidence and distribution regularities of potentially diamond-bearing formations of non-kimberlite genesis. Petrographic characteristics and composition of ore mineralization were studied in thin and polished sections using a polarization microscope Altami POLAR P-312. To substantiate the material composition of diamond-prospecting rocks, the results of X-ray, thermal and microprobe analyzes were interpreted.
Findings. Fluid-explosive units that have been discovered within the Inhul megablock of the Ukrainian Shield are diamondiferous formations. Fluid-explosive units from the Bilozerska greenstone structure within the Middle Prydniprovie megablock of the Ukrainian shield is largely similar to the above-mentioned unites as well as the diamond-bearing phyllites from Diamantina (Brazil) and diamond-bearing visherites of the Urals. This by analogy with a number of world metallogenic provinces allows predicting the possibility of discovery of non-traditional diamond-prospective formations of non-kimberlite genesis within the Middle Prydniprovie megablock of the Ukrainian Shield as it is a typical Archean craton.
Originality. Established factual background is indicative of credible occurrences of potentially diamond-bearing formations of non-kimberlite genesis within the Middle Prydniprovie megablock. During diagnostics of fluid-explosive units of the studied region, a number of structural features observed exclusively in fluidolites are identified. Fluid-explosive formations also contain abnormal concentrations of noble metals.
Practical value. The results of the research allow us to forecast the possible discovery of non-traditional diamond-prospective formations of non-kimberlite genesis within the Middle Prydniprovie megablock of the Ukrainian Shield.
References.
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