Processes of Hydrothermal Vein Lead-Zinc Ore Formation: Geochemical Data and Thermodynamic Models

Autor: M. V. Borisov, D. A. Bychkov, Yu. V. Shvarov, T. N. Lubkova

Publikováno v: Moscow University Geology Bulletin. 77:382-392

For the Dzhimidonsky vein polymetallic deposit (North Ossetia, Russia), formed in the Middle Jurassic time, it was established by the nature of the distribution of rare-earth elements in the veins and rocks that the sources of REE and ore components

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e3fb3d9f4adc37634ae9fc30ebe626b
https://doi.org/10.3103/s0145875222040032

Experimental determination of calcite solubility and the stability of aqueous Ca– and Na–carbonate and –bicarbonate complexes at 100–160 °C and 1–50 bar pCO2 using in situ pH measurements

Autor: Oleg S. Pokrovsky, Pascale Bénézeth, Jacques Schott, A. Yu. Bychkov, Yu. V. Shvarov, Alain Castillo

Publikováno v: Geochimica et Cosmochimica Acta
Geochimica et Cosmochimica Acta, Elsevier, 2020, 290, pp.352-365. ⟨10.1016/j.gca.2020.09.004⟩
Geochimica et Cosmochimica Acta, 2020, 290, pp.352-365. ⟨10.1016/j.gca.2020.09.004⟩

International audience; The solubility of calcite was measured at 100, 120, 140 and 160°C at 1-50 bar pCO2 in10-3-0.1 mol·kg-1 NaCl solutions using a new experimental setup involving in situ pH measurements with high-temperature solid-contact H-sel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ef200a36b8c134093c98f44d1831dc5
https://hal.archives-ouvertes.fr/hal-03003973

Experimental study of fluorite solubility in acidic solutions as a method for boron fluoride complexes studying

Autor: Yu. V. Shvarov, M. E. Tarnopolskaia, Yu. A. Popova, A. Yu. Bychkov

Publikováno v: Geochemistry International. 55:355-359

Fluorite solubility in HCl and HF solutions with varied concentrations of boric acid was studied at 81, 155, and 208°C and saturated vapor pressure. Our experimental results demonstrate that fluorite solubility increases with increasing B(OH)3 conce

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e813b550cd18bf09d2e335d6e1cec71a
https://doi.org/10.1134/s0016702917020069

Experimental study of Pd hydrolysis in aqueous solutions at 25–70°C

Autor: N. D. Shikina, P. G. Kolodina, A. V. Zotov, L. A. Koroleva, Yu. K. Shazzo, B. R. Tagirov, Yu. V. Shvarov, V. A. Volchenkova

Publikováno v: Geochemistry International. 50:853-859

The hydrolysis of the Pd2+ ion in HClO4 solutions was examined at 25–70°C, and the thermodynamic constants of equilibrium K (1) 0 and K (2) 0 were determined for the reactions Pd2+ + H2O = PdOH+ + H+ and Pd2+ + 2H2O = Pd(OH) 2 0 + 2H+, respectivel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9983e5f30b86b297f0e269e0eb6045a5
https://doi.org/10.1134/s0016702912080034

Effect of wall rocks on the efficiency of hydrothermal ore-forming processes

Autor: M. V. Borisov, Yu. V. Shvarov

Publikováno v: Geochemistry International. 48:940-945

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0cd290913073e92dd2a5f154279e6c9d
https://doi.org/10.1134/s0016702910090077