Alkaline Rocks and Carbonatites of the World

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Dolbel-Kourki

stripes

Occurrence number: 
121-00-026
Country: 
Niger
Location: 
Longitude: 0.37, Latitude: 14.53

Between the villages of Dolbel and Kourki a 10x2-3 km granite cutting greywackes of the Birrimien (Eburnian) system is shown on the 1:200,000 geological map of the 'Occidental' area, Niger (Machens, 1967) and classified as one of the 'granites ultimes'. It is symbolized as an aegirine-bearing granite at its northern end and probably aegirine- and amphibole-bearing to the south.

References: 
MACHENS, E. 1967. Notice explicative sur la Carte Geologique du Niger Occidental à l'échelle du 1/200 000. Direction des Mines et de la Geologie, Republique du Niger, 1-36.
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