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Oklo Mine, Léboumbi-Leyou Department, Haut-Ogooué Province, Gaboni
Regional Level Types
Oklo MineMine
Léboumbi-Leyou DepartmentDepartment
Haut-Ogooué ProvinceProvince
GabonCountry

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PhotosMapsSearch
09696000017501724046892.jpg
Curite, etc.

Oklo Mine, Léboumbi-Leyou Department, Haut-Ogooué Province, Gabon
09141050017378645912816.jpg
Francevillite, etc.

Oklo Mine, Léboumbi-Leyou Department, Haut-Ogooué Province, Gabon
05733030017473585272431.jpg
Wölsendorfite

Oklo Mine, Léboumbi-Leyou Department, Haut-Ogooué Province, Gabon
06631690017473620506849.jpg
Curite, etc.

Oklo Mine, Léboumbi-Leyou Department, Haut-Ogooué Province, Gabon
00278660017377790627235.jpg
Francevillite, etc.

Oklo Mine, Léboumbi-Leyou Department, Haut-Ogooué Province, Gabon
05733030017473585272431.jpg
Wölsendorfite

Oklo Mine, Léboumbi-Leyou Department, Haut-Ogooué Province, Gabon
09696000017501724046892.jpg
Curite, etc.

Oklo Mine, Léboumbi-Leyou Department, Haut-Ogooué Province, Gabon
09141050017378645912816.jpg
Francevillite, etc.

Oklo Mine, Léboumbi-Leyou Department, Haut-Ogooué Province, Gabon
Latitude & Longitude (WGS84):
1° 24' 2'' South , 13° 9' 24'' East
Latitude & Longitude (decimal):
-1.40083,13.15667
GRN:
S01E10
Type:
Mine
Köppen climate type:
Aw : Tropical savanna, wet
Nearest Settlements:
PlacePopulationDistance
Mounana8,780 (2012)0.9km
Moanda30,151 (2015)19.0km
Franceville42,967 (2011)54.0km
Mindat Locality ID:
1749
Long-form identifier:
mindat:1:2:1749:0
GUID (UUID V4):
0


This mine near the Mounana Mine is the site of over a dozen Precambrian natural nuclear reactors. It is particularly known as the "Oklo phenomenon". Secondary enrichment of uranium oxides in cm to meter-sized veins moderated by groundwater consumed six tons of U-235 and elevated temperatures to a few hundred Celsius. This uranium isotope, normally standing for less than 1% of the uranium ore, is predicted to be at 3% level in Oklo at the beginning (now relatively strongly depleted). Remarkably the non-volatile fission products moved only a few cm in the veins during the last 1.5 billion years!

Gillberg-Wickmann (1983) points at Oklo as the only natural example of a significant isotope fractionation between U-235 and U-238.

Meshik (2005) states, that (1) U-free Al phosphate minerals from the deposit concentrate the highest amount of xenon found in natural material; (2) once upon a time over 2 tons of plutonium 239 were generated within the deposit.

See also Bangombé (https://www.mindat.org/loc-23815.html), another natural nuclear reactor in the same area.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


