Phenomenon of the Evolution of Hydrothermal Fluids of Mineral Formation at the Archean-Proterozoic Boundary

V. V. Goncharuk; Yu. A. Fomin; Yu. N. Demikhov; V. G. Verkhovtsev

doi:10.3103/S1063455X19030019

Phenomenon of the Evolution of Hydrothermal Fluids of Mineral Formation at the Archean-Proterozoic Boundary

Authors: Goncharuk V.V.¹, Fomin Y.A.², Demikhov Y.N.², Verkhovtsev V.G.²
Affiliations:
1. Dumanskii Institute of Coloid and Water Chemistry
2. State Establishment Institute of Geochemistry of Environment
Issue: Vol 41, No 3 (2019)
Pages: 137-142
Section: Features of Water Origin on the Planet Earth
URL: https://journals.rcsi.science/1063-455X/article/view/184054
DOI: https://doi.org/10.3103/S1063455X19030019
ID: 184054

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Abstract

Based on isotope-geochemical study of mineral-forming fluid of the gold and uranium deposits of two megablocks of the Ukrainian shield, a significant difference between the hydrothermal systems of the Archean and Proterozoic (3042—1750 million years) has been established. The study included the experimental determination of the hydrogen, oxygen and carbon isotopic composition, and the ratio of water and carbon dioxide of fluids of gas—liquid inclusions in quartz, pyrite and feldspars.

Keywords

Archean, gas—liquid inclusions, hydrosphere, isotopic composition, deposits of uranium and gold, Proterozoi, fluids of mineral formation, the Ukrainian shield