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). 755-790 doi:10.1007/bf02596907

Barberi, F., Ferrara, G., Santacroce, R., Treuil, M., & Varet, J. (1975). A transitional basalt-pantellerite sequence of fractional crystallization, the Boina Centre (Afar Rift, Ethiopia). Journal of Petrology, 16(1), 22-56. doi.org/10.1093/petrology/16.1.22

ⓘ Albite

Formula: Na(AlSi₃O₈)

Localities:

Boina Volcanic Region, Fanti Rasu, Afar Region, Ethiopia
Dabbayra Volcano, Fanti Rasu, Afar Region, Ethiopia

ⓘ Albite var. Andesine

Formula: (Na,Ca)[Al(Si,Al)Si₂O₈]

Localities:

Boina Volcanic Region, Fanti Rasu, Afar Region, Ethiopia
Dabbayra Volcano, Fanti Rasu, Afar Region, Ethiopia

ⓘ 'Alkali Feldspar'

Locality: Boina Volcanic Region, Fanti Rasu, Afar Region, Ethiopia

References:

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

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂

Locality: Limmo Granite Intruson, Fanti Rasu, Afar Region, Ethiopia

References:

Black, R., Morton, W. H., Rex, D. C., & Shackleton, R. M. (1972). Sur la découverte en Afar (Ethiopie) d'un granite hyperalcalin miocène: le massif de Limmo. CR Acad. Sc. Paris, 274, 1453-1456.

ⓘ 'Clinopyroxene Subgroup'

Locality: Boina Volcanic Region, Fanti Rasu, Afar Region, Ethiopia

References:

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

ⓘ Fayalite

Formula: Fe²⁺₂SiO₄

Localities:

Boina Volcanic Region, Fanti Rasu, Afar Region, Ethiopia
Limmo Granite Intruson, Fanti Rasu, Afar Region, Ethiopia

ⓘ 'Fayalite-Forsterite Series'

Locality: Boina Volcanic Region, Fanti Rasu, Afar Region, Ethiopia

References:

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

ⓘ 'Glass'

Locality: Boina Volcanic Region, Fanti Rasu, Afar Region, Ethiopia

References:

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

ⓘ Hastingsite

Formula: NaCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂

Locality: Limmo Granite Intruson, Fanti Rasu, Afar Region, Ethiopia

References:

Black, R., Morton, W. H., Rex, D. C., & Shackleton, R. M. (1972). Sur la découverte en Afar (Ethiopie) d'un granite hyperalcalin miocène: le massif de Limmo. CR Acad. Sc. Paris, 274, 1453-1456.

ⓘ Hedenbergite

Formula: CaFe²⁺Si₂O₆

Locality: Limmo Granite Intruson, Fanti Rasu, Afar Region, Ethiopia

References:

Black, R., Morton, W. H., Rex, D. C., & Shackleton, R. M. (1972). Sur la découverte en Afar (Ethiopie) d'un granite hyperalcalin miocène: le massif de Limmo. CR Acad. Sc. Paris, 274, 1453-1456.

ⓘ 'Orthopyroxene Subgroup'

Locality: Boina Volcanic Region, Fanti Rasu, Afar Region, Ethiopia

References:

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

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

Locality: Boina Volcanic Region, Fanti Rasu, Afar Region, Ethiopia

References:

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

ⓘ Quartz

Formula: SiO₂

Locality: Limmo Granite Intruson, Fanti Rasu, Afar Region, Ethiopia

References:

Black, R., Morton, W. H., Rex, D. C., & Shackleton, R. M. (1972). Sur la découverte en Afar (Ethiopie) d'un granite hyperalcalin miocène: le massif de Limmo. CR Acad. Sc. Paris, 274, 1453-1456.

ⓘ 'Sodic amphibole'

Locality: Limmo Granite Intruson, Fanti Rasu, Afar Region, Ethiopia

References:

Black, R., Morton, W. H., Rex, D. C., & Shackleton, R. M. (1972). Sur la découverte en Afar (Ethiopie) d'un granite hyperalcalin miocène: le massif de Limmo. CR Acad. Sc. Paris, 274, 1453-1456.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
Group 9 - Silicates
ⓘ	Fayalite	9.AC.05	Fe²⁺₂SiO₄
ⓘ	Hedenbergite	9.DA.15	CaFe²⁺Si₂O₆
ⓘ	Hastingsite	9.DE.15	NaCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
ⓘ	Aenigmatite	9.DH.40	Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆]
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	var. Andesine	9.FA.35	(Na,Ca)[Al(Si,Al)Si₂O₈]
Unclassified
ⓘ	'Alkali Feldspar'	-
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Clinopyroxene Subgroup'	-
ⓘ	'Fayalite-Forsterite Series'	-
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'Orthopyroxene Subgroup'	-
ⓘ	'Glass'	-
ⓘ	'Sodic amphibole'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
O	Oxygen
O	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Albite var. Andesine	(Na,Ca)[Al(Si,Al)Si₂O₈]
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Fayalite	Fe₂²⁺SiO₄
O	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
O	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
O	ⓘ Quartz	SiO₂
O	ⓘ Fayalite-Forsterite Series
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Na	Sodium
Na	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Albite var. Andesine	(Na,Ca)[Al(Si,Al)Si₂O₈]
Na	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mg	ⓘ Fayalite-Forsterite Series
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Albite var. Andesine	(Na,Ca)[Al(Si,Al)Si₂O₈]
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Albite var. Andesine	(Na,Ca)[Al(Si,Al)Si₂O₈]
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Fayalite	Fe₂²⁺SiO₄
Si	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
Si	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
Si	ⓘ Quartz	SiO₂
Si	ⓘ Fayalite-Forsterite Series
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ca	Calcium
Ca	ⓘ Albite var. Andesine	(Na,Ca)[Al(Si,Al)Si₂O₈]
Ca	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
Ca	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ti	Titanium
Ti	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	Iron
Fe	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Fayalite	Fe₂²⁺SiO₄
Fe	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
Fe	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
Fe	ⓘ Fayalite-Forsterite Series

Geochronology

Mineralization age: Quaternary : 0.044 ± 0.0105 Ma to 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 Time

Rocks, Minerals and Events

ⓘ Obsidian (youngest age)

Boina Volcanic Region, Fanti Rasu, Afar Region, Ethiopia

Pleistocene

ⓘ Obsidian (oldest age)

0.044 ± 0.0105 Ma

Boina Volcanic Region, Fanti Rasu, Afar Region, Ethiopia

Fossils

There are 1 fossil locality from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences

Youngest Fossil Listed

157 Ma (Jurassic)

Oldest Fossil Listed

166 Ma (Middle Jurassic)

Stratigraphic Units

Unit	No. Occurrences	Age
Antalo Limestone	9	163.5 - 145 Ma (Jurassic)

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
Lopha genus	Animalia : Mollusca : Bivalvia : Ostreida : Ostreidae : *Lopha*	166.1 - 157.3 Ma Jurassic
Rhynchonellida order	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida	166.1 - 157.3 Ma Jurassic
Somalirhynchia genus	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Tetrarhynchiidae : *Somalirhynchia*	166.1 - 157.3 Ma Jurassic
Terebratulida order	Animalia : Brachiopoda : Rhynchonellata : Terebratulida	166.1 - 157.3 Ma Jurassic
Kutchithyris genus	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Postepithyrididae : *Kutchithyris*	166.1 - 157.3 Ma Jurassic
Somalirhynchia somalica species	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Tetrarhynchiidae : Somalirhynchia : *Somalirhynchia somalica*	166.1 - 157.3 Ma Jurassic
Recrosalenia somaliensis species	Animalia : Echinodermata : Echinoidea : Phymosomatoida : Heterodiadematidae : Recrosalenia : *Recrosalenia somaliensis*	166.1 - 157.3 Ma Jurassic
Musculus somaliensis species	Animalia : Mollusca : Bivalvia : Mytilida : Crenellidae : Musculus : *Musculus somaliensis*	166.1 - 157.3 Ma Jurassic

Fossil Localities

Click to show 1 fossil locality

Ethiopia

Afar Region
- Jurassic🐚 K 223 Alaita Hill

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Administrative_Zone_4_(Afar)
Wikidata ID:	Q3444707

Localities in this Region

Ethiopia

Afar Region
- Fanti Rasu

Other Regions, Features and Areas that Intersect

AfricaContinent

Afar Triangle (Afar Depression)Depression
East African Rift System (EARS)Zone (Tectonic)

African PlateTectonic Plate

East African Rift
- Ethiopian RiftNarrow Rift

Arabian 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.

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Mineral List

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Geochronology

Fossils

Other Databases

Localities in this Region

Other Regions, Features and Areas that Intersect

Fanti Rasu, Afar Region, Ethiopia i
Regional Level Types
Fanti Rasu Zone
Afar Region Region
Ethiopia Country