stripes
Occurrence number:
049-00-024
Country:
Egypt
Location:
Longitude: 34.23, Latitude: 24.45
Carbonatite:
No
This intrusion, emplaced in Nubian sandstones, forms an annular ridge 1 km in diameter rising 25-30 m above wadi level. It is composed of latites which are cut by latite dykes that are also annular; the dykes contain sodic amphiboles. There is a further elongate latite intrusion to the southwest of Gabal El Ghurfa around which is a system of arcuate dykes of olivine basalt. Another intrusion 4 km to the south-southeast (El Ramly et al., 1971) consists of basalts and phonolites. Analyses of latite, phonolite and basalt are given by El Ramly et al. (1971).
References:
EL RAMLY, M.F., BUDANOV, V.I. and HUSSEIN, A.A.A. 1971. The alkaline rocks of south-eastern Egypt. Geological Survey of Egypt, Paper, 53: 1-111.
Map:
Fig. 3_50 Gabal El Ghurfa (after El Ramly et al., 1971, Plate 13).
Location: