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Jebel Uweinat, Kufra District, Libyai
Regional Level Types
Jebel UweinatComplex
Kufra DistrictDistrict
LibyaCountry

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Latitude & Longitude (WGS84):
21° 55' North , 24° 55' East
Latitude & Longitude (decimal):
21.91667,24.91667
GeoHash:
G#: secswvzcb
GRN:
N15E17
Type:
Complex
Age:
55 ± 1.5 to 40 Ma
Geologic Time:
Eocene
Dating method:
K-Ar
Reference for age:
André, L., Klerkx, J., & Busrewil, M. T. (1991). Geochemical and Rb-Sr isotopic data on felsic rocks from the Jabal al Awaynat alkaline Intrusive Complex (SE Libya). In Symposium on the geology of Libya (pp. 2511-2527).
Köppen climate type:
BWh : Hot deserts climate
Mindat Locality ID:
227094
Long-form identifier:
mindat:1:2:227094:7
GUID (UUID V4):
0
Other/historical names associated with this locality:
Jabal al Awaynat; Al Uwaynat; Awenat


A very large alkaline complex approx. 38 km across EW & 23 km across NS on the Libyan border with Egypt (part of the complex is in Egypt) and near the Sudan border, consisting of alkali granite, syenite, trachyte and phonolite.

Note: Different spellings for the locality name exist.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


22 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:

