Hydrogeological Characteristics of the Quaternary aquifer in Beni Suef area, Egypt

Mohammed Albadr, A. El-Kammar, M. El-Kammar, M. Yehia, H. A. Abu Salem
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引用次数: 1

Abstract

Correponding author: Albadr, Mohammed Aِlbadr, Email: mohammedalbadr20@gmail.com Received: 01/10/2021; Accepted: 07/11/2021 DOI: 10.21608/egjg.2021.93986.1005 ©2021 National Information and Documentation Center (NIDOC) G exploitation in arid and semi-arid areas leads to several hazards such as water level decline, aquifer salinization, water quality deterioration, and waterlogging. The study area is represented by El Fashn District, Beni Suef Governorate, Egypt. The objective of this study is the investigation of the hydrogeological properties of the Quaternary aquifer in Beni Suef area based on the data obtained from the technical reports of REGWA for the years 1996, 2003, 2014 and 2017. In addition, the waterlogging phenomena is considered to allocate areas that adversely affected by soil salinization. Two main aquifers characterize the study area: The Middle Pleistocene and the Early Pleistocene aquifers. The Holocene sediments act as aquitard of the Middle Pleistocene whereas the Early Pleistocene is lacking the Holocene aquitard. Accordingly, the study area is classified based on aquitard thickness into four zones. The Middle Pleistocene aquifer has a maximum thickness of 200 m in the middle parts of the Nile valley near Beni-Suef and diminishes in both the eastern and western directions, whereas the Early Pleistocene aquifer thickness ranges from 81 m to 85 m with a saturated thickness of 64 to 82 m in the study area. The transmissivity of the aquifer is obtained using Cooper-Jacob method. It varies from about 769 to 4796 m2/d for the Early Pleistocene aquifer, and from 656 to 28602 m2/d for the Middle Pleistocene aquifer. Accordingly, the Quaternary aquifer in the study area is characterized by high potentiality according to Gheorghe classification.
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埃及贝尼苏夫地区第四纪含水层水文地质特征
通讯作者:Albadr, Mohammed Aِlbadr, Email: mohammedalbadr20@gmail.com收稿日期:01/10/2021;国家信息文献中心(National Information and Documentation Center, NIDOC)干旱半干旱地区的天然气开发会导致水位下降、含水层盐渍化、水质恶化和内涝等危害。研究区域以埃及Beni Suef省El Fashn区为代表。以1996年、2003年、2014年和2017年中国气象局技术报告资料为基础,对贝尼地区第四系含水层水文地质性质进行了研究。此外,内涝现象被认为是分配受土壤盐渍化不利影响的区域。研究区主要有中更新世和早更新世两大含水层。全新世沉积物是中更新世的含水层,而早更新世缺乏全新世含水层。据此,根据水体厚度将研究区划分为4个带。中更新世含水层在尼罗河谷中部靠近贝尼-苏韦夫的地方最大厚度为200 m,东西方向均逐渐减小,而研究区早更新世含水层厚度为81 ~ 85 m,饱和厚度为64 ~ 82 m。利用Cooper-Jacob法计算了含水层的透射率。早更新世含水层为769 ~ 4796 m2/d,中更新世含水层为656 ~ 28602 m2/d。据此,根据格奥尔赫分类,研究区第四纪含水层具有高潜力特征。
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