ABSTRACT
Tertiary volcanics are common in North Africa (Fig. 3.1). They occur in the Gebel Oweinat-Arknu complex , Jabal Hassawnah, Jabal asSawda , and Jabal Al Haruj al Aswad in Libya, Algeria, Tunisia, and Morocco. They include the Canary Islands in the Central Atlantic offshore Northwest Africa (Figs. 3.1 and 3.2a, b). Volcanic rocks are reported in Egypt also from Kom Ombo, Gulf of Suez , Bahariya oasis, west-central Sinai, Wadi Araba , Gebel Qatrani north of Fayium , and Gebel Khesheb west of Cairo.