ⓘ Aegirine
Formula: NaFe3+Si2O6
References:
Atherton, M.P., Lagha, S. & Flinn, D. 1991. The geochemistry and petrology of Jabal Arknu and Jabal al Awaynat alkaline ring complexes of SE Libya. In: Salem, M.J. & Busrewil, M.T. (eds) The geology of Libya, 7. Elsevier, Amsterdam, 2559-2576.
Hunting Geology and Geophysics Limited 1974. Geology of the Jabal Al Uwaynat area, Libyan Arab Republic. Report to Industrial Research Centre, Department of Geological Research and Mining, Tripoli. Boreham Wood, U.K. (unpublished).
Atherton, M.P., Lagha, S. & Flinn, D. 1991. The geochemistry and petrology of Jabal Arknu and Jabal al Awaynat alkaline ring complexes of SE Libya. In: Salem, M.J. & Busrewil, M.T. (eds) The geology of Libya, 7. Elsevier, Amsterdam, 2559-2576.
Hunting Geology and Geophysics Limited 1974. Geology of the Jabal Al Uwaynat area, Libyan Arab Republic. Report to Industrial Research Centre, Department of Geological Research and Mining, Tripoli. Boreham Wood, U.K. (unpublished).
Klerkx, J., & CC, R. (1976). PRELIMINARY K/AR RESULTS ON DIFFERENT IGNEOUS ROCK FORMATIONS FROM THE JEBEL UWEINAT REGION (SE LIBYA). Rapport Annuel l'Annee 1975. Department de Geologie et de Mineralogie du Musee Royal de l'Afrique Centrale, Tervuren, 105-111.
Vail, J. R. (1976). LOCATION AND GEOCHRONOLOGY OF IGNEOUS RING-COMPLEXES AND RELATED ROCKS IN NORTH-EAST AFRICA. Geologisches Jahrbuch, B20, 97-114.
Klerkx, J., & CC, R. (1976). PRELIMINARY K/AR RESULTS ON DIFFERENT IGNEOUS ROCK FORMATIONS FROM THE JEBEL UWEINAT REGION (SE LIBYA). Rapport Annuel l'Annee 1975. Department de Geologie et de Mineralogie du Musee Royal de l'Afrique Centrale, Tervuren, 105-111.
Klerkx, J. (1985, January). THE ALKALINE RING COMPLEXES OF JEBEL U WEINAT (SE LIBYA). In JOURNAL OF AFRICAN EARTH SCIENCES (Vol. 3, No. 1-2, pp. 275-275). THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB: PERGAMON-ELSEVIER SCIENCE LTD.
André, L., Klerkx, J., & Busrewil, M. T. (1991). Geochemical and Rb-Sr isotopic data on felsic rocks from the Jabal al Awaynat alkaline Intrusive Complex (SE Libya). In Symposium on the geology of Libya (pp. 2511-2527).
Flinn et al. (1992)
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Albite var. Anorthoclase
Formula: (Na,K)AlSi3O8
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
ⓘ Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Cancrinite
Formula: (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
ⓘ Catapleiite
Formula: Na2Zr(Si3O9) · 2H2O
ⓘ Eudialyte
Formula: Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
ⓘ Ferro-katophorite
Formula: {Na}{CaNa}{Fe2+4Al}[(AlSi7)O22](OH)2
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Keldyshite
Formula: (Na,H)2ZrSi2O7
ⓘ 'K Feldspar'
References:
Atherton, M.P., Lagha, S. & Flinn, D. 1991. The geochemistry and petrology of Jabal Arknu and Jabal al Awaynat alkaline ring complexes of SE Libya. In: Salem, M.J. & Busrewil, M.T. (eds) The geology of Libya, 7. Elsevier, Amsterdam, 2559-2576.
Hunting Geology and Geophysics Limited 1974. Geology of the Jabal Al Uwaynat area, Libyan Arab Republic. Report to Industrial Research Centre, Department of Geological Research and Mining, Tripoli. Boreham Wood, U.K. (unpublished).
Klerkx, J., & CC, R. (1976). PRELIMINARY K/AR RESULTS ON DIFFERENT IGNEOUS ROCK FORMATIONS FROM THE JEBEL UWEINAT REGION (SE LIBYA). Rapport Annuel l'Annee 1975. Department de Geologie et de Mineralogie du Musee Royal de l'Afrique Centrale, Tervuren, 105-111.
Vail, J. R. (1976). LOCATION AND GEOCHRONOLOGY OF IGNEOUS RING-COMPLEXES AND RELATED ROCKS IN NORTH-EAST AFRICA. Geologisches Jahrbuch, B20, 97-114.
Klerkx, J. (1985, January). THE ALKALINE RING COMPLEXES OF JEBEL U WEINAT (SE LIBYA). In JOURNAL OF AFRICAN EARTH SCIENCES (Vol. 3, No. 1-2, pp. 275-275). THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB: PERGAMON-ELSEVIER SCIENCE LTD.
André, L., Klerkx, J., & Busrewil, M. T. (1991). Geochemical and Rb-Sr isotopic data on felsic rocks from the Jabal al Awaynat alkaline Intrusive Complex (SE Libya). In Symposium on the geology of Libya (pp. 2511-2527).
ⓘ Låvenite
Formula: Na2Ca2Mn2Zr2(Si2O7)2O2F2
ⓘ Lorenzenite
Formula: Na2Ti2(Si2O6)O3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Natrolite
Formula: Na2Al2Si3O10 · 2H2O
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ Quartz
Formula: SiO2
References:
Atherton, M.P., Lagha, S. & Flinn, D. 1991. The geochemistry and petrology of Jabal Arknu and Jabal al Awaynat alkaline ring complexes of SE Libya. In: Salem, M.J. & Busrewil, M.T. (eds) The geology of Libya, 7. Elsevier, Amsterdam, 2559-2576.
