Genetic Affiliations of Wadi El- Sherm El- Qibli Alkali Feldspar Granite Intrusion and the Co-Magmatic Hydrothermal Activity, Eastern Desert, Egypt
Hassaan, M., M., S., Elsherif, A., Saied, M., El Shahat, O., El Naggar, A. (2018). Genetic Affiliations of Wadi El- Sherm El- Qibli Alkali Feldspar Granite Intrusion and the Co-Magmatic Hydrothermal Activity, Eastern Desert, Egypt. EKB Journal Management System, 62(1), 217-232. doi: 10.21608/egjg.2018.366367
M. M. Hassaan; Sakr S. M.; A. M. Elsherif; M. Saied; O. R. El Shahat; A. R. El Naggar. "Genetic Affiliations of Wadi El- Sherm El- Qibli Alkali Feldspar Granite Intrusion and the Co-Magmatic Hydrothermal Activity, Eastern Desert, Egypt". EKB Journal Management System, 62, 1, 2018, 217-232. doi: 10.21608/egjg.2018.366367
Hassaan, M., M., S., Elsherif, A., Saied, M., El Shahat, O., El Naggar, A. (2018). 'Genetic Affiliations of Wadi El- Sherm El- Qibli Alkali Feldspar Granite Intrusion and the Co-Magmatic Hydrothermal Activity, Eastern Desert, Egypt', EKB Journal Management System, 62(1), pp. 217-232. doi: 10.21608/egjg.2018.366367
Hassaan, M., M., S., Elsherif, A., Saied, M., El Shahat, O., El Naggar, A. Genetic Affiliations of Wadi El- Sherm El- Qibli Alkali Feldspar Granite Intrusion and the Co-Magmatic Hydrothermal Activity, Eastern Desert, Egypt. EKB Journal Management System, 2018; 62(1): 217-232. doi: 10.21608/egjg.2018.366367

Genetic Affiliations of Wadi El- Sherm El- Qibli Alkali Feldspar Granite Intrusion and the Co-Magmatic Hydrothermal Activity, Eastern Desert, Egypt

Egyptian Journal of Geology
Article 13, Volume 62, Issue 1, 2018, Page 217-232  XML PDF (3.22 MB)
DOI: 10.21608/egjg.2018.366367
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Authors
M. M. Hassaan1; Sakr S. M.2; A. M. Elsherif3; M. Saied4; O. R. El Shahat1; A. R. El Naggar1
1Geology Department, Faculty of Science, Al Azhar University, Cairo, Egypt.
2Tiba University, AL Madina El Menwarah, Saudi Arabia.
3Faculty of Engineering, Northern Border Univ. Arar, Saudi Arabia.
4Metallurgical Development Research Center, Helwan, Egypt .
Abstract
Wadi El- Sherm El- Qibli granite outcrops forming the northern - northeastern rims of Wadi El Sherm
El Qibli comprise two types; pale whitish pink altered muscovite albite granite (M A granite with
alteration zones) and the red alkali feldspar granite (A F granite). The A F granites are intruding with
sharp intrusive contact the M A granite, island arc meta-volcano-sedimentary and meta-andesite rocks.
The A F granites are coarse- grained, composed of quartz, orthoclase, microcline, and plagioclase
arranged in decreasing order with the accessories; zircon, muscovite, sericite and opaques, showing
hypidiomorphic, occasionally porphyritic, more common perthitic and pioklitic textures of anorogenic
within-plate tectonic setting. The EDAX and ore microscope investigations recorded magnetite, ilmenite,
hematite, pyrite, arsenopyrite, galena, rutile, zircon and monazite. Besides these investigations show that
hematite- rutile, sericite-muscovite, are alteration products of ilmenite and plagioclase respectively. As
well, the substitution of zircon by REEs, U, Hf, and the stannite - celestite are products of alteration
processes due to action of oxidizing hydrothermal fluids co-magmatic to the intrusion of the A F granites.
The recorded Cr, Ni, Sn, Nb, Ba, Sr, Cu, Zn, Pb geochemical association beside the recorded Au in Khor
Abu-Meriewa is an evidence of existence of cordilleran-extensional gold deposit at deeper levels and Nb-
U-Th-REEs-Hf mineralization occurs within the alteration zones of M A granite.
Keywords
Alkali feldspar granites; mineralogical survey; mineralization; Wadi El Sherm El Qibli
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