亚速锆-稀土矿床(乌克兰盾)锆石中的坏长辉石分离

Q4 Earth and Planetary Sciences

Mineralogia Pub Date : 2013-07-01 DOI:10.2478/mipo-2013-0009

D. Voznyak, D. Chernysh, V. Melnikov, S. S. Ostapenko

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引用次数: 4

摘要

摘要首次在乌克兰地盾Volodarsky (Pivdennokalchytsky)正长岩地块亚速锆-稀土矿床的矿带中描述了以锆石晶体包裹体形式存在的钡长辉石。含坏辉石锆石的主要掺合物为铪(0.68 wt%)。坏辉石出现在填充裂缝的物质中，这可能相当于玻璃。介绍了四种差辉石分离物的化学组成，以及承载玻璃的化学组成。不良辉长岩是锆石与硅酸盐熔体相互作用形成的，SiO2含量较低。硅酸盐熔体是在高热压co2流体对岩石的影响下形成的。

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

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.

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来源期刊

Mineralogia Earth and Planetary Sciences-Geology

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： - original papers in the scope of widely understood mineralogical sciences (mineralogy, petrology, geochemistry, environmental sciences, applied mineralogy etc.) - research articles, short communications, mini-reviews and review articles