Hunting Geology and Geophysics Limited 1974. Geology of the Jabal Al Uwaynat area, Libyan Arab Republic. Report to Industrial Research Centre, Department of Geological Research and Mining, Tripoli. Boreham Wood, U.K. (unpublished).
Klerkx, J., & CC, R. (1976). PRELIMINARY K/AR RESULTS ON DIFFERENT IGNEOUS ROCK FORMATIONS FROM THE JEBEL UWEINAT REGION (SE LIBYA). Rapport Annuel l'Annee 1975. Department de Geologie et de Mineralogie du Musee Royal de l'Afrique Centrale, Tervuren, 105-111.
Vail, J. R. (1976). LOCATION AND GEOCHRONOLOGY OF IGNEOUS RING-COMPLEXES AND RELATED ROCKS IN NORTH-EAST AFRICA. Geologisches Jahrbuch, B20, 97-114.
Klerkx, J. (1985, January). THE ALKALINE RING COMPLEXES OF JEBEL U WEINAT (SE LIBYA). In JOURNAL OF AFRICAN EARTH SCIENCES (Vol. 3, No. 1-2, pp. 275-275). THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB: PERGAMON-ELSEVIER SCIENCE LTD.
André, L., Klerkx, J., & Busrewil, M. T. (1991). Geochemical and Rb-Sr isotopic data on felsic rocks from the Jabal al Awaynat alkaline Intrusive Complex (SE Libya). In Symposium on the geology of Libya (pp. 2511-2527).
Flinn et al. (1992)
ⓘ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
References:
Atherton, M.P., Lagha, S. & Flinn, D. 1991. The geochemistry and petrology of Jabal Arknu and Jabal al Awaynat alkaline ring complexes of SE Libya. In: Salem, M.J. & Busrewil, M.T. (eds) The geology of Libya, 7. Elsevier, Amsterdam, 2559-2576.
Hunting Geology and Geophysics Limited 1974. Geology of the Jabal Al Uwaynat area, Libyan Arab Republic. Report to Industrial Research Centre, Department of Geological Research and Mining, Tripoli. Boreham Wood, U.K. (unpublished).
Klerkx, J., & CC, R. (1976). PRELIMINARY K/AR RESULTS ON DIFFERENT IGNEOUS ROCK FORMATIONS FROM THE JEBEL UWEINAT REGION (SE LIBYA). Rapport Annuel l'Annee 1975. Department de Geologie et de Mineralogie du Musee Royal de l'Afrique Centrale, Tervuren, 105-111.
Vail, J. R. (1976). LOCATION AND GEOCHRONOLOGY OF IGNEOUS RING-COMPLEXES AND RELATED ROCKS IN NORTH-EAST AFRICA. Geologisches Jahrbuch, B20, 97-114.
Klerkx, J. (1985, January). THE ALKALINE RING COMPLEXES OF JEBEL U WEINAT (SE LIBYA). In JOURNAL OF AFRICAN EARTH SCIENCES (Vol. 3, No. 1-2, pp. 275-275). THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB: PERGAMON-ELSEVIER SCIENCE LTD.
André, L., Klerkx, J., & Busrewil, M. T. (1991). Geochemical and Rb-Sr isotopic data on felsic rocks from the Jabal al Awaynat alkaline Intrusive Complex (SE Libya). In Symposium on the geology of Libya (pp. 2511-2527).
ⓘ Sodalite
Formula: Na4(Si3Al3)O12Cl
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ Zircon
Formula: Zr(SiO4)
References:
Atherton, M.P., Lagha, S. & Flinn, D. 1991. The geochemistry and petrology of Jabal Arknu and Jabal al Awaynat alkaline ring complexes of SE Libya. In: Salem, M.J. & Busrewil, M.T. (eds) The geology of Libya, 7. Elsevier, Amsterdam, 2559-2576.
Hunting Geology and Geophysics Limited 1974. Geology of the Jabal Al Uwaynat area, Libyan Arab Republic. Report to Industrial Research Centre, Department of Geological Research and Mining, Tripoli. Boreham Wood, U.K. (unpublished).
Klerkx, J., & CC, R. (1976). PRELIMINARY K/AR RESULTS ON DIFFERENT IGNEOUS ROCK FORMATIONS FROM THE JEBEL UWEINAT REGION (SE LIBYA). Rapport Annuel l'Annee 1975. Department de Geologie et de Mineralogie du Musee Royal de l'Afrique Centrale, Tervuren, 105-111.
Vail, J. R. (1976). LOCATION AND GEOCHRONOLOGY OF IGNEOUS RING-COMPLEXES AND RELATED ROCKS IN NORTH-EAST AFRICA. Geologisches Jahrbuch, B20, 97-114.
Klerkx, J. (1985, January). THE ALKALINE RING COMPLEXES OF JEBEL U WEINAT (SE LIBYA). In JOURNAL OF AFRICAN EARTH SCIENCES (Vol. 3, No. 1-2, pp. 275-275). THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB: PERGAMON-ELSEVIER SCIENCE LTD.
André, L., Klerkx, J., & Busrewil, M. T. (1991). Geochemical and Rb-Sr isotopic data on felsic rocks from the Jabal al Awaynat alkaline Intrusive Complex (SE Libya). In Symposium on the geology of Libya (pp. 2511-2527).
Flinn et al. (1992)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘQuartz4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘKeldyshite9.BC.10(Na,H)2ZrSi2O7
ⓘLåvenite9.BE.17Na2Ca2Mn2Zr2(Si2O7)2O2F2
ⓘCatapleiite9.CA.15Na2Zr(Si3O9) · 2H2O
ⓘEudialyte9.CO.10Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘLorenzenite9.DB.10Na2Ti2(Si2O6)O3
ⓘFerro-katophorite9.DE.20{Na}{CaNa}{Fe2+4Al}[(AlSi7)O22](OH)2
ⓘArfvedsonite9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
ⓘRiebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘvar. Anorthoclase9.FA.35(Na,K)AlSi3O8
ⓘCancrinite9.FB.05(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
ⓘSodalite9.FB.10Na4(Si3Al3)O12Cl
ⓘNatrolite9.GA.05Na2Al2Si3O10 · 2H2O
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'K Feldspar'-

