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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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Latitude & Longitude (WGS84):
13° 2' North , 40° 11' East
Latitude & Longitude (decimal):
13.03333,40.18333
GeoHash:
G#:sfkd4ksse
GRN:
N09E28
Type:
Volcano
Köppen climate type:
BSh : Hot semi-arid (steppe) climate
Mindat Locality ID:
406590
Long-form identifier:
mindat:1:2:406590:9
GUID (UUID V4):
0
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

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘAegirine-augite
Formula:(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘAenigmatite
Formula:Na4[Fe2+10Ti2]O4[Si12O36]
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘAlbite
Formula:Na(AlSi3O8)
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘAlbite var. Andesine
Formula:(Na,Ca)[Al(Si,Al)Si2O8]
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘAlbite var. Oligoclase
Formula:(Na,Ca)[Al(Si,Al)Si2O8]
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘ'Alkali pyroxene'
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘ'Biotite'
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘFayalite
Formula:Fe2+2SiO4
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘ'Feldspar Group'
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘ'Feldspar Group var. Perthite'
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘKatophorite
Formula:{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘQuartz
Formula:SiO2
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘSanidine
Formula:K(AlSi3O8)
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
ⓘ'Sodic amphibole'
References:
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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907

Gallery:

List of minerals arranged by Strunz 10th Edition classification

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

List of minerals for each chemical element

HHydrogen
HⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
HⓘKatophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
OOxygen
OⓘAegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
OⓘAenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
OⓘAlbiteNa(AlSi3O8)
OⓘAlbite var.Andesine(Na,Ca)[Al(Si,Al)Si2O8]
OⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
OⓘFayaliteFe22+SiO4
OⓘAlbite var.Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
OⓘQuartzSiO2
OⓘSanidineK(AlSi3O8)
OⓘKatophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
FFluorine
FⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
NaⓘAegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
NaⓘAenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
NaⓘAlbiteNa(AlSi3O8)
NaⓘAlbite var.Andesine(Na,Ca)[Al(Si,Al)Si2O8]
NaⓘAlbite var.Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
NaⓘKatophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
MgMagnesium
MgⓘAegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
MgⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MgⓘKatophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
AlAluminium
AlⓘAegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
AlⓘAlbiteNa(AlSi3O8)
AlⓘAlbite var.Andesine(Na,Ca)[Al(Si,Al)Si2O8]
AlⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlⓘAlbite var.Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
AlⓘSanidineK(AlSi3O8)
AlⓘKatophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
SiSilicon
SiⓘAegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
SiⓘAenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
SiⓘAlbiteNa(AlSi3O8)
SiⓘAlbite var.Andesine(Na,Ca)[Al(Si,Al)Si2O8]
SiⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
SiⓘFayaliteFe22+SiO4
SiⓘAlbite var.Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
SiⓘQuartzSiO2
SiⓘSanidineK(AlSi3O8)
SiⓘKatophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
KPotassium
KⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
KⓘSanidineK(AlSi3O8)
CaCalcium
CaⓘAegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
CaⓘAlbite var.Andesine(Na,Ca)[Al(Si,Al)Si2O8]
CaⓘAlbite var.Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
CaⓘKatophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
TiTitanium
TiⓘAenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
TiⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
FeⓘAegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
FeⓘAenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
FeⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeⓘFayaliteFe22+SiO4

Geochronology

Mineralization age:Pleistocene : 0.12 ± 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
ⓘ Obsidian0.12 ± 0.05 Ma

Other Regions, Features and Areas containing this locality

AfricaContinent
African Plate

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References

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.
Barberi, F.; Santacroce, R.; Varet, J. (1974) Silicic peralkaline volcanic rocks of the Afar Depression (Ethiopia).Bulletin Volcanologique, 38 (2). 755-790doi:10.1007/bf02596907
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.76
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