Alkaline Rocks and Carbonatites of the World

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El-Nuhud (Gebel El-Nuhud)

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Occurrence number: 
049-00-021
Country: 
Egypt
Location: 
Longitude: 34.35, Latitude: 24.55

Two plugs approximately 12 km southeast of Abu Khrug, and 6 km apart, consist of sanidine, alkali feldspar, a little quartz, sodic amphibole and iron oxides. Analyses of two samples, including some trace elements, are given by Gindy et al. (1978).

Age: 
K-Ar on trachyte gave 78 Ma (Higazy and El Ramly, 1960).
References: 
GINDY, A.R., KHALIL, S.O., EL RAMLY, M.F. and ARSLAN, A.I. 1978. Contributions to the petrochemistry and geochemistry of the alkaline rocks of Gabal Abu Khruq and Gabal El-Nuhud, South-eastern desert, Egypt. Chemie der Erde, 37: 285-301.HIGAZY, R.A. and EL-RAMLY, M.F. 1960. Potassium-argon ages of some rocks from the Eastern desert of Egypt. Geological Survey of Egypt, Paper, 7: 1-18.
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