List of minerals for each chemical element

HHydrogen
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Hⓘ CatapleiiteNa2Zr(Si3O9) · 2H2O
Hⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Hⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Hⓘ Keldyshite(Na,H)2ZrSi2O7
Hⓘ NatroliteNa2Al2Si3O10 · 2H2O
Hⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
CCarbon
Cⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Oⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Oⓘ CatapleiiteNa2Zr(Si3O9) · 2H2O
Oⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ IlmeniteFe2+TiO3
Oⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Oⓘ Keldyshite(Na,H)2ZrSi2O7
Oⓘ LorenzeniteNa2Ti2(Si2O6)O3
Oⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ NatroliteNa2Al2Si3O10 · 2H2O
Oⓘ QuartzSiO2
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ SodaliteNa4(Si3Al3)O12Cl
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ ZirconZr(SiO4)
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluorapatiteCa5(PO4)3F
Fⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Naⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Naⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Naⓘ CatapleiiteNa2Zr(Si3O9) · 2H2O
Naⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Naⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Naⓘ Keldyshite(Na,H)2ZrSi2O7
Naⓘ LorenzeniteNa2Ti2(Si2O6)O3
Naⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Naⓘ NephelineNa3K(Al4Si4O16)
Naⓘ NatroliteNa2Al2Si3O10 · 2H2O
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Naⓘ SodaliteNa4(Si3Al3)O12Cl
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Alⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ NatroliteNa2Al2Si3O10 · 2H2O
Alⓘ SodaliteNa4(Si3Al3)O12Cl
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Siⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Siⓘ CatapleiiteNa2Zr(Si3O9) · 2H2O
Siⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Siⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Siⓘ Keldyshite(Na,H)2ZrSi2O7
Siⓘ LorenzeniteNa2Ti2(Si2O6)O3
Siⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ NatroliteNa2Al2Si3O10 · 2H2O
Siⓘ QuartzSiO2
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ SodaliteNa4(Si3Al3)O12Cl
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ ZirconZr(SiO4)
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
SSulfur
Sⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
ClChlorine
Clⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Clⓘ SodaliteNa4(Si3Al3)O12Cl
KPotassium
Kⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ NephelineNa3K(Al4Si4O16)
CaCalcium
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Caⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Caⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Caⓘ TitaniteCaTi(SiO4)O
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ LorenzeniteNa2Ti2(Si2O6)O3
Tiⓘ TitaniteCaTi(SiO4)O
MnManganese
Mnⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Feⓘ IlmeniteFe2+TiO3
Feⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
ZrZirconium
Zrⓘ CatapleiiteNa2Zr(Si3O9) · 2H2O
Zrⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Zrⓘ Keldyshite(Na,H)2ZrSi2O7
Zrⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Zrⓘ ZirconZr(SiO4)

Geochronology

Mineralization age: Paleogene : 45.6 ± 1 Ma to 32.0 ± 1 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
  Paleogene
   Oligocene
ⓘ Dolerite32.0 ± 1 Ma
   Eocene
ⓘ K Feldspar (youngest age)41.7 ± 1 Ma
ⓘ Aegirine42 ± 1 Ma
ⓘ Zircon42.3 ± 0.8 Ma
ⓘ K Feldspar (oldest age)45 ± 1 Ma
ⓘ Phonolite45.6 ± 1 Ma

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate
North Africa

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References

Atherton, M.P., Lagha, S. & Flinn, D. 1991. The geochemistry and petrology of Jabal Arknu and Jabal al Awaynat alkaline ring complexes of SE Libya. In: Salem, M.J. & Busrewil, M.T. (eds) The geology of Libya, 7. Elsevier, Amsterdam, 2559-2576.
Hunting Geology and Geophysics Limited 1974. Geology of the Jabal Al Uwaynat area, Libyan Arab Republic. Report to Industrial Research Centre, Department of Geological Research and Mining, Tripoli. Boreham Wood, U.K. (unpublished).
Vail, J. R. (1976). LOCATION AND GEOCHRONOLOGY OF IGNEOUS RING-COMPLEXES AND RELATED ROCKS IN NORTH-EAST AFRICA. Geologisches Jahrbuch, B20, 97-114.
Klerkx, J., & CC, R. (1976). PRELIMINARY K/AR RESULTS ON DIFFERENT IGNEOUS ROCK FORMATIONS FROM THE JEBEL UWEINAT REGION (SE LIBYA). Rapport Annuel l'Annee 1975. Department de Geologie et de Mineralogie du Musee Royal de l'Afrique Centrale, Tervuren, 105-111.
Klerkx, J. (1985, January). THE ALKALINE RING COMPLEXES OF JEBEL U WEINAT (SE LIBYA). In JOURNAL OF AFRICAN EARTH SCIENCES (Vol. 3, No. 1-2, pp. 275-275). THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB: PERGAMON-ELSEVIER SCIENCE LTD.
André, L., Klerkx, J., & Busrewil, M. T. (1991). Geochemical and Rb-Sr isotopic data on felsic rocks from the Jabal al Awaynat alkaline Intrusive Complex (SE Libya). In Symposium on the geology of Libya (pp. 2511-2527).
FLINN, D., LAGHA, S., ATHERTON, M.P. & CLIFF, R.A. (1992) The rock-forming minerals of the Jabal Arknu and Jabal Awaynat alkaline ring complexes of SE Libya. In: The Geology of Libya, Vol VII edited by Salem et al. (Elsevier) 2539-2557.
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.146
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