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Sabarei and Allia Bay Areas, Marsabit County, Kenyai
Regional Level Types
Sabarei and Allia Bay AreasVolcanic Field
Marsabit CountyCounty
KenyaCountry

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Latitude & Longitude (WGS84):
4° North , 37° East
Latitude & Longitude (decimal):
4.00000,37.00000
GeoHash:
G#: sbdqcbntd
GRN:
N03E26
Type:
Volcanic Field
Age:
27 to 6 Ma
Geologic Time:
Cenozoic
Reference for age:
Key & Watkins, 1988; Wilkinson, 1988; McDougall & Watkins, 1988.
Köppen climate type:
BSh : Hot semi-arid (steppe) climate
Mindat Locality ID:
406770
Long-form identifier:
mindat:1:2:406770:5
GUID (UUID V4):
0


The large area bounded on the west by Lake Turkana, the north by the Ethiopian border and the south by the 3ºN line of latitudes is described under the names of the Sabarei and Allia Bay areas (Key & Watkins, 1988; Wilkinson, 1988).

Approx coords range: 3º00' - 4º25'N; 36º00' - 37º42' E.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


9 valid minerals.

Rock Types Recorded

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
ⓘ Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
ⓘ Albite
Formula: Na(AlSi3O8)
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
ⓘ Albite var. Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
ⓘ Enstatite
Formula: Mg2Si2O6
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
ⓘ Orthoclase
Formula: K(AlSi3O8)
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
ⓘ Quartz
Formula: SiO2
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
ⓘ Sanidine
Formula: K(AlSi3O8)
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
ⓘ Sodalite
Formula: Na4(Si3Al3)O12Cl
References:
Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 9 - Silicates
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘAegirine-augite9.DA.20(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
ⓘAenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
ⓘOrthoclase9.FA.30K(AlSi3O8)
ⓘSanidine9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘvar. Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
ⓘSodalite9.FB.10Na4(Si3Al3)O12Cl
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
Unclassified
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Pyroxene Group'-ADSi2O6

List of minerals for each chemical element

HHydrogen
Hⓘ AnalcimeNa(AlSi2O6) · H2O
OOxygen
Oⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Oⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ EnstatiteMg2Si2O6
Oⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Oⓘ OrthoclaseK(AlSi3O8)
Oⓘ QuartzSiO2
Oⓘ SanidineK(AlSi3O8)
Oⓘ SodaliteNa4(Si3Al3)O12Cl
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Pyroxene GroupADSi2O6
NaSodium
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. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Naⓘ SodaliteNa4(Si3Al3)O12Cl
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Mgⓘ EnstatiteMg2Si2O6
AlAluminium
Alⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Alⓘ OrthoclaseK(AlSi3O8)
Alⓘ SanidineK(AlSi3O8)
Alⓘ SodaliteNa4(Si3Al3)O12Cl
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Siⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ EnstatiteMg2Si2O6
Siⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Siⓘ OrthoclaseK(AlSi3O8)
Siⓘ QuartzSiO2
Siⓘ SanidineK(AlSi3O8)
Siⓘ SodaliteNa4(Si3Al3)O12Cl
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Pyroxene GroupADSi2O6
ClChlorine
Clⓘ SodaliteNa4(Si3Al3)O12Cl
KPotassium
Kⓘ OrthoclaseK(AlSi3O8)
Kⓘ SanidineK(AlSi3O8)
CaCalcium
Caⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Caⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
FeIron
Feⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Feⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]

Other Regions, Features and Areas containing this locality

AfricaContinent
African Plate
Kenya
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

Ministry of Energy and Regional Development 1987. Geological map of Kenya. 1:1000000. Ministry of Energy and Regional Development, Republic of Kenya.
Wilkinson, A.F. 1988. Geology of the Allia Bay Area. Report, Geological Survey of Kenya, 109.
Fitch, F. J., Watkins, R. T., & MILLER, J. A. (1975). Age of a new carbonatite locality in northern Kenya. Nature, 254(5501), 581-583. https://link.springer.com/content/pdf/10.1038/254581a0.pdf
Key, R. M., & Watkins, R. T. (1988). Geology of the Sabarei area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 111.
McDougall, I., & Watkins, R. T. (1988). Potassium–argon ages of volcanic rocks from northeast of Lake Turkana, northern Kenya. Geological Magazine, 125(1), 15-23. doi.org/10.1017/S001675680000933X
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.102
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