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Mount Suswa (Suswa Volcano), Kajiado County, Kenyai
Regional Level Types
Mount Suswa (Suswa Volcano)Volcano
Kajiado CountyCounty
KenyaCountry

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Latitude & Longitude (WGS84):
1° 10' 22'' South , 36° 20' 51'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Limuru6,317 (2018)33.4km
Kikuyu3,953 (2018)36.0km
Kijabe4,679 (2018)36.5km
Ngong9,519 (2018)41.0km


In the center of the Rift Valley, approximately 90 kms North of Nairobi.

A Halocene shield volcano that is 2,356 meters (7,730 feet) high. It is the southernmost caldera of the Kenya rift system. Several eruptions have created a variety of interesting features. The latest eruptions may be as recent as the early 1900s. The outer crater is approximately 10km in diameter and is breached on its south and east sides where lava flows poured down the slopes. Many of the less viscous pahoehoe flows are honeycombed with caves.

An inner crater is 4-5 kms in diameter and contains a raft-like structure (tilted island block of caldera floor lava flows) surrounded by a deep "moat".

Regions containing this locality

Somali Plate (Somalia Plate)Tectonic Plate
Rift Valley Province, KenyaProvince

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

18 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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:

Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
Reference: Nash, W.P., Carmichael, I.S.E., Hohnson, R.W. (1969) The Mineralogy and Petrology of Mount Suswa, Kenya. Journal of Petrology, 10:3, 409-439.
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Nash, W.P., Carmichael, I.S.E., Hohnson, R.W. (1969) The Mineralogy and Petrology of Mount Suswa, Kenya. Journal of Petrology, 10:3, 409-439.
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Nash, W.P., Carmichael, I.S.E., Hohnson, R.W. (1969) The Mineralogy and Petrology of Mount Suswa, Kenya. Journal of Petrology, 10:3, 409-439. Rocky Mountain (53rd) and South-Central (35th) Sections, GSA, Joint Annual Meeting (April 29–May 2, 2001) Session No. 7-Booth# 38.
Brushite
Formula: Ca(HPO4) · 2H2O
Reference: Forti, P., E. Galli & A. Rossi (2004):"Minerogenesis of volcanic caves of Kenya" , Int. J. Speleol. 32, 3-18
Clinoferrosilite
Formula: Fe2+SiO3
Reference: Rocky Mountain (53rd) and South-Central (35th) Sections, GSA, Joint Annual Meeting (April 29–May 2, 2001) Session No. 7-Booth# 38.
'Fayalite-Forsterite Series'
Reference: Nash, W.P., Carmichael, I.S.E., Hohnson, R.W. (1969) The Mineralogy and Petrology of Mount Suswa, Kenya. Journal of Petrology, 10:3, 409-439.
'Feldspar Group'
Reference: Nash, W.P., Carmichael, I.S.E., Hohnson, R.W. (1969) The Mineralogy and Petrology of Mount Suswa, Kenya. Journal of Petrology, 10:3, 409-439.
Ferrosilite
Formula: FeSiO3
Reference: Rocky Mountain (53rd) and South-Central (35th) Sections, GSA, Joint Annual Meeting (April 29–May 2, 2001) Session No. 7-Booth# 38.
'Glass'
Reference: Nash, W.P., Carmichael, I.S.E., Hohnson, R.W. (1969) The Mineralogy and Petrology of Mount Suswa, Kenya. Journal of Petrology, 10:3, 409-439.
Gypsum
Formula: CaSO4 · 2H2O
Reference: Forti, P., E. Galli & A. Rossi (2004):"Minerogenesis of volcanic caves of Kenya" , Int. J. Speleol. 32, 3-18
Hannayite
Formula: (NH4)2Mg3H4(PO4)4 · 8H2O
Reference: Forti, P., E. Galli & A. Rossi (2004):"Minerogenesis of volcanic caves of Kenya" , Int. J. Speleol. 32, 3-18
Kogarkoite
Formula: Na3(SO4)F
Reference: Forti, P. et al. (2004), "Minerogenesis of volcanic caves of Kenya". Int. J. Speleol. 32, 3-18
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Nash, W.P., Carmichael, I.S.E., Hohnson, R.W. (1969) The Mineralogy and Petrology of Mount Suswa, Kenya. Journal of Petrology, 10:3, 409-439.
Magnetite var: Titaniferous Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
Reference: Nash, W.P., Carmichael, I.S.E., Hohnson, R.W. (1969) The Mineralogy and Petrology of Mount Suswa, Kenya. Journal of Petrology, 10:3, 409-439.
Nepheline
Formula: Na3K(Al4Si4O16)
Reference: Nash, W.P., Carmichael, I.S.E., Hohnson, R.W. (1969) The Mineralogy and Petrology of Mount Suswa, Kenya. Journal of Petrology, 10:3, 409-439.
Newberyite
Formula: Mg(HPO4) · 3H2O
Reference: Forti, P., E. Galli & A. Rossi (2004):"Minerogenesis of volcanic caves of Kenya" , Int. J. Speleol. 32, 3-18
Opal
Formula: SiO2 · nH2O
Reference: Forti, P. et al. (2004), "Minerogenesis of volcanic caves of Kenya". Int. J. Speleol. 32, 3-18
Orthoclase
Formula: K(AlSi3O8)
Reference: Rocky Mountain (53rd) and South-Central (35th) Sections, GSA, Joint Annual Meeting (April 29–May 2, 2001) Session No. 7-Booth# 38.
Sanidine
Formula: K(AlSi3O8)
Reference: Forti, P., E. Galli & A. Rossi (2004):"Minerogenesis of volcanic caves of Kenya" , Int. J. Speleol. 32, 3-18
Sodalite
Formula: Na8(Al6Si6O24)Cl2
Reference: Nash, W.P., Carmichael, I.S.E., Hohnson, R.W. (1969) The Mineralogy and Petrology of Mount Suswa, Kenya. Journal of Petrology, 10:3, 409-439.
Taranakite
Formula: (K,NH4)Al3(PO4)3(OH) · 9H2O
Reference: Forti, P., E. Galli & A. Rossi (2004):"Minerogenesis of volcanic caves of Kenya" , Int. J. Speleol. 32, 3-18
Thermonatrite
Formula: Na2CO3 · H2O
Reference: Forti, P. et al. (2004), "Minerogenesis of volcanic caves of Kenya". Int. J. Speleol. 32, 3-18
Trona
Formula: Na3H(CO3)2 · 2H2O
Reference: Forti, P. et al. (2004), "Minerogenesis of volcanic caves of Kenya". Int. J. Speleol. 32, 3-18

