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Ma'Alalta Volcano, Kilbet Rasu, Afar Region, Ethiopiai
Regional Level Types
Ma'Alalta VolcanoVolcano
Kilbet RasuZone
Afar RegionRegion
EthiopiaCountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
13° 2' North , 40° 11' East
Latitude & Longitude (decimal):
13.03333,40.18333
GeoHash:
G#: sfkd4ksse
GRN:
N09E28
Type:
Volcano
KΓΆppen climate type:
BSh : Hot semi-arid (steppe) climate
Mindat Locality ID:
406590
Long-form identifier:
mindat:1:2:406590:9
GUID (UUID V4):
55a3988b-c481-4cfe-bedb-82067c28f84f
Other/historical names associated with this locality:
Ma Alalta


The earliest phase in the volcano consists of basaltic lava flows that emanated from fissures. These were followed by emplacement of 3 ignimbrite units the first two of which, both 4 m thick, are overlain by pumice horizons.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 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:

β“˜ Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ Albite
Formula: Na(AlSi3O8)
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ Albite var. Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ Albite var. Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ 'Alkali pyroxene'
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ Fayalite
Formula: Fe2+2SiO4
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ 'Feldspar Group'
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ 'Feldspar Group var. Perthite'
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ Katophorite
Formula: {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ Quartz
Formula: SiO2
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ Sanidine
Formula: K(AlSi3O8)
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
β“˜ 'Sodic amphibole'
References:
Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
β“˜Quartz4.DA.05SiO2
Group 9 - Silicates
β“˜Fayalite9.AC.05Fe2+2SiO4
β“˜Aegirine-augite9.DA.20(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
β“˜Katophorite9.DE.20{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
β“˜Aenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
β“˜Sanidine9.FA.30K(AlSi3O8)
β“˜Albite9.FA.35Na(AlSi3O8)
β“˜var. Andesine9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
β“˜var. Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Unclassified
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Feldspar Group'-
β“˜'var. Perthite'-
β“˜'Sodic amphibole'-
β“˜'Alkali pyroxene'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
OOxygen
Oβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Oβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ FayaliteFe22+SiO4
Oβ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Oβ“˜ QuartzSiO2
Oβ“˜ SanidineK(AlSi3O8)
Oβ“˜ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Naβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Naβ“˜ AlbiteNa(AlSi3O8)
Naβ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Naβ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Naβ“˜ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
MgMagnesium
Mgβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgβ“˜ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
AlAluminium
Alβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Alβ“˜ SanidineK(AlSi3O8)
Alβ“˜ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
SiSilicon
Siβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Siβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ FayaliteFe22+SiO4
Siβ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Siβ“˜ QuartzSiO2
Siβ“˜ SanidineK(AlSi3O8)
Siβ“˜ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ SanidineK(AlSi3O8)
CaCalcium
Caβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Caβ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Caβ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Caβ“˜ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
TiTitanium
Tiβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Feβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ FayaliteFe22+SiO4

Geochronology

Mineralization age: Pleistocene : 0.12 Β± 0.05 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
β“˜ Obsidian0.12 Β± 0.05 Ma

Other Regions, Features and Areas containing this locality

Africa

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References

Barberi, F., Santacroce, R. & Varet, J. 1975. Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia). Bulletin Volcanologique, 38, 755-790.
Tazieff, H., Marinelli, G., Barberi, F. & Varet, J. 1970. Geologie de l'Afar Septentrional. Premiere expedition du CNRS-France et du CNR-Italie (decembre 67-fevrier 68). Bulletin Volcanologique, 33, 1039-1072.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., & Varet, J. (1970). Relations between tectonics and magmatology in the northern Danakil Depression (Ethiopia). Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 293-311.
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
Barberi, F., Chedeville, E., Faure, H., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1973). Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15, 443-489.
Woolley, A. R. (2001). Alkaline rocks and carbonatites of the world. Part 3: Africa. Geological Society. Natural History Museum, London, p. 76.
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