Enviromental Isotoes And Hydrochemical Studies On The Groundwater Of Wadi Sudr,south West Sinai,egypt:

Tamer Sayed Ahmed Rizk

The present thesis deals with the Hydrochemical and Environmental Isotopes investigations at Wadi Sudr Delta to the southwest of Sinai. This could be considered as a basis for gaining new insights relating to the groundwater management for Ras Sudr delta area.The thesis comprises the following chaptersChapter One: Introduction and Literature.Chapter Two: Geomorphological features and geological aspects.Chapter Three: Hydrochemistry and water qualityChapter Four: Environmental IsotopesChapter (1)Introduction and LiteratureThis chapter contains a general description of the characteristics of the study area (location and climate), an outline of the aims of the study and the general methodology followed for conducting the investigation as well as an overview of the previous studies conducted in this areaLocation and Climate conditions of the study area:The area of study of Wadi Sudr Delta is situated on the eastern side of the Gulf of Suez. It covers an area of about 670 km2 bounded between latitude 29º 30/ and 29º 50/ and longitudes 32º 40/ and 33º 20/.In Sudr area as well as in other localities along the Gulf of Suez, the climate is characterized by extreme aridity with low and erratic rainfall, high evaporation rates and low relative humidity, high summer temperature and generally vigorous winds. Average values of the climatic parameters as recorded at Ras Sudr station are included in the thesis.Aims of the Present Work:-a) Defining the recharge sources and its renewability.b) Investigating the flow regimes and the impact of lithofacies and structural elements on the hydrological systemc) Highlighting the mechanism of Salinization and water quality parametersd) Evaluating the groundwater quality for different uses (drinking, irrigation, industry…).Chapter (2)Geomorphological Features and Geological SettingGeomorphologic setting:Three geomorphological units are described in Wadi Sudr area:-• The Structural Plateau: It is consideration.Water Bearing formation: Within Wadi Sudr, groundwater occurs in the following two main formations:1. The fractured