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Maralal volcanic area, Turkana County, Kenyai
Regional Level Types
Maralal volcanic areaVolcanic Province
Turkana CountyCounty
KenyaCountry

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04002740017271978801025.jpg
Geological Map

Silali Volcano, Turkana County, Kenya
04002740017271978801025.jpg
Geological Map

Silali Volcano, Turkana County, Kenya
08598580017272414377307.jpg
Geological Map

Silali Volcano, Turkana County, Kenya
Latitude & Longitude (WGS84):
1° North , 36° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~48km
GRN:
N02E26
Type:
Volcanic Province
Köppen climate type:
Aw : Tropical savanna, wet
Mindat Locality ID:
406778
Long-form identifier:
mindat:1:2:406778:1
GUID (UUID V4):
0


The volcanic rocks include extensive lava plateau and the overlapping and interdigitating products of numerous central volcanoes.

Lower Miocene to Plio-Pleistocene.

Approx coords range: 1º00' - 2º00'N; 36º00' - 37º00' E.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

20 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Aegirine
Formula: NaFe3+Si2O6
Localities: Reported from at least 6 localities in this region.
ⓘ Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
ⓘ Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
Localities: Reported from at least 7 localities in this region.
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Albite var. Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
References:
McCall, G. J. H., & Hornung, G. (1972). A geochemical study of Silali volcano, Kenya, with special reference to the origin of the intermediate-acid eruptives of the Central Rift Valley. In Developments in Geotectonics (Vol. 7, pp. 97-113). Elsevier. doi.org/10.1016/B978-0-444-41087-0.50016-6
Dunkley, P. N., Smith, M., Allen, D. J., & Darling, W. G. (1993). The geothermal activity and geology of the northern sector of the Kenya Rift Valley. British Geological Survey, Research Report. International Series SC/93/1.
Macdonald, R., Davies, G. R., Upton, B. G. J., Dunkley, P. N., Smith, M., & Leat, P. T. (1995). Petrogenesis of Silali volcano, Gregory Rift, Kenya. Journal of the Geological Society, 152(4), 703-720. doi.org/10.1144/gsjgs.152.4.0703
Smith, M., Dunkley, P. N., Deino, A., Williams, L. A. J., & McCall, G. J. H. (1995). Geochronology, stratigraphy and structural evolution of Silali volcano, Gregory Rift, Kenya. Journal of the Geological Society, 152(2), 297-310. doi.org/10.1144/gsjgs.152.2.0297
ⓘ Albite var. Anorthoclase
Formula: (Na,K)AlSi3O8
ⓘ 'Alkali Feldspar'
Localities: Reported from at least 7 localities in this region.
ⓘ 'Alkali pyroxene'
ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
References:
McCall, G. J. H., & Hornung, G. (1972). A geochemical study of Silali volcano, Kenya, with special reference to the origin of the intermediate-acid eruptives of the Central Rift Valley. In Developments in Geotectonics (Vol. 7, pp. 97-113). Elsevier. doi.org/10.1016/B978-0-444-41087-0.50016-6
Dunkley, P. N., Smith, M., Allen, D. J., & Darling, W. G. (1993). The geothermal activity and geology of the northern sector of the Kenya Rift Valley. British Geological Survey, Research Report. International Series SC/93/1.
Macdonald, R., Davies, G. R., Upton, B. G. J., Dunkley, P. N., Smith, M., & Leat, P. T. (1995). Petrogenesis of Silali volcano, Gregory Rift, Kenya. Journal of the Geological Society, 152(4), 703-720. doi.org/10.1144/gsjgs.152.4.0703
