Alkaline Rocks and Carbonatites of the World

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Hossere Nyore

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Occurrence number: 
029-00-009
Country: 
Cameroon
Location: 
Longitude: 13.02, Latitude: 8.73

Hossere Nyore is a multiple granite intrusion of 10x8 km. The principal rock is a coarse biotite granite and the youngest granite contains albite, biotite and riebeckite. The peralkaline granite has sharp contacts with the earlier granites. A little cassiterite and possible columbite have been found in the riebeckite granite (Lasserre, 1978).

Age: 
A Rb-Sr age based on biotite and whole rocks of 550 Ma is reported by Lasserre (1978).
References: 
LASSERRE, M. 1978. Mise au point sur les granitoides dits "ultimes" du Cameroun: gisement, pétrographie et géochronologie. Bulletin du Bureau de Recherches Géologiques et Minières. Paris, IV: 143-59.
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