Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : Geophysical and Hydrogeological Studies For Groundwater Aquifer Assessment West Wadi AL Natrun – Egypt

Auteur : HEGAB, MOSTAFA GAMAL MOSTAFA

Etablissement de soutenance : Menoufia University

Grade : Doctor of Philosophy (PhD) 2021

Résumé
Groundwater resources play an essential role in confronting water resource scarcity in arid regions. The present work aims to identify the physical properties of the Moghra aquifer lying to the west of Wadi El- Natrun. Depth to basement rocks, structural elements, and depth to the aquifer were detected using gravity and geoelectric resistivity tools. Different hydrogeologic and hydrochemical parameters were used to classify the potentiality of the Moghra aquifer in the area of study. The Bouguer gravity map had been analyzed for various filter and separation techniques besides 2-D, and 3-D forward models to constrain fault trends and depth to the basement. It was found that the trends of faults are NE – SW, NW – SE, E - W and N - S, while the main ones are NE–SW, and NW – SE. The depths of the basement differ from less than 5000 m to nearly 7500 m. Forty stations of Vertical Electrical Sounding (VES) were measured to define different subsurface geoelectrical units and the water-bearing zones. They are found to be six geoelectrical units while the sixth unit is the groundwater bearing unit. The resistivity values of this unit range between 8 and 50 Ohm.m, and the expected depths of its uppermost surface differ from 106 m to 196 m from the surface.

Présentation étendue (EULC)