NDLI: Contribution to the hydrogeology of the Lower Cretaceous aquifer in east Central Sinai, Egypt

Content Provider	Springer Nature Link
Author	Ghoubachi, Saad Younes
Copyright Year	2010
Abstract	The present work deals with the groundwater aquifer of the Lower Cretaceous sandstone and its sustainable development in Sinai. The studied aquifer system is the most promising groundwater system in Sinai due to its wide extension, hug storage, and good quality. The objective of this paper aims to elucidate the hydrogeological characteristics of the Lower Cretaceous aquifer. The aquifer system occurs under confined conditions. The top surface of the Lower Cretaceous dips steeply towards the southwest direction with step faults. The average sand percent of the penetrated aquifer attains 54%. The main direction of groundwater flow is generally from southwest and locally is concentric to the center of study area related to the influence of the graben block. The aquifer has a hydraulic gradient generally reaches 0.0011 m/m and attains 0.0028 in central portion of study area. The aquifer parameters (effective porosity, transmissivity, and hydraulic conductivity) increase towards the northeast direction with increasing of the sand percentage. Durov diagram plot revealed that the groundwater has been a final stage evolution represented by a NaCl water type. The groundwater salinity increases towards the central of study area coinciding with groundwater flow. The groundwater salinity of the Lower Cretaceous aquifer is brackish water and varies from 2,510 to 5,256 ppm and unsuitable for drinking and domestic purposes.فى سيناء. يعتبر هذا الخزان اكبر خزان جوفى واعد فى سيناء نظرا لإمتداده الواسع ومخزون المياه الجوفية الهائل بلاضافة الى نوعية المياه الجيدة. توضح هذه الدراسة الخصائص الهيدروجيولوجية لخزان الكريتاوى السفلى حيث توجد المياه الجوفية لهذا الخزان تحت الظروف الحبيسة. السطح العلوى لهذا الخزان يميل بشكل حاد فى اتجاه الشمال الغربى مع اتجاه حركة الصدوع فى منطقة الدراسة. يصل متوسط نسبة الرمال فى هذا الخزان الى حوالى 54% وتزيد فى اتجاه الشمال الشرقى. يكون الاتجاه العام لحركة المياه من الجنوب الغربى ومحليا يكون مركزى الى مركز منطقة الدراسة بسبب تأثير الصدوع. يصل الميل الهيدروليكى لهذا الخزان الى 0.001 م/م ولكن يصل الى حوالى 0.0028 فى مركز منطقة الدراسة. تزيد العوامل الهيدروليكية لهذا الخزان (المسامية الفعالة والنفاذية والتوصيل الهيدروليكى) فى اتجاه الشمال الشرقى مع اتجاه زيادة نسبة الرمال فى الخزان.يوضح شكل دوورف ان المياه الجوفية لخزان الكريتاوى السفلى تمثل المرحلة الاخيرة من العمليات الكيميائية (كلوريد الصوديوم). ملوحة المياه الجوفية لهذا الخزان تترواح من 2510 الى 5256 جزء فى المليون (من النوع المالح) وتزيد فى مركز منطقة الدراسة مع اتجاه حركة المياه الجوفية.
Starting Page	1103
Ending Page	1115
Page Count	13
File Format	PDF
ISSN	18667511
Journal	Arabian Journal of Geosciences
Volume Number	5
Issue Number	5
e-ISSN	18667538
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-12-23
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hydrogeology Lower Cretaceous aquifer Groundwater East Central Sinai Egypt Earth Sciences
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Environmental Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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