Abstract—
The Early–Middle Carboniferous Turgoyak granite pluton and Middle Riphean Urenga and Upper Riphean Uitash formations are described. In the Late Vendian, both formations underwent regional metamorphism of the cummingtonite–amphibolite facies at 550–595°C and 250–440 MPa and, locally, diaphthoresis at 520–530°C and 130–170 MPa. During origination of the Turgoyak pluton at 770–810°C and 210–250 MPa, the country rocks were subjected to contact metamorphism leading to the removal of gold from black shales of the amphibole–hornfel facies zone and its redeposition within the albite–epidote–hornfel facies zone.
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This work was supported by State Contract (project no. 0246-2019-0078).
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Translated by I. Melekestseva
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Snachev, A.V., Snachev, V.I. & Romanovskaya, M.A. The Geology, Formation Conditions, and Ore Potential of the Turgoyak Granite Pluton and Carbonaceous Rocks of its Western Frame (Southern Urals). Moscow Univ. Geol. Bull. 75, 119–127 (2020). https://doi.org/10.3103/S0145875220020118
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DOI: https://doi.org/10.3103/S0145875220020118