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
var: Titaniferous Magnetite4.BB.05Fe2+(Fe3+,Ti)2O4
Opal4.DA.10SiO2 · nH2O
Group 5 - Nitrates and Carbonates
Thermonatrite5.CB.05Na2CO3 · H2O
Trona5.CB.15Na3H(CO3)2 · 2H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Gypsum7.CD.40CaSO4 · 2H2O
Kogarkoite7.BD.15Na3(SO4)F
Group 8 - Phosphates, Arsenates and Vanadates
Brushite8.CJ.50Ca(HPO4) · 2H2O
Hannayite8.CH.35(NH4)2Mg3H4(PO4)4 · 8H2O
Newberyite8.CE.10Mg(HPO4) · 3H2O
Taranakite8.CH.25(K,NH4)Al3(PO4)3(OH) · 9H2O
Group 9 - Silicates
Aenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Clinoferrosilite9.DA.10Fe2+SiO3
Ferrosilite9.DA.05FeSiO3
Nepheline9.FA.05Na3K(Al4Si4O16)
Orthoclase9.FA.30K(AlSi3O8)
Sanidine9.FA.30K(AlSi3O8)
Sodalite9.FB.10Na8(Al6Si6O24)Cl2
Unclassified Minerals, Rocks, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'Glass'-

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 13 - ACID CARBONATES
Miscellaneous
Trona13.1.4.1Na3H(CO3)2 · 2H2O
Group 15 - HYDRATED NORMAL CARBONATES
A(XO3)·xH2O
Thermonatrite15.1.1.1Na2CO3 · H2O
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Kogarkoite30.1.6.1Na3(SO4)F
Group 39 - HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
A[HXO4]·xH2O
Brushite39.1.1.1Ca(HPO4) · 2H2O
Newberyite39.1.6.1Mg(HPO4) · 3H2O
Miscellaneous
Hannayite39.3.5.1(NH4)2Mg3H4(PO4)4 · 8H2O
Taranakite39.3.6.1(K,NH4)Al3(PO4)3(OH) · 9H2O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Clinoferrosilite65.1.1.2Fe2+SiO3
Ferrosilite65.1.2.2FeSiO3
Group 69 - INOSILICATES Chains with Side Branches or Loops
Chains with Side Branches or Loops with P>2
Aenigmatite69.2.1a.1Na4[Fe2+10Ti2]O4[Si12O36]
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Orthoclase76.1.1.1K(AlSi3O8)
Sanidine76.1.1.2K(AlSi3O8)
Al-Si Framework Feldspathoids and related species
Nepheline76.2.1.2Na3K(Al4Si4O16)
Sodalite76.2.3.1Na8(Al6Si6O24)Cl2
Unclassified Minerals, Mixtures, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'Glass'-
Magnetite
var: Titaniferous Magnetite
-Fe2+(Fe3+,Ti)2O4

