Nchisi Island (Chilwa Island; Shirwa Island), Zomba District, Malawi
Latitude: 15°19'54"S
Longitude: 35°36'7"E
Early Cretaceous carbonatite, hosted in sövite.
References
- Woolley, A.R. (1987): Lithosphere metasomatism and the petrogenesis of the Chilwa Province of alkaline igneous rocks and carbonatites, Malawi. Journal Afr. Earth Sci. 6, 891-898.
- Eby, G.N., Roden-Tice, M., Kreuger, H.L., Ewing, W., Faxon, E.H., and Woolley, A.R. (1995): Geochronology and cooling history of the northern part of the Chilwa alkaline province, Malawi. Journal Afr. Earth Sci. 20, 275-288.
- Orris, G.J., and Grauch, R.I. (2002): Rare earth element mines, deposits, and occurrences. USGS Open-File Report 02-189.
- Berger, V.I., Singer, D.A., and Orris, G.J. (2009): Carbonatites of the World. Explored Deposits of Nb and REE - Database and Grade and Tonnage Models. USGS Open-File Report 09-1139.
Mineral List
23 entries listed. 14 valid minerals.
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