GEOELETCTRICAL STUDY ON GROUND WATER AT NORTHERN MARSA ALAM CITY, RED SEA, EGYPT

                  *                                       **                              *

SALEM  ,  E.  , EL-HEFNAWY   ,  M. AND SABER  ,  H.

* The Geological Survey of Egypt and Mining Authority

** Department of Geology, Faculty of Science, Al-Azhar University

ABSTRACT

The red Sea governorate is considered as one of promise regions to create new society. The studied area lies along the Red Sea coast between latitudes 25°6′ N and 25°9′ N and longitudes 34°50′ E and 34°53′ E; it covers an elongate area of about 12 km2. Geolectrical survey which includes 69 vertical electrical sounding stations had been achieved to delineate the ground water condition. This condition includes the origin of groundwater, its level, the direction of water flow and sea water intrusion. The results revealed that the origin of ground water is the flash flood which runs from west to east, where it is mixed with the sea water seepages. So, the ground water characterizing the concerned area is really considered of brackish to saline water quality. The majority of sea  water intrusion runs along the faults which extend from west towards the east where they intersect with the Red sea. The ground above sea level at the western portion of the concerned area, meanwhile it is swinging around sea level near the coast.