Alkaline Rocks and Carbonatites of the World

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Ghorab Raiyan


Occurrence number: 
Longitude: 33.95, Latitude: 24.1

A 4x2.5 km granite stock located 2 km east of the southern end of Gabal Ghorab Raiyan (a complex of biotite and muscovite granites) consists of biotite and biotite-riebeckite granites, the amphibole in the latter forming large prisms. An average chemical composition is available (El Ramly et al., 1982).

EL RAMLEY, M.F., HILMY, M.E., ALI, M.M. and HASSAN, O.A. 1982b. Petrological and petrochemical studies on some young granite masses in the South Eastern desert of Egypt. Annals of the Geological Survey of Egypt, 12: 73-102.
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