Smith, M., Dunkley, P. N., Deino, A., Williams, L. A. J., & McCall, G. J. H. (1995). Geochronology, stratigraphy and structural evolution of Silali volcano, Gregory Rift, Kenya. Journal of the Geological Society, 152(2), 297-310. doi.org/10.1144/gsjgs.152.2.0297
ⓘ Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Localities: Reported from at least 7 localities in this region.
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Cancrinite
Formula: (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
ⓘ 'Clinopyroxene Subgroup'
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Fayalite
Formula: Fe2+2SiO4
Localities: Reported from at least 6 localities in this region.
ⓘ 'Fayalite-Forsterite Series'
ⓘ 'Feldspar Group'
ⓘ Ferro-richterite
Formula: {Na}{CaNa}{Fe2+5}(Si8O22)(OH)2
References:
Shotton, F. W., Williams, R. E. G., & Johnson, A. (1974). Birmingham University radiocarbon dates VIII. Radiocarbon, 16(3), 285-303. doi.org/10.1017/S0033822200059610
Weaver, S. D. (1977). The Quaternary caldera volcano Emuruangogolak, Kenya Rift, and the petrology of a bimodal ferrobasalt-pantelleritic trachyte association. Bulletin Volcanologique, 40(4), 209-230. doi.org/10.1007/BF02597564
Norry, M. J., Truckle, P. H., Lippard, S. J., Hawkesworth, C. J., Weaver, S. D., & Marriner, G. F. (1980). Isotopic and trace element evidence from lavas, bearing on mantle heterogeneity beneath Kenya. Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 297(1431), 259-271. doi.org/10.1098/rsta.1980.0214
Williams, L. A. J., Macdonald, R., & Chapman, G. R. (1984). Late Quaternary caldera volcanoes of the Kenya Rift valley. Journal of Geophysical Research: Solid Earth, 89(B10), 8553-8570. doi.org/10.1029/JB089iB10p08553
Dunkley, P. N., Smith, M., Allen, D. J., & Darling, W. G. (1993). The geothermal activity and geology of the northern sector of the Kenya Rift Valley. British Geological Survey, Research Report. International Series SC/93/1.
Black, S., Macdonald, R., Barreiro, B. A., Dunkley, P. N., & Smith, M. (1998). Open system alkaline magmatism in northern Kenya: evidence from U-series disequilibria and radiogenic isotopes. Contributions to Mineralogy and Petrology, 131(4), 364-378. doi.org/10.1007/s004100050398
ⓘ Hedenbergite
Formula: CaFe2+Si2O6
ⓘ Kaersutite
Formula: NaCa2(Mg3AlTi4+)(Si6Al2)O22O2
ⓘ Katophorite
Formula: {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Magnetite var. Titanium-bearing Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
References:
McCall, G. J. H., & Hornung, G. (1972). A geochemical study of Silali volcano, Kenya, with special reference to the origin of the intermediate-acid eruptives of the Central Rift Valley. In Developments in Geotectonics (Vol. 7, pp. 97-113). Elsevier. doi.org/10.1016/B978-0-444-41087-0.50016-6
Dunkley, P. N., Smith, M., Allen, D. J., & Darling, W. G. (1993). The geothermal activity and geology of the northern sector of the Kenya Rift Valley. British Geological Survey, Research Report. International Series SC/93/1.
Macdonald, R., Davies, G. R., Upton, B. G. J., Dunkley, P. N., Smith, M., & Leat, P. T. (1995). Petrogenesis of Silali volcano, Gregory Rift, Kenya. Journal of the Geological Society, 152(4), 703-720. doi.org/10.1144/gsjgs.152.4.0703
Smith, M., Dunkley, P. N., Deino, A., Williams, L. A. J., & McCall, G. J. H. (1995). Geochronology, stratigraphy and structural evolution of Silali volcano, Gregory Rift, Kenya. Journal of the Geological Society, 152(2), 297-310. doi.org/10.1144/gsjgs.152.2.0297
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 6 localities in this region.
ⓘ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘ Sanidine
Formula: K(AlSi3O8)
ⓘ Sodalite
Formula: Na4(Si3Al3)O12Cl
ⓘ 'Sodic amphibole'

