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Nepheline from
Usaki Ijolite Complex, Homa Bay County, Kenya


Locality type:Volcanic Complex
Classification
Species:Nepheline
Formula:Na3K(Al4Si4O16)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Nepheline data
Locality Data:Click here to view Usaki Ijolite Complex, Homa Bay County, Kenya
Data Identifiers
Mindat Occurrence Record ID:1426679
Long-form Identifier:1:3:1426679:1
GUID (UUID V4):0
Nearest other occurrences of Nepheline
3.7km (2.3 miles) ⓘWasaki Peninsula and Ruri Hills Phonolites, Homa Bay County, Kenya
3.7km (2.3 miles) ⓘNyamaji Volcanic Complex, Homa Bay County, Kenya
3.8km (2.4 miles) ⓘNorth Ruri, Ruri complex, Homa Bay County, Kenya
6.0km (3.8 miles) ⓘSouth Ruri, Ruri complex, Homa Bay County, Kenya
7.4km (4.6 miles) ⓘRuri complex, Homa Bay County, Kenya
18.5km (11.5 miles) ⓘHoma Mountain complex, Homa Bay County, Kenya
28.3km (17.6 miles) ⓘKisingiri Volcano, Homa Bay County, Kenya
28.3km (17.6 miles) ⓘRangwa carbonatite complex, Kisingiri Volcano, Homa Bay County, Kenya
88.0km (54.7 miles) ⓘEldoret and Kapsabet Plateau, Kenya
References
Pulfrey, W. (1949) Ijolitic rocks near Homa Bay, western Kenya. Journal of the Geological Society, 105 (1) 425-459 doi:10.1144/gsl.jgs.1949.105.01-04.16
Le Bas, M. J. (1977). Carbonatite-nephelinite volcanism: an African case history. London: Wiley.
LE BAS, M. J., ASPDE, J., WOOLLEY, A. R. (1977) Contrasting Sodic and Potassie Glassy Inclusions in Apatite Crystals from an Ijolite. Journal of Petrology, 18 (2) 247-262 doi:10.1093/petrology/18.2.247
Bas, M. J., Aspden, J. A. (1981) The comparability of carbonatitic fluid inclusions in ijolites with natrocarbonatite lava. Bulletin Volcanologique, 44 (3). 429-438 doi:10.1007/bf02600574
Kalt, A., Hegner, E., Satir, M. (1997) Nd, Sr, and Pb isotopic evidence for diverse lithospheric mantle sources of East African Rift carbonatites. Tectonophysics, 278 (1) 31-45 doi:10.1016/s0040-1951(97)00093-0
 
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