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Biotite from
Usaki Ijolite Complex, Homa Bay County, Kenya


Locality type:Volcanic Complex
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Usaki Ijolite Complex, Homa Bay County, Kenya
Data Identifiers
Mindat Occurrence Record ID:1426682
Long-form Identifier:1:3:1426682:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
3.8km (2.4 miles) ⓘNorth Ruri, Ruri complex, Homa Bay County, Kenya
4.1km (2.6 miles) ⓘWasaki Peninsula Carbonatites, Homa Bay County, Kenya
5.3km (3.3 miles) ⓘSokolo Point Carbonatite, Wasaki Peninsula Carbonatites, 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) ⓘRangwa carbonatite complex, Kisingiri Volcano, Homa Bay County, Kenya
28.3km (17.6 miles) ⓘKisingiri Volcano, Homa Bay County, Kenya
30.8km (19.2 miles) ⓘLake Simbi Crater, Homa Bay County, Kenya
60.0km (37.3 miles) ⓘMasumbi Au-Cu Prospect, Siaya County, 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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