<abstract xmlns="http://www.w3.org/1999/xhtml">Baddeleyite as inclusions in zircon crystals is described for the first time from the ore zone of the Azov zirconium-rare-earth deposit in the Volodarsky (Pivdennokalchytsky) syenite Massif in the Ukrainian Shield. The main admixture in the zircon containing baddeleyite is hafnium (0.68 wt%). The baddeleyite occurs in a substance that fills cracks and that probably corresponds to glass. The chemical compositions of four baddeleyite segregations, and of the hosting glass, are presented. The baddeleyite formed as a result of interaction between zircon and silicate melt with a low SiO2 content. The silicate melt formed under the influence of highthermobaric CO2-fluid flows on the rock.</abstract>

Baddeleyite as inclusions in zircon crystals is described for the first time from the ore zone of the Azov zirconium-rare-earth deposit in the Volodarsky (Pivdennokalchytsky) syenite Massif in the Ukrainian Shield. The main admixture in the zircon containing baddeleyite is hafnium (0.68 wt%). The baddeleyite occurs in a substance that fills cracks and that probably corresponds to glass. The chemical compositions of four baddeleyite segregations, and of the hosting glass, are presented. The baddeleyite formed as a result of interaction between zircon and silicate melt with a low SiO2 content. The silicate melt formed under the influence of highthermobaric CO2-fluid flows on the rock.

Baddeleyite segregations in zircon of the Azov zirconium-rare-earth deposit (Ukrainian Shield)

M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of National Academy of Sciences of Ukraine, 34 Acad. Palladina prosp., 03680 Kyiv

Mineralogia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Baddeleyite as inclusions in zircon crystals is described for the first time from the ore zone of the Azov zirconium-rare-earth deposit in the Volodarsky...

Baddeleyite segregations in zircon of the Azov zirconium-rare-earth deposit (Ukrainian Shield)

Publié en ligne: 31 juil. 2014

Pages: 125 - 131

DOI: https://doi.org/10.2478/mipo-2013-0009

Mots clés
baddeleyite, zircon, high-thermobaric CO2-fluid flows, Azov zirconium-rare-earth deposit

© by Dmytro K. Voznyak

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Baddeleyite segregations in zircon of the Azov zirconium-rare-earth deposit (Ukrainian Shield)

Publié en ligne: 31 juil. 2014

Pages: 125 - 131

DOI: https://doi.org/10.2478/mipo-2013-0009

Mots clésbaddeleyite, zircon, high-thermobaric CO2-fluid flows, Azov zirconium-rare-earth deposit

© by Dmytro K. Voznyak

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
baddeleyite, zircon, high-thermobaric CO2-fluid flows, Azov zirconium-rare-earth deposit