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘvar. Titanium-bearing Magnetite4.BB.05Fe2+(Fe3+,Ti)2O4
ⓘQuartz4.DA.05SiO2
Group 9 - Silicates
ⓘFayalite9.AC.05Fe2+2SiO4
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘHedenbergite9.DA.15CaFe2+Si2O6
ⓘAegirine-augite9.DA.20(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘKaersutite9.DE.15NaCa2(Mg3AlTi4+)(Si6Al2)O22O2
ⓘFerro-richterite9.DE.20{Na}{CaNa}{Fe2+5}(Si8O22)(OH)2
ⓘKatophorite9.DE.20{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
ⓘArfvedsonite9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
ⓘRiebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘAenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘSanidine9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘvar. Andesine9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
ⓘvar. Anorthoclase9.FA.35(Na,K)AlSi3O8
ⓘCancrinite9.FB.05(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
ⓘSodalite9.FB.10Na4(Si3Al3)O12Cl
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
Unclassified
ⓘ'Alkali Feldspar'-
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Feldspar Group'-
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)
ⓘ'Sodic amphibole'-
ⓘ'Alkali pyroxene'-

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Hⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Hⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Hⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Oⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Oⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Oⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Oⓘ DiopsideCaMgSi2O6
Oⓘ FayaliteFe22+SiO4
Oⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Oⓘ HedenbergiteCaFe2+Si2O6
Oⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ QuartzSiO2
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ SanidineK(AlSi3O8)
Oⓘ SodaliteNa4(Si3Al3)O12Cl
Oⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Oⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Oⓘ Fayalite-Forsterite Series
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Pyroxene GroupADSi2O6
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Naⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Naⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Naⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Naⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Naⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Naⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Naⓘ NephelineNa3K(Al4Si4O16)
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Naⓘ SodaliteNa4(Si3Al3)O12Cl
Naⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Mgⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Alⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Alⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ SanidineK(AlSi3O8)
Alⓘ SodaliteNa4(Si3Al3)O12Cl
Alⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Siⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Siⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Siⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Siⓘ DiopsideCaMgSi2O6
Siⓘ FayaliteFe22+SiO4
Siⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Siⓘ HedenbergiteCaFe2+Si2O6
Siⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ QuartzSiO2
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ SanidineK(AlSi3O8)
Siⓘ SodaliteNa4(Si3Al3)O12Cl
Siⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Siⓘ Fayalite-Forsterite Series
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Pyroxene GroupADSi2O6
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clⓘ SodaliteNa4(Si3Al3)O12Cl
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ NephelineNa3K(Al4Si4O16)
Kⓘ SanidineK(AlSi3O8)
CaCalcium
Caⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Caⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Caⓘ DiopsideCaMgSi2O6
Caⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Caⓘ HedenbergiteCaFe2+Si2O6
Caⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Caⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Tiⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Feⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Feⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ FayaliteFe22+SiO4
Feⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Feⓘ HedenbergiteCaFe2+Si2O6
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Feⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Feⓘ Fayalite-Forsterite Series

Geochronology

Mineralization age: Cenozoic : 15.4 Ma to 0.014 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Cenozoic
  Quaternary
   Pleistocene
ⓘ Trachyte (youngest age)0.014 MaEmuruangogolak Volcano, Samburu County, Kenya
ⓘ Basalt0.5 MaNamarunu Volcano, Turkana County, Kenya
  Neogene
   Pliocene
ⓘ Tuff4.8 ± 0.2 MaKanatim Volcano, Turkana County, Kenya
   Miocene
ⓘ Trachyte (oldest age)15.4 MaKailimerlim Volcano, Turkana County, Kenya

Localities in this Region

Kenya
Kenya

Other Regions, Features and Areas that Intersect

AfricaContinent
African Plate
Somali PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Shackleton, R. M. (1946). Geology of the country between Nanyuki and Maralal. Rep. geol. Surv. Kenya, 11(1951), 345-392.
Mason, P., & Gibson, A. B. (1957). The Geology of the Kalossia—Tiati area Report 41 Geol. Survey Kenya, 41.
Baker, B. H. (1963). Geology of the Baragoi Area. Report, Geological Survey of Kenya, 53.
Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.
Dunkley, P. N., Smith, M., Allen, D. J., & Darling, W. G. (1993). The geothermal activity and geology of the northern sector of the Kenya Rift Valley.
Woolley, A. R. (2001) Alkaline Rocks and Carbonatites of the World, Part 3: Africa - Alkaline Rocks and Carbonatites of the World. The Geological Society of London.p.107
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