Biotites from the granitoid rocks of El-Imra, Eastern Desert, Egypt have been examined. The chemical data of 8 new analyzed biotites are presented. The behaviour of major and trace elements in the examined biotites are ...

The Kharita, the Dahab and the Alamein Formations are representing the upper part of the Lower Cretaceous rock sequence in the northern part of the Egyptain Western Desert. Some core samples have been obtained from these ...

Detailed investigation of the three Eocene formations in the Northern Plateau revealed remarkable differences in their biogenic and lithologic characters. Eleven different microfacies associations have been recognized. ...

The Lower Cretaceous sequences in the northern part of the Western Desert has been penetrated by many of drilled bore—holes adopted by different oil companies. It was encountered at depths ranging from 1200 to 3500 m. The ...

Open seas waters have a chlorinity (Cl%o) of 35%o. Chloride and sodium are the dominant ionic species in sea water; where their gravimetric contents are 89.98 and 77.39% of total anions and cations, respectively. Sodium ...

The Khashm Formation is introduced as a new lithostratigraphic unit to include the sandstones and shale interbeds which constitute the upper part of the Cretaceous Wasia Group (s. /.) outcropping in central Arabia. It ...

Thirteen limestone samples representing the Rus Formation (Lower Eocene) are selected' from four locations in Qatar Peninsula. These samples are subjected to electrical resistivity, porosity, shaliness factor and water ...

Combined paleontological and petrological studies on the Eocene rocks at Maghagha revealed that the succession belongs to one biostratigraphic zone; the Numrnulites gizehensis gizehensis zone. Nummulites striatus was ...

Most of the deltaic sandstone reservoirs exhibit complex lithofacies as well as petrophysical variations in both time and space. Facies analysis and reconstruction of facies patterns for the Algyo-2 reservoir rocks encountered ...

A geochronological sequence of the main phases of igneous activity in Egypt during the Mesozoic is presented in this paper. This is essentially based on scrutinized isotopic age data. New K / Ar ages are also included. Three ...