干旱区生态环境知识资源中心(Arid): Geophysical and hydrogeochemical investigations of Nubian sandstone aquifer, South East Sinai, Egypt: Evaluation of groundwater distribution and quality in arid region

Arid

DOI	10.1016/j.jafrearsci.2020.103862
	Geophysical and hydrogeochemical investigations of Nubian sandstone aquifer, South East Sinai, Egypt: Evaluation of groundwater distribution and quality in arid region
	Basheer, Alhussein A.; Alezabawy, Ahmed K.
通讯作者	Basheer, AA
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2020
卷号	169
英文摘要	The expansion in human activities, the absence of running water in South Sinai province in northeastern Egypt and the high cost of seawater desalination render groundwater the essential source for potable water in this arid region. This contribution represents the integration of geophysical and hydrochemical investigations to delineate groundwater distribution and evaluate the water quality of the Cretaceous sandstone aquifer of Wadi Barqa area, Southeastern Sinai. The locations of sites, suitable for geophysical sounding measurements, were selected using digital elevation map. Vertical electrical sounding (VES) and time-domain electromagnetic sounding (TEM) measurements were carried out to determine the depth and thickness of the unsaturated and water-saturated zones as well as the groundwater quality, which were verified by calibrating the estimated electrical resistivity values with the design and logs data of eleven drilled wells next to the sites of geophysical soundings. The VES and TEM data revealed the presence of relatively thick zoned aquifer, overlain by unsaturated zone with variable thickness (83-65 m). The upper aquifer zone (25-43 m thick) is characterized by higher resistivity values (16- 163 Ohm.m), reflecting fresh water signature, whereas the lower aquifer zone (122-150 m thick) has lower resistivity values (16-24 Ohm.m), indicating saturation with semi-fresh to relatively brackish water. Water samples, collected from wells taping the Nubian Sandstone aquifer, have average total dissolved solids (TDS) value of 544 mg/l. The hydrochemical parameters of these samples are consistent with NaCl water type with the majority of samples belonging to high salinity with low sodium categories. This suggests that the groundwater of the aquifer was dominated by old meteoric origin. The compositional characteristics of the groundwater of the investigated aquifer indicate suitability for domestic and irrigation purposes. However, due to the arid nature of Southeastern Sinai province, it is recommended to use this groundwater as potable water.
英文关键词	VES Vertical electrical sounding TEM Electromagnetic sounding Hydrochemistry Nubian Sandstone aquifer South East Sinai Egypt
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000540671100004
WOS关键词	COASTAL AQUIFER ; RED-SEA ; WATER ; NITRATE ; VULNERABILITY ; PARAMETERS ; DELINEATE ; EVOLUTION ; SEDIMENTS ; SALINITY
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/2XILL650/324769
作者单位	[Basheer, Alhussein A.; Alezabawy, Ahmed K.] Helwan Univ, Fac Sci, Geol Dept, Helwan 11795, Egypt
推荐引用方式 GB/T 7714	Basheer, Alhussein A.,Alezabawy, Ahmed K.. Geophysical and hydrogeochemical investigations of Nubian sandstone aquifer, South East Sinai, Egypt: Evaluation of groundwater distribution and quality in arid region[J],2020,169.
APA	Basheer, Alhussein A.,&Alezabawy, Ahmed K..(2020).Geophysical and hydrogeochemical investigations of Nubian sandstone aquifer, South East Sinai, Egypt: Evaluation of groundwater distribution and quality in arid region.JOURNAL OF AFRICAN EARTH SCIENCES,169.
MLA	Basheer, Alhussein A.,et al."Geophysical and hydrogeochemical investigations of Nubian sandstone aquifer, South East Sinai, Egypt: Evaluation of groundwater distribution and quality in arid region".JOURNAL OF AFRICAN EARTH SCIENCES 169(2020).