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2. Biomodal volcanism of a volcanosedimentary sequence around Gabel Um Halham, Central Eastern Desert, Egypt;Abu El-Ela;Bulletin Faculty Science Assiut University, Egypt,1990
3. Bimodal volcanism of the Igla Eliswid-Um Khariga metavolcanics, Eastern Desert, Egypt;Abu El-Ela;Journal African Earth Sciences,1992
4. The petrology of the Abu Zawal gabbroic intrusion, Eastern Desert, Egypt: an example of an island-arc setting;Abu El-Ela;Journal African Earth Sciences,1996
5. Geology and geochemistry of bimodal volcanism north of Gabel Zabara, Eastern Desert, Egypt;Abu El-Ela;Egyptian Journal Geology,1992