نتایج جستجو برای: Gabal Gharra
تعداد نتایج: 96 فیلتر نتایج به سال:
The Lower Miocene deposits in Gabal Gharra, Cairo – Suez District, unconformably overlies the Oligocene and Eocene deposits. They consist predominantly of regressive and transgressive mixed siliciclastic / carbonate sediments of shallow marine environments. The Lower Miocene deposits are represented lithostratigraphically by the Gharra Formation that comprises four members, from base to top: Ag...
The Upper Cretaceous/Lower Tertiary Maghra El-Bahari Formation at Gabal Ataqa and Gabal Shabrawet in the northeastern portion of the Eastern Desert of Egypt is subdivided into two informal lithostratigraphic parts: lower and upper. The lower part has common features of alluvial floodplain-dominated deposits with occasional occurrences of crevasse splay deposits. The upper part has sediments typ...
Pitchblende mineralization was studied in the younger granite samples collected from Gabal Gattar, north Eastern Desert, Egypt using electron scanning microscope (ESM) and electron probe microanalyses (EPMA). This study revealed that this pitchblende contains significant Zr content reaching up to (66.80% ZrO2), which suggests that volcanic rocks were probably the source of such a deposit. High ...
Prediction of heterogeneity and anisotropy of oxidised pyrite crystals using electrical measurements
Some electrical, geochemical, and mineralogical investigations analyses were made on some cubic oxidized Pyrite crystals (Gabal El-Sibai). Samples (chemically) are constituted from Fe2O3, SiO2,...
The band-winged Pycnodictya galinieri galinieri (Reiche & Fairmaire, 1849) and its genus Pycnodictya Stål, 1873 (Orthoptera: Acrididae: Oedipodinae) are recorded for the first time for the Egyptian fauna. The species was collected from Gabal Elba, in the southeastern corner of Egypt. This record expands the known distributional range of Pycnodictya galinieri towards the north of Africa. Descrip...
Older and younger granitoids are widespread throughout the basement rocks of NE Egypt. Therefore, they are played a significant role in the evolution of the Pan-African crust. The Wadi El Sheikh-Gabal Saint Katherine area comprise three distinctive magmatic granitoid suites, namely: (1) calc-alkaline older quartz monzodiorite-tonalite suite (COG), (2) calcalkaline younger monzogranite suite (CY...
M. Gabal, A. Arauzo, A. Camón, M. Castrillo, E. Guerrero, M. P. Lozano, M. P. Pina, J. Sesé, S. Spagna, J. Diederichs, G. Rayner, J. Sloan, F. Galli, W. van der Geest, C. Haberstroh, N. Dittmar, A. Oca, F. Grau, A. Fernandes, and C. Rillo Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Zaragoza 50009, Spain Instituto de Nanociencia de Aragón (INA), Universidad de Zarag...
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