Formation Conditions of Quartz‒Lazulite Mineralization of Mount Chernaya, Subpolar Urals: Evidence from Study of Fluid Inclusions

被引：0
|
作者：
N. V. Sokerina
N. Yu. Nikulova
M. Yu. Sokerin
S. I. Isaenko
S. O. Zorina
机构：
[1] N.P. Yushkin Institute of Geology,
[2] Komi Scientific Center,undefined
[3] Ural Branch,undefined
[4] Russian Academy of Sciences,undefined
[5] Kazan (Volga Region) Federal University,undefined
来源：
Geochemistry International | 2022年 / 60卷
关键词：
lazulite; hematite; quartz; fluid inclusions; formation conditions;
D O I：
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中图分类号：
学科分类号：
摘要：
Fluid inclusions in quartz and lazulite (Mg,Fe2+)Al2(OH,PO4)2 were studied for the first time in the quartz‒lazulite‒hematite-tourmaline veins of Mt. Chernaya, the Nether-Polar Urals. It was found that they are very similar. Homogenization of the most inclusions occurs at 155‒220°C in lazulite and at 147‒235°C in quartz; and salinity varies between 12.5‒15.0 and 10.7‒15.7 wt % NaCl eq., respectively. The eutectic temperature of the water‒salt solution in both cases ranges within ‒31 … ‒40°C, which indicates the presence of magnesium, sodium, and iron salts in the mineral-forming fluid. The gas phase of fluid inclusions is represented by carbon dioxide and nitrogen in approximately equal proportions.
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页码：905 / 909
页数：4
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