干旱区生态环境知识资源中心(Arid): Hydrochemical and isotopic characteristics of thermal groundwater at Farafra Oasis, Western Desert, Egypt

Arid

DOI	10.1144/geochem2020-009
	Hydrochemical and isotopic characteristics of thermal groundwater at Farafra Oasis, Western Desert, Egypt
	Elbarbary, Samah; Zaher, Mohamed Abdel; El-Shahat, Adam; Al Deep, Mohamed; Khedher, Khaled M.
通讯作者	Elbarbary, S
来源期刊	GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS
ISSN	1467-7873
EISSN	2041-4943
出版年	2020
卷号	20 期号:4 页码:408-424
英文摘要	Groundwater from the Nubian sandstone aquifer at Farafra Oasis in the Western Desert of Egypt has been investigated using chemical tracers and environmental isotopes to clarify the hydrochemical features of this aquifer. The majority of the collected samples are characterized by Ca-Cl water type, which may be attributed to dissolution of the carbonate-rich sediments. Calculated saturation indices show that the main hydrogeochemical processes were the dissolution of carbonates and evaporites and the precipitation of Fe-rich minerals. Temperatures calculated using the K-Mg geothermometer show that the reservoir temperature ranges from 58 degrees C to 121 degrees C. The groundwater samples have delta D and delta O-18 values similar to the isotopic content of the Nubian aquifer palaeowater in the Western Desert. Additionally, the isotopic composition suggests that there is no active potential current recharge from the local precipitation. Gamma spectrometry of Ra-226, Th-232 and K-40 activities indicates that the groundwater of the Nubian aquifer is safe with respect to radioactivity. Groundwater in Farafra Oasis is the main source of irrigation and drinking water for local residents. All the samples are excellent for irrigation uses for all types of crops. It is suggested that the water samples may require some treatment regarding the high iron content before usage as drinking water.
英文关键词	Nubian aquifer hydrogeochemical processes isotopes geothermometers Farafra Oasis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000586472900002
WOS关键词	EQUILIBRIA ; AQUIFER ; QUALITY ; AREA
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327356
作者单位	[Elbarbary, Samah; Zaher, Mohamed Abdel; Al Deep, Mohamed] Natl Res Inst Astron & Geophys NRIAG, Cairo 11421, Egypt; [El-Shahat, Adam] Mansoura Univ, Fac Sci, Geol Dept, Mansoura 35516, Egypt; [Khedher, Khaled M.] King Khalid Univ, Coll Engn, Dept Civil Engn, Abha 61421, Saudi Arabia; [Khedher, Khaled M.] Mrezgua Univ Campus, Dept Civil Engn, High Inst Technol Studies, Nabeul 8000, Tunisia
推荐引用方式 GB/T 7714	Elbarbary, Samah,Zaher, Mohamed Abdel,El-Shahat, Adam,et al. Hydrochemical and isotopic characteristics of thermal groundwater at Farafra Oasis, Western Desert, Egypt[J],2020,20(4):408-424.
APA	Elbarbary, Samah,Zaher, Mohamed Abdel,El-Shahat, Adam,Al Deep, Mohamed,&Khedher, Khaled M..(2020).Hydrochemical and isotopic characteristics of thermal groundwater at Farafra Oasis, Western Desert, Egypt.GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS,20(4),408-424.
MLA	Elbarbary, Samah,et al."Hydrochemical and isotopic characteristics of thermal groundwater at Farafra Oasis, Western Desert, Egypt".GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS 20.4(2020):408-424.