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Radiometric and mineralogical dataset of microgranite dykes and stream sediments of Ras Abda area, north Eastern Desert, Egypt
Faculty
Science
Year:
2019
Type of Publication:
ZU Hosted
Pages:
Authors:
Fatima Sayed Mohamed Ramadan
Staff Zu Site
Abstract In Staff Site
Journal:
Can. J. Physiol. Pharmacol. Data in brief
Volume:
Keywords :
Radiometric , mineralogical dataset of microgranite dykes , stream
Abstract:
Ras Abda Area is located in the north part of the Eastern desert, and is characterized by a rugged topography and high relief. The main exposed rock units in the area comprise older granites, younger gabbros and granites as well as several types of post granite dykes (rhyolite, basic and microgranite dykes). Radiometric measurements indicated that the microgranite samples are characterized by anomalous concentrations of the radioelements which mean that the rocks originated from radioelements-bearing magma and may be subjected to epigenetic processes of leachability and migration of uranium. The stream sediments samples show low levels of radioactivity where eU ranges from 4.0 to 7.0 ppm with an average of 5.3 ppm, and eTh ranges from 6.0 to 18.0 ppm with an average of 10.65 ppm. The eTh/eU ratio ranges from 1.2 to 3.6 where the samples distal from the microgranite dykes are characterized by the highest eTh/eU ratio (3.6) while those close to the dykes have the lower eTh/eU ratios. Generally, the average eTh/eU ratio (~2.08) is lower than the world ratio (3.5) implying that uranium probably enriched from an adjacent source may be the microgranite dykes. The calculated factors of equilibrium (P and D) indicated disequilibrium state for both rocks types (microgranite and stream sediments) and referred to incomplete U-decay series. Mineralogical studies revealed that the heavy minerals could be classified into: a) radioactive minerals comprising uranophane, kasolite, sklodowskite, thorite and Corresponding author.
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Department Related Publications
Osama Mohamed Abdelmoneim Elbadry, "El-Badry, O. Abul Enein & Moursi, : Surface Triassic of Arif El Naga, Sinai, Egypt: A Petrologic study: M.E.R.C., Ain ¬Shams Univ., Earth Sci. Ser., V. 11, p. 51 67. (1997)", لايوجد, 1900
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Osama Mohamed Abdelmoneim Elbadry, "Gadallah, Abdel-Shafi, Abdel Razek, and El-Badry, O. : “Reservoir Evaluation of Nukhul Clastics, South Gulf of Suez, Egypt”. GRMENA-1, First International Conference on Georesources in the Middle East and North Africa. (2005).", لايوجد, 1900
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Osama Mohamed Abdelmoneim Elbadry, "Hassaan, El-Badry, O. Atawiyaa & Zalat, : Sedimentology and Chemistry of Eocene Rocks, Maadi Area, Egypt : Science Research Series, Ain Shams Univ., Cairo, V. IV. (1984)", لايوجد, 1900
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Osama Mohamed Abdelmoneim Elbadry, "El Badry, O. & Ayioub : Hammarn Faraon carbonate sedimentation, Shoab Ali Field, Egypt: Isotopic and petrographic study : Sedimentology of Egypt, V. 4, p. 75 87. (1996)", لايوجد, 1900
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Osama Mohamed Abdelmoneim Elbadry, "El-Badry, O. Kamel & Marie, : Petrography, depositional history and physico mechanical properties of some evaporites, Ras Malaab, Gulf of Suez, Egypt : Bull. Fac. Sci., Zagazig Univ., V. 18, p. 199 223. (1996)", لايوجد, 1900
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