48 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Baryte
Formula: BaSO4
ⓘ Bassetite
Formula: Fe2+(UO2)2(PO4)2 · 10H2O
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Chervetite
Formula: Pb2(V2O7)
ⓘ 'Chlorite Group'
ⓘ 'Clay minerals'
ⓘ Coffinite
Formula: U(SiO4) · nH2O
ⓘ Covellite
Formula: CuS
ⓘ Curienite
Formula: Pb(UO2)2(VO4)2 · 5H2O
ⓘ Curite
Formula: Pb3(H2O)2[(UO2)4O4(OH)3]2
References:
Chuck Adan collection.Identified by Paul De Bondt: Visual Identification
ⓘ Dewindtite
Formula: H2Pb3(UO2)6O4(PO4)4 · 12H2O
ⓘ Digenite
Formula: Cu9S5
ⓘ Duttonite
Formula: V4+O(OH)2
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
ⓘ Fourmarierite
Formula: Pb(UO2)4O3(OH)4 · 4H2O
ⓘ Francevillite
Formula: Ba(UO2)2(VO4)2 · 5H2O
ⓘ Froodite
Formula: α-PdBi2
ⓘ Galena
Formula: PbS
References:
Lena Z. Evins, Keld A. Jensen, Rodney C. Ewing, Uraninite recrystallization and Pb loss in the Oklo and Bangombé natural fission reactors, Gabon, Geochimica et Cosmochimica Acta, Volume 69, Issue 6, 15 March 2005, Pages 1589-1606, ISSN 0016-7037, 10.1016/j.gca.2004.07.013.
Janusz Janeczek (1999) Mineralogy and geochemistry of natural fission reactors in Gabon. Reviews in Mineralogy and Geochemistry, MSA, v. 38, p. 321-392
Lena Zetterström and Torbjörn Sunde (2000). Galena Crystallization and the Origin of Sulfur in the Oklo and Bangombé Natural Reactors: The Effects of a ca. 900 Ma Thermal Event. MRS Proceedings, 663, 953 doi:10.1557/PROC-663-953.
Utsunomiya, S., & Ewing, R. C. (2006). The fate of the epsilon phase (Mo-Ru-Pd-Tc-Rh) in the UO2 of the Oklo natural fission reactors. Radiochimica Acta, 94(9-11), 749-753.
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Hematite
Formula: Fe2O3
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Karelianite
Formula: V3+2O3
ⓘ Kasolite
Formula: Pb(UO2)(SiO4) · H2O
ⓘ Metavanuralite
Formula: Al(UO2)2(VO4)2(OH) · 8H2O
ⓘ Minium
Formula: Pb3O4
ⓘ Molybdenite
Formula: MoS2
ⓘ Montroseite
Formula: (V3+,Fe3+)O(OH)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ Native Copper
Formula: Cu
ⓘ Native Lead
Formula: Pb
ⓘ Nolanite
Formula: V3+8Fe3+2O14(OH)2
ⓘ Palladodymite
Formula: (Pd,Rh)2As
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Rhodarsenide
Formula: (Rh,Pd)2As
ⓘ Roscoelite
Formula: KV3+2(AlSi3O10)(OH)2
ⓘ Ruthenarsenite
Formula: (Ru,Ni)As
ⓘ Rutherfordine
Formula: (UO2)CO3
ⓘ Sphalerite
Formula: ZnS
ⓘ Sudoite
Formula: Mg2Al3(AlSi3O10)(OH)8
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
ⓘ Uraninite
Formula: UO2
References:
Lena Z. Evins, Keld A. Jensen, Rodney C. Ewing, Uraninite recrystallization and Pb loss in the Oklo and Bangombé natural fission reactors, Gabon, Geochimica et Cosmochimica Acta, Volume 69, Issue 6, 15 March 2005, Pages 1589-1606, ISSN 0016-7037, 10.1016/j.gca.2004.07.013.
Gauthier-Lafaye, F., Weber, F., Ohmoto, H. (1989) Natural fission reactors of Oklo. Economic Geology, 84 (8) 2286-2295 doi:10.2113/gsecongeo.84.8.2286
Dymkov, Y., Holliger, P., Pagel, M., Gorshkov, A., Artyukhina, A. (1997) Characterization of a La-Ce-Sr-Ca aluminous hydroxy phosphate in nuclear zone 13 in the Oklo uranium deposit (Gabon) Mineralium Deposita, 32 (6) 617-620 doi:10.1007/s001260050127
Janusz Janeczek (1999) Mineralogy and geochemistry of natural fission reactors in Gabon. Reviews in Mineralogy and Geochemistry, MSA, v. 38, p. 321-392
Utsunomiya, S., & Ewing, R. C. (2006). The fate of the epsilon phase (Mo-Ru-Pd-Tc-Rh) in the UO2 of the Oklo natural fission reactors. Radiochimica Acta, 94(9-11), 749-753.
ⓘ Uraninite var. Pitchblende
Formula: UO2
ⓘ Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
ⓘ Vanuralite
Formula: Al(UO2)2(V2O8)(OH) · 11H2O
ⓘ Wölsendorfite
Formula: Pb7(UO2)14O19(OH)4 · 12H2O
ⓘ Wulfenite
Formula: Pb(MoO4)
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
ⓘNative Lead1.AA.05Pb
Group 2 - Sulphides and Sulfosalts
ⓘRhodarsenide2.AC.25b(Rh,Pd)2As
ⓘPalladodymite2.AC.25c(Pd,Rh)2As
ⓘFroodite2.AC.45aα-PdBi2
ⓘDigenite2.BA.10Cu9S5
ⓘBornite2.BA.15Cu5FeS4
ⓘCovellite2.CA.05aCuS
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘRuthenarsenite2.CC.15(Ru,Ni)As
ⓘGalena2.CD.10PbS
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘMinium4.BD.05Pb3O4
ⓘHematite4.CB.05Fe2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘKarelianite4.CB.05V3+2O3
ⓘNolanite4.CB.40V3+8Fe3+2O14(OH)2
ⓘQuartz4.DA.05SiO2
ⓘUraninite
var. Pitchblende		4.DL.05UO2
ⓘ4.DL.05UO2
ⓘMontroseite4.FD.10(V3+,Fe3+)O(OH)
ⓘFourmarierite4.GB.25Pb(UO2)4O3(OH)4 · 4H2O
ⓘWölsendorfite4.GB.30Pb7(UO2)14O19(OH)4 · 12H2O
ⓘCurite4.GB.55Pb3(H2O)2[(UO2)4O4(OH)3]2
ⓘCurienite4.HB.15Pb(UO2)2(VO4)2 · 5H2O
ⓘFrancevillite4.HB.15Ba(UO2)2(VO4)2 · 5H2O
ⓘMetavanuralite4.HB.20Al(UO2)2(VO4)2(OH) · 8H2O
ⓘVanuralite4.HB.20Al(UO2)2(V2O8)(OH) · 11H2O
ⓘDuttonite4.HE.35V4+O(OH)2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘRutherfordine5.EB.05(UO2)CO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘWulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘFluorapatite8.BN.05Ca5(PO4)3F
ⓘTorbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
ⓘBassetite8.EB.10Fe2+(UO2)2(PO4)2 · 10H2O
ⓘDewindtite8.EC.10H2Pb3(UO2)6O4(PO4)4 · 12H2O
ⓘChervetite8.FA.15Pb2(V2O7)
Group 9 - Silicates
ⓘCoffinite9.AD.30U(SiO4) · nH2O
ⓘZircon9.AD.30Zr(SiO4)
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘKasolite9.AK.15Pb(UO2)(SiO4) · H2O
ⓘUranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
ⓘMuscovite
var. Illite		9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘRoscoelite9.EC.15KV3+2(AlSi3O10)(OH)2
