mineralization was studiedin the
younger granite samples collected from GabalGattar, 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 upto (66.80% ZrO2), whichsuggests
that volcanic rocks were probably the source of such a deposit. High level
Calc-alkaline plutons as Qattar granite may have been associated with their
volcanic equivalent emplaced in the surrounding area or now eroded. Lead
content of the pitchblende mineralization is high and with moderate volcanics
(up to 7.71% PbO). In contrast, it is low in ThO2, Y2O3 and REE2O3. HighZr and Pb content associated withpitchblende mineralization from Gattargraniteindicates
M. A. Moussa and I. Abu El Leil, “Structural Analysis as a Guide to Mineralization Trends in the North Eastern Desert of Egypt,” Annals of the Geological Survey of Egypt, Vol. 5, No. 13, 1983, pp. 271-276.
R. J. Stern, D. Gottfried and C. E. Hedge, “Lat Precambrian Rifting and Crustal Evolution in North Eastern Desert of Egypt,” Geology, Vol. 12, No. 3, 1984, pp. 168-172.
K. M. Willis, R. J. Stern and N. Clauer, “Age and Geochemistry of Lat Precambrian Sediments of Hammamt Series from the North Eastern Desert, Egypt,” Precambrian Research, Vol. 42, No. 1-2, 1988, pp. 173-187.
M. Y. Attawiya, “Petrochemical and Geochemical Studies of Granitic Rocks from Gabal Gattar Area, Eastern Desert, Egypt,” Arab Journal of Nuclear Sciences and Applications, Cairo, Vol. 23, No. 2, 1990, pp. 13-30.
T. A. Sayyah and M. Y. Attawiya, “Contribution of the Mineralogy of Uranium Occurrence of Gabal Gattar Granites, Eastern Desert, Egypt,” Arab Journal of Nuclear Sciences and Applications, Cairo, Vol. 23, No. 1, 1990, pp. 171-184.
A. B. Salman, I. E. El-Aassy and M. H. Shalaby, “New Occurrence of Uranium Mineralization in Gabal Gattar, Northern Eastern Desert, Egypt,” Annals of the Geological Survey of Egypt, Vol. 16, 1986-1990, pp. 31-34.
A. M. El Kammar, A. E. Salman, M. H. Shalaby and A. I. Mahdy, “Geochemical and Genetical Constraints on Rare Metals Mineralization at the Central Eastern Desert of Egypt,” Geochemical Journal, Vol. 35, 2001, pp. 117-135.
A. El Shershaby, “Study of Radioactivity Levels in Granite of Gable Gattar II in the North Eastern Desert of Egypt,” Applied Radiation and Isotopes, Vol. 57, No. 1, 2002, pp. 131-135.
M. M. El-Sayed, M. H. Shalaby and M. A. Hassanen, “Petrological and Geochemical Constraints on the Tectonomagmatic Evolution of the Late Neoproterozoicgranitoid Suites in the Gattar Area, North Eastern Desert, Egypt,” Journal of Mineralogy and Geochemistry, Vol. 178, No. 3, 2003, pp. 239-275.
M. F. Raslan, “Occurrence of Uraniferous Iron Grains at Gabal Gattar, El Missikat and El Erediya Granites in Eastern Desert of Egypt,” Resource Geology, Vol. 59, No. 1, 2008, pp. 99-105.
S. A. Wasfi, E. L. Iliase and M. I. Mousa, “Discriminations of Younger Granitic Masses at Gabal Gattar Area, North Eastern Desert, Egypt, Using Remote Sensing Techniques,” Egyptian Journal of Remote Sensing and Space Sciences, Vol. 12, 2009, pp. 127-148.
A. Abdel Warith, M. Michalik and B. H. Ali, “Luorine Enriched Granites: Chemical Characterization and Relation to Uranium Mineralization,” Journal of Applied Sciences Research, Vol. 6, No. 4, 2010, pp. 299-323.
R. J. Stern and C. E. Hedge, “Geochronologic and Isotopic Constraints on Late Precambrian Crustal Evolution in the Eastern Desert of Egypt,” American Journal of Science, Vol. 285, No. 2, 1985, pp. 97-127.
E. M. M. Moussa, “Geochronlogical Studies of Some Granitoids, Application to Geochemical Evolution and Tectonic History of the Northern Eastern Desert, Egypt,” Ph.D. Thesis, Ain Shams University, Cairo, 1998.
E. M. El Shazaly, F. S. Bakhit and M. E. Mostafa, “Significant Structural Trends and the Relation to Radioactivity in El-Missikat Granite Pluton, Central Eastern Desert, Egypt,” In: Proceedings of the 6th International Congress for Statistics, Computer Science Social and Demographic Research, Ain Shams University, Cairo, 1981, pp. 339-418.
F. S. Bakhit and I. A. Kassas, “Distribution and Orientation of Radioactive Veins in the El-Erediya-El-Missikat Area, Central Eastern Desert, Egypt,” International Journal of Remote Sensing, Vol. 10, No. 3, 1989, pp. 565-581.
J. M. Pyle, F. S. Spear, D. A. Wark, C. G. Daniel and L. C. Storm, “Contributions to Precision and Accuracy of Monazite Microprobe Ages,” American Mineralogist, Vol. 90, No. 4, 2005, pp. 547-557.
K. Suzuki and M. Adachi, “Precambrian Provenance and Silurian Metamorphism of the Tsubonosawaparagneiss in the South Kitakamiterrane, Revealed by the Chemical Th-U-Total Pbisochron Ages of Monazite, Zircon and Xenotime,” Geochemical Journal, Vol. 25, No. 5, 1991, pp. 357-376.
K. Suzuki and M. Adachi, “The Chemical Th-U-Total Pbisochron Ages of Zircon and Monazite from the Grey Granite of the HidaTerrane, Japan,” The Journal of Earth Sciences, Nagoya University, Vol. 38, 1991, pp. 11-38.
J. M. Montel, S. Foret, M. Veschambre, C. Nicollet and A. Provost, “Electron Microprobe Dating of Monazite,” Chemical Geology, Vol. 131, No. 1-4, 1996, pp. 37-53.
W. L. Zhang, R. C. Wang and R. M. Hua, “Chemical Th-U-Total Pbisochron Dating of Accessory Minerals: Principle and Application to Zircon from the Piaotang Muscovite Granite in the Xihuashan Complex, South China,” Geological Review, Vol. 49, No. 3, 2003, pp. 253-260.
S. B. Zhang, Y. F. Zheng, Y. B. Wu, Z. F. Zhao, S. Gao and F. Y. Wu, “Zircon U-Pb age and Hf-O Isotope Evidence for Paleoproterozoic Metamorphic Event in South China,” Precambrian Research, Vol. 151, No. 3-4, 2006, pp. 265-288.
S. W. Liu, G. M. Shu, Y. M. Pan and Q. N. Dang, “Electron Microprobe Dating and Metamorphic Age of Wutai Group, Wutai Mountains,” Geological Journal of China Universities, Vol. 10, No. 3, 2004, pp. 356-363.
Q. N. Dang, S. W. Liu, G. M. Shu and Q. G. Li, “Electron Microprobe Dating of Monazite and Its Application to the Metamorphism in the Eastern Tianshan, Xinjiang,” Geological Journal of China Universities, Vol. 10, No. 4, 2004, pp. 477-487.