Water-Containing Defects in Variously Deformed Milky-White Vein Quartz of the Larino Deposit (South Urals)

IF 1.2 4区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Russian Geology and Geophysics Pub Date : 2024-02-15 DOI:10.2113/rgg20234664

M. A. Korekina, S. N. Shanina, A.N. Savichev, E. A. Pankrushina, M.V. Shtenberg, P.S. Morozov, D.A. Artemiev

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Abstract

––The methods of Infrared (IR) and Raman spectroscopy, as well as gas chromatography, were used to assess the distribution, content and composition of water-containing defects in variously deformed milky-white vein quartz of the Larino deposit. Weakly deformed quartz and quartz with intensive polygonization and recrystallization, in which water is present in molecular form, in fractures, channels, intergranular space, as well as in the composition of fluid inclusions, are analyzed. The content of water-containing defects, according to IR spectroscopy and gas chromatography, decreases in a series from weakly deformed primary granular coarse-grained quartz to blocked and recrystallized. The obtained results indicate the release of water during recrystallization, along the newly formed grain boundaries by diffusion and further homogenization to achieve an equilibrium state. Gas content also depends on the degree of deformation changes in samples and decreases from large coarse-grained differences to intensely deformed quartz with a high content of recrystallized grains.

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拉里诺矿藏（南乌拉尔）不同变形的乳白色矿脉石英中的含水缺陷

--采用红外（IR）和拉曼光谱以及气相色谱法评估了拉里诺矿床各种变形的乳白色脉石英中含水缺陷的分布、含量和组成。分析了弱变形石英和强化多角化和重结晶石英，其中水以分子形式存在于裂缝、通道、晶间隙以及流体包裹体的成分中。根据红外光谱和气相色谱法，含水缺陷的含量从弱变形的原生粒状粗粒石英到堵塞和再结晶的一系列过程中递减。所得结果表明，水在再结晶过程中沿着新形成的晶界扩散释放，并进一步均化以达到平衡状态。气体含量也取决于样品的变形变化程度，从粗粒差异大的石英到再结晶晶粒含量高的强烈变形石英，气体含量都在减少。

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来源期刊

Russian Geology and Geophysics 地学-地球科学综合

CiteScore

2.00

自引率

18.20%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal publishes original reports of theoretical and methodological nature in the fields of geology, geophysics, and geochemistry, which contain data on composition and structure of the Earth''s crust and mantle, describes processes of formation and general regularities of commercial mineral occurrences, investigations on development and application of geological-geophysical methods for their revealing. As to works of regional nature, accelerated publication are available for original papers on a variety of problems of comparative geology taking into account specific character of Siberia, adjacent Asian countries and water areas. The journal will also publish reviews, critical articles, chronicle of the most important scientific events, and advertisements.