干旱区生态环境知识资源中心(Arid): Impact of Lithofacies and Structures on the Hydrogeochemistry of the Lower Miocene Aquifer at Moghra Oasis, North Western Desert, Egypt

Arid

DOI	10.1007/s11053-020-09679-3
	Impact of Lithofacies and Structures on the Hydrogeochemistry of the Lower Miocene Aquifer at Moghra Oasis, North Western Desert, Egypt
	Abdelazeem, Maha 1; Salem, Zenhom E.2; Fathy, Mohamed S.2; Saleh, Maha 3
通讯作者	Abdelazeem, Maha
来源期刊	NATURAL RESOURCES RESEARCH
ISSN	1520-7439
EISSN	1573-8981
出版年	2020
卷号	29 期号:6 页码:3789-3817
英文摘要	The Moghra Oasis is one of the major Egyptian desert-reclamation projects. Understanding the hydrochemistry of the Moghra aquifer is an onus to properly plan and manage the agricultural activities in the North Western desert of Egypt. The basic geologic structure of the area under study was deduced from a detailed land magnetic survey. The resulted magnetic field map was analyzed using different filtering techniques and tomographic inversion. Field observation, stratigraphic setting, sedimentological studies, microfacies analyses and lithologic log of the studied wells were integrated to detect the lithofacies characteristics of the Moghra aquifer. Strong vertical and lateral variations of channel-fill and flat-laminated lithofacies beside several types of diagenetic processes caused the heterogeneity of the Moghra aquifer. The direction of groundwater flow in the heterogeneous Moghra aquifer is controlled by a fault system deduced from the magnetic study. Twenty groundwater samples from around Moghra Lake were collected and were analyzed hydrochemically for major ions and trace elements. The microfacies analysis (primary components and diagenetic processes), spatial variance in pH and ions concentrations, statistical and hydrogeochemical classifications, ionic ratios and relationships and saturation indices were helpful to understand the groundwater hydrogeochemical processes. The main hydrochemical type was Na-Cl. Ion-exchange due to seawater intrusion, sulfate ion reduction, iron-oxides reduction and mineral dissolution were the detected water-rock interaction processes. Dolomite precipitation was also proven. Iron oxides, quartz and carbonate minerals precipitation in the upper saline groundwater were expected. More mineral dissolution for evaporate minerals, silicate minerals and carbonate minerals in the lower saline groundwater is expected to occur.
英文关键词	Western Desert Qattara Depression Moghra aquifer Hydrogeochemistry Magnetic interpretation Lithofacies architectures
类型	Article
语种	英语
国家	Egypt
收录类别	SCI-E
WOS记录号	WOS:000532884400002
WOS关键词	ION-EXCHANGING SOLUTES ; GROUNDWATER CHEMISTRY ; QATTARA DEPRESSION ; SULFATE REDUCTION ; MAJOR IONS ; WATER ; DISSOLUTION ; TRANSPORT ; ESTUARY ; AREA
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/2XILL650/319099
作者单位	1.Natl Res Inst Astron & Geophys NRIAG, Cairo, Egypt; 2.Tanta Univ, Geol Dept, Fac Sci, Tanta, Egypt; 3.Acad Sci Res & Technol, 101 El Kasr El Einy St, Cairo, Egypt
推荐引用方式 GB/T 7714	Abdelazeem, Maha,Salem, Zenhom E.,Fathy, Mohamed S.,et al. Impact of Lithofacies and Structures on the Hydrogeochemistry of the Lower Miocene Aquifer at Moghra Oasis, North Western Desert, Egypt[J],2020,29(6):3789-3817.
APA	Abdelazeem, Maha,Salem, Zenhom E.,Fathy, Mohamed S.,&Saleh, Maha.(2020).Impact of Lithofacies and Structures on the Hydrogeochemistry of the Lower Miocene Aquifer at Moghra Oasis, North Western Desert, Egypt.NATURAL RESOURCES RESEARCH,29(6),3789-3817.
MLA	Abdelazeem, Maha,et al."Impact of Lithofacies and Structures on the Hydrogeochemistry of the Lower Miocene Aquifer at Moghra Oasis, North Western Desert, Egypt".NATURAL RESOURCES RESEARCH 29.6(2020):3789-3817.