HYDROCHEMICAL STUDIES FOR THE QUATERNARY GROUNDWATER IN EL-TOR AREA AND ITS VACCINATES, SOUTH SINAI, EGYPT

Abstract

The present thesis deals with the geomorphological, hydrogeological , hydrochemical and the evaluation of ground water for different uses ofEl-Tor area and its vicinities in the middle part ofEl-Qaa plain. It delineated by latitudes 28° I 0' and 28° 20' N, and longitudes 33° 35' and 33° 40' E. The geomorphological and hydrogeological survey

depending on the previous work while the hydrochemical study depend on the field and laboratorial work. This thesis includes four chapters:

Chapter I : Experimental work

This chapter includes the procedure of measuring The instrumental methods of analysis include measuring hydrogen ion concentration (pl-1), electrical conductivity (EC), sodium (Na+), potassium (K+), calcium(Ca2+), magnesium (Mg2+), sulphate (So/•), carbonate (CO/'),

bicarbonate (HC03'), nitrate (N03.), silica as (Si02), iodide, bromide and heavy metals (iron, manganese, copper, and cadmium).

Chapter II : Geomorphogical, geological and hydrological aspects

1- Geomorphological and geological setting :

Geomorphologicaly the study area lies in the middle part ofEl-Qaa plain which is an extensive gravelly plain stretching in NW-SE direction. The Quaternary deposits in the southern area of El-Qaa plain (the investigated area) are divided into three units, the upper unit occurs in limited area along the downstream of Wadi A wag and El Wadi village near El-Tor (it is composed of gravels and sands with a thickness less than l 00 m), the middle unit represents the prospective aquifer in El Gobeil area and the lower unit is mainly consisted of sands and gravels