Integrated geoelectrical survey for groundwater and shallow subsurface evaluation: case study at Siliyin spring, El-Fayoum, Egypt

Siliyin spring is one of the many natural fresh water springs in the Western Desert of Egypt. It is located at the central part of El-Fayoum Delta, which is a potential place for urban developments and touristic activities. Integrated geoelectrical survey was conducted to facilitate mapping the grou...

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Bibliographic Details
Published in:International journal of earth sciences : Geologische Rundschau 2010-09, Vol.99 (6), p.1427-1436
Main Authors: Metwaly, Mohamed, El-Qady, Gad, Massoud, Usama, El-Kenawy, Abeer, Matsushima, Jun, Al-Arifi, Nasser
Format: Article
Language:English
Subjects:
Clay
Creeks & streams
Earth and Environmental Science
Earth Sciences
Electrical resistivity
Geochemistry
Geology
Geophysics
Geophysics/Geodesy
Groundwater
Mineral Resources
Review Article
Sand
Sedimentology
Structural Geology
Surveying
Water resources
Water springs
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Summary:Siliyin spring is one of the many natural fresh water springs in the Western Desert of Egypt. It is located at the central part of El-Fayoum Delta, which is a potential place for urban developments and touristic activities. Integrated geoelectrical survey was conducted to facilitate mapping the groundwater resources and the shallow subsurface structures in the area. Twenty-eight transient electromagnetic (TEM) soundings, three vertical electrical soundings (VES) and three electrical resistivity tomography (ERT) profiles were carried out around the Siliyin spring location. The dense cultivation, the rugged topography and the existence of infra structure in the area hindered acquiring more data. The TEM data were inverted jointly with the VES and ERT, and constrained by available geological information. Based on the inversion results, a set of geoelectrical cross-sections have been constructed. The shallow sand to sandy clay layer that forms the shallow aquifer has been completely mapped underneath and around the spring area. Flowing of water from the Siliyin spring is interconnected with the lateral lithological changes from clay to sand soil. Exploration of the extension of Siliyin spring zone is recommended. The interpretation emphasizes the importance of integrating the geoelectrical survey with the available geological information to obtain useful, cheap and fast lithological and structural subsurface information.
ISSN:1437-3254
1437-3262
DOI:10.1007/s00531-009-0458-9