“Mt Etinde is a volcano situated on the southwestern flank of the large Mt Cameroon. Its eruptions are dated at 0.65 Ma and took place during the Mt Cameroon eruptive cycle (6 Ma with recorded recent activity). The lava types, unrelated to the Mt Cameroon alkali basalts, are melanephelinites, nephelinites sensu stricto, and numerous and varied nephelinites that contain one or more of the following species: nosean, melilite, perovskite, garnet, aenigmatite, leucite, feldspar and haüynophyres.” (Nkoumbou et al., 1995).
References:
- Esch, E. (1901): Der Vulkan Etinde in Kamerun und seine Gesteine, Sitzungsberichte der königlich preußischen Akademie der Wissenschaften zu Berlin 1901, p 277-299
- Tilley, C.E., (1953): The nephelinite of Etinde, Cameroons, West Africa, Geological Magazine; May 1953; Vol.. 90; no. 3; p. 145-151
- Fitton, G.J., Hughes D.J. (1981): Strontian melilite in a nephelinite lava from Etinde, Cameroon, Mineralogical Magazine, Vol. 44, pp. 261-264
- Nkoumbou, C., Deruelle, B., Velde, D. (1995): Petrology of Mt Etinde Nephelinite Series, Journal of Petrology, Vol. 36, no 2, p. 373-395
- Bindi, L., Bonazzi, P., Fitton, G.J. (2001): Crystal chemistry of strontian soda melilite from nephelinite lava of Mt. Etinde, Cameroon, European Journal of Mineralogy; February 2001; Vol. 13; p. 121-125
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Map Reference: 4°8'42"N , 9°8'17"E
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Mineral List:15 entries listed. 13 valid minerals.
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