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Biotite from
Tinderet volcano, Nandi County, Kenya


Locality type:Volcano
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Age information
Maximum recorded age:19.9 Ma
Minimum recorded age:5.5 Ma
Sample ages:
Recorded ageGeologic TimeSampleDating method
119.9 to 5.5 MaMiocene - K-Ar whole rock
Sample references:
1 -
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Tinderet volcano, Nandi County, Kenya
Data Identifiers
Mindat Occurrence Record ID:1426777
Long-form Identifier:1:3:1426777:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
23.2km (14.4 miles) ⓘBuru carbonatite, Kericho County, Kenya
37.8km (23.5 miles) ⓘEldoret and Kapsabet Plateau, Kenya
46.3km (28.7 miles) ⓘLondiani Volcano, Baringo County, Kenya
48.7km (30.2 miles) ⓘMolo Volcanic Area, Nakuru County, Kenya
84.7km (52.6 miles) ⓘLake Simbi Crater, Homa Bay County, Kenya
89.0km (55.3 miles) ⓘMau Volcanic Area, Narok County, Kenya
99.1km (61.6 miles) ⓘHoma Mountain complex, Homa Bay County, Kenya
References
Binge, F. W. (1962). Geology of the Kericho Area. Report, Geological Survey of Kenya, 50.
Le Bas, M. J., & Dixon, J. A. (1965). A new carbonatite in the Legetet hills, Kenya. Nature, 207(4992), 68-68. https://link.springer.com/content/pdf/10.1038/207068a0.pdf
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
King, B. C., Le Bas, M. J., & Sutherland, D. S. (1972). The history of the alkaline volcanoes and intrusive complexes of eastern Uganda and western Kenya. Journal of the Geological Society, 128(2), 173-205. doi.org/10.1144/gsjgs.128.2.0173
Deans, T., & Roberts, B. (1984). Carbonatite tuffs and lava clasts of the Tinderet foothills, western Kenya: a study of calcified natrocarbonatites. Journal of the Geological Society, 141(3), 563-580. doi.org/10.1144/gsjgs.141.3.0563
 
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