Alkaline Rocks and Carbonatites of the World

Setup during HiTech AlkCarb: an online database of alkaline rock and carbonatite occurrences

Western Ghurfa

stripes

Occurrence number: 
049-00-022
Country: 
Egypt
Location: 
Longitude: 34.13, Latitude: 24.48
Carbonatite: 
No

An annular ridge 0.5 km in diameter is composed of sanidine trachytes and cut by arcuate dykes of the same composition. A dyke of phonolite runs along the northern part of the ridge. Small outcrops of the country rock Nubian sandstones and basalt are found within the ring.

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.

Location: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith