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Sagatu Ridge, Arsi Zone, Oromia Region, Ethiopiai
Regional Level Types
Sagatu RidgeFissure
Arsi ZoneZone
Oromia RegionRegion
EthiopiaCountry

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Latitude & Longitude:
7° North , 39° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~148km
GRN:
N06E28
Type:
Fissure
Mindat Locality ID:
406697
Long-form identifier:
mindat:1:2:406697:5
GUID (UUID V4):
debeaf4f-050c-4792-9dc1-3f13f48a5a1e


Extending southwards from Badda Volcano, Arsi Zone, Oromia Region, Ethiopia for some 70 km is the Sagatu Ridge which is the dissected remnant of a 7 km wide fissure system (Mohr 1980) the central 2 km of which is the locus of a dike swarm.

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
Formula: NaFe3+Si2O6
β“˜ Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
β“˜ Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
β“˜ Albite
Formula: Na(AlSi3O8)
β“˜ Albite var. Anorthoclase
Formula: (Na,K)AlSi3O8
β“˜ 'Alkali Feldspar'
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ Quartz
Formula: SiO2
β“˜ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Quartz4.DA.05SiO2
Group 9 - Silicates
β“˜Aegirine-augite9.DA.20(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
β“˜Aegirine9.DA.25NaFe3+Si2O6
β“˜Riebeckite9.DE.25β—»[Na2][Fe2+3Fe3+2]Si8O22(OH)2
β“˜Aenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
β“˜Albite9.FA.35Na(AlSi3O8)
β“˜var. Anorthoclase9.FA.35(Na,K)AlSi3O8
Unclassified
β“˜'Alkali Feldspar'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
OOxygen
Oβ“˜ AegirineNaFe3+Si2O6
Oβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Oβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ Albite var. Anorthoclase(Na,K)AlSi3O8
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ QuartzSiO2
Oβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
NaSodium
Naβ“˜ AegirineNaFe3+Si2O6
Naβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Naβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Naβ“˜ AlbiteNa(AlSi3O8)
Naβ“˜ Albite var. Anorthoclase(Na,K)AlSi3O8
Naβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
MgMagnesium
Mgβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
AlAluminium
Alβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ Albite var. Anorthoclase(Na,K)AlSi3O8
SiSilicon
Siβ“˜ AegirineNaFe3+Si2O6
Siβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Siβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ Albite var. Anorthoclase(Na,K)AlSi3O8
Siβ“˜ QuartzSiO2
Siβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
KPotassium
Kβ“˜ Albite var. Anorthoclase(Na,K)AlSi3O8
CaCalcium
Caβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
TiTitanium
Tiβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
FeIron
Feβ“˜ AegirineNaFe3+Si2O6
Feβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Feβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2

Other Regions, Features and Areas containing this locality

Africa

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References

Di Paola, G.M. 1973. The Ethiopian rift valley (between 7ΒΊ00' and 8ΒΊ40' lat.north). Bulletin Volcanologique, 36, 517-560.
Mohr, P. A., & Potter, E. C. (1976). The Sagatu Ridge dike swarm, Ethiopian rift margin. Journal of Volcanology and Geothermal Research, 1(1), 55-71. doi.org/10.1016/0377-0273(76)90018-4
Mohr, P. (1980). Geochemical aspects of the Sagatu dyke swarm, Ethiopian Rift margin. In Geodynamic Evolution of the Afro-Arabian Rift System (Vol. 47, pp. 387-406).
Kennan, P. S., Mitchell, J. G., & Mohr, P. (1990). The Sagatu Ridge dyke swarm, Ethiopian rift margin: revised age and new Sr-isotopic data. Journal of African Earth Sciences (and the Middle East), 11(1-2), 39-42. doi.org/10.1016/0899-5362(90)90075-P
Woolley, A. R. (2001). Alkaline rocks and carbonatites of the world. Part 3: Africa. Geological Society. Natural History Museum, London, p. 85.
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