Petrogenesis of Homrat El-Girigab Alkali-Feldspar Granites, Northern Eastern Desert, Egypt
Abstract:Homrat El-Girigab area located at Northern Eastern Desert which, characterized by abundant intrusion of calc-alkaline and alkaline/peralkaline granitoids and their associated volcanics. These granitoids have a particular geodynamic interest as they provide an outstanding opportunity to tell how continental crust of ANS was formed. Homrat El-Girigab area is covered by Dokhan volcanics (andesite & dacites), which intruded by alkali-feldspar granites. The chemistry of biotites indicates that, the alkali-feldspar … Show more
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