| Fluid Inclusions in the Gold—Bearing Quartz Veins at Um Rus Area,Eastern Desert,Egypt |
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| 作者姓名： | MOHAMEDELTOKHI ABDALLAELMUSLEM |
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| 作者单位： | [1]GeologyDepartment,FacultyofScience,Damietta,MansouraUniversity,Egypt [2]GeologyDepartment,FacultyofScience,AlAin,UnitedArabEmiratesUniversity,UnitedArabEmirates |
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| 摘 要： |
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| 关 键 词： | 液体包裹体 石英 氯化钠液体 埃及 金矿化带 |
| 收稿时间： | 25 April 2010 |
Fluid inclusions in the gold-bearing quartz veins at Um Rus area, Eastern Desert, Egypt |
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| MOHAMEDELTOKHI ABDALLAELMUSLEM.Fluid inclusions in the gold-bearing quartz veins at Um Rus area, Eastern Desert, Egypt[J].Chinese Journal of Geochemistry,2002,21(2):131-139. |
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| Authors: | Mohamed El Tokhi Abdalla El Muslem |
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| Institution: | (1) Geology Department, Faculty of Science, Mansoura University, Damietta, Egypt;(2) Geology Department Faculty of Science, United Arab Emirates University, Al Ain, United Arab Emirates |
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| Abstract: | Fluid inclusions in the gold-bearing quartz veins at the Um Rus area are of three types: H2O, H2O−CO2 and CO2 inclusions. H2O inclusions are the most abundant, they include two phases which exhibit low and high homogenization temperatures ranging
from 150 to 200°C and 175 to 250°C, respectively. The salinity of aqueous inclusions, based on ice melting, varies between
6.1 and 8 equiv. wt% NaCl. On the other hand, H2O−CO2 fluid inclusions include three phases. Their total homogenization temperatures range from 270 to 325°C, and their salinity,
based on clathrate melting, ranges between 0.8 and 3.8 equiv. wt% NaCl. CO2 fluid inclusions homogenize to a liquid phase and exhibit a low density range from 0.52 to 0.66 g/cm3. The partial mixing of H2O−CO2 and salt H2O−NaCl fluid inclusions is the main source of fluids from which the other types of inclusions were derived. The gold-bearing
quartz veins are believed to be of medium temperature hydrothermal convective origin. |
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| Keywords: | fluid inclusion gold-bearing quartz vein Eastern Desert of Egypt |
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