Arid
DOI10.1016/j.jafrearsci.2017.03.025
The genesis of fluorite veins in Gabal El Atawi granite, Central Eastern Desert, Egypt
Fawzy, Khairiya M.
通讯作者Fawzy, Khairiya M.
来源期刊JOURNAL OF AFRICAN EARTH SCIENCES
ISSN1464-343X
EISSN1879-1956
出版年2018
卷号146页码:150-157
英文摘要

Quartz-fluorite-calcite veins were deposited by hydrothermal solutions along structures in Gabal El Atawi granitic pluton. The present investigation aims to study the geochemical characteristics and petrogenesis of Gabal El Atawi fluorite veins. Micro-inclusions data in fluorite veins were obtained and integrated with the available geological, mineralogical and geochemical data to yield information on the genesis of the mineralization as well as the evolution of the mineralizing fluids. Fluid inclusions studies reveal that the fluorite precipitated from saline (up to 22 equiv. wt % NaCl) H2O-NaCl-CaCl2 solutions at homogenization temperatures (T-h up to 220 degrees C). The close spatial relationship between fluorite veins and the granitic rocks, the structural control of the veins, the presence of fluorite and tourmaline as accessory minerals in the granite, the high fluorine concentration in the granite, the REE normalized pattern and the formation conditions of fluorite imply a magmatic origin of hydrothermal fluids which formed the fluorite veins. The source of the fluorite veins is the same magma chamber that supplied the granitic magma i.e. co-magmatic. The ore fluids were released as a result of late-stage differentiation, forming fluorite veins along faults and shears. (C) 2017 Elsevier Ltd. All rights reserved.


英文关键词Genesis of fluorite veins Fluid inclusions REEs Gabal El Atawi granite Central Eastern Desert Egypt
类型Article
语种英语
国家Egypt
收录类别SCI-E
WOS记录号WOS:000447568000011
WOS关键词FLUID INCLUSIONS ; MINERALIZATION ; GEOCHEMISTRY ; MINERALS
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/210405
作者单位Aswan Univ, Geol Dept, Fac Sci, Aswan, Egypt
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Fawzy, Khairiya M.. The genesis of fluorite veins in Gabal El Atawi granite, Central Eastern Desert, Egypt[J],2018,146:150-157.
APA Fawzy, Khairiya M..(2018).The genesis of fluorite veins in Gabal El Atawi granite, Central Eastern Desert, Egypt.JOURNAL OF AFRICAN EARTH SCIENCES,146,150-157.
MLA Fawzy, Khairiya M.."The genesis of fluorite veins in Gabal El Atawi granite, Central Eastern Desert, Egypt".JOURNAL OF AFRICAN EARTH SCIENCES 146(2018):150-157.
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