List of minerals for each chemical element

HHydrogen
H GypsumCaSO4 · 2H2O
H Hannayite(NH4)2Mg3H4(PO4)4 · 8H2O
H NewberyiteMg(HPO4) · 3H2O
H BrushiteCa(HPO4) · 2H2O
H Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
H OpalSiO2 · nH2O
H ThermonatriteNa2CO3 · H2O
H TronaNa3H(CO3)2 · 2H2O
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
CCarbon
C ThermonatriteNa2CO3 · H2O
C TronaNa3H(CO3)2 · 2H2O
NNitrogen
N Hannayite(NH4)2Mg3H4(PO4)4 · 8H2O
OOxygen
O OrthoclaseK(AlSi3O8)
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O ClinoferrosiliteFe2+SiO3
O FerrosiliteFeSiO3
O GypsumCaSO4 · 2H2O
O Hannayite(NH4)2Mg3H4(PO4)4 · 8H2O
O NewberyiteMg(HPO4) · 3H2O
O BrushiteCa(HPO4) · 2H2O
O Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
O SanidineK(AlSi3O8)
O OpalSiO2 · nH2O
O ThermonatriteNa2CO3 · H2O
O TronaNa3H(CO3)2 · 2H2O
O KogarkoiteNa3(SO4)F
O Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
O SodaliteNa8(Al6Si6O24)Cl2
O NephelineNa3K(Al4Si4O16)
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
O MagnetiteFe2+Fe23+O4
FFluorine
F KogarkoiteNa3(SO4)F
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
NaSodium
Na ThermonatriteNa2CO3 · H2O
Na TronaNa3H(CO3)2 · 2H2O
Na KogarkoiteNa3(SO4)F
Na SodaliteNa8(Al6Si6O24)Cl2
Na NephelineNa3K(Al4Si4O16)
Na AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg Hannayite(NH4)2Mg3H4(PO4)4 · 8H2O
Mg NewberyiteMg(HPO4) · 3H2O
AlAluminium
Al OrthoclaseK(AlSi3O8)
Al Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
Al SanidineK(AlSi3O8)
Al SodaliteNa8(Al6Si6O24)Cl2
Al NephelineNa3K(Al4Si4O16)
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
SiSilicon
Si OrthoclaseK(AlSi3O8)
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si ClinoferrosiliteFe2+SiO3
Si FerrosiliteFeSiO3
Si SanidineK(AlSi3O8)
Si OpalSiO2 · nH2O
Si SodaliteNa8(Al6Si6O24)Cl2
Si NephelineNa3K(Al4Si4O16)
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
PPhosphorus
P Hannayite(NH4)2Mg3H4(PO4)4 · 8H2O
P NewberyiteMg(HPO4) · 3H2O
P BrushiteCa(HPO4) · 2H2O
P Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
SSulfur
S GypsumCaSO4 · 2H2O
S KogarkoiteNa3(SO4)F
ClChlorine
Cl SodaliteNa8(Al6Si6O24)Cl2
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
K OrthoclaseK(AlSi3O8)
K Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2O
K SanidineK(AlSi3O8)
K NephelineNa3K(Al4Si4O16)
CaCalcium
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca GypsumCaSO4 · 2H2O
Ca BrushiteCa(HPO4) · 2H2O
TiTitanium
Ti Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
FeIron
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe ClinoferrosiliteFe2+SiO3
Fe FerrosiliteFeSiO3
Fe Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
Fe AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Fe MagnetiteFe2+Fe23+O4

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Quaternary
0 - 2.588 Ma



ID: 3306518

Age: Pleistocene (0 - 2.588 Ma)

Lithology: Volcanic

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Neogene
2.588 - 23.03 Ma



ID: 3186107
Cenozoic volcanic rocks

Age: Neogene (2.588 - 23.03 Ma)

Lithology: Intermediate volcanic rocks; phonolite

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Nash, W.P., Carmichael, I.S.E., Hohnson, R.W. (1969) The Mineralogy and Petrology of Mount Suswa, Kenya. Journal of Petrology, 10:3, 409-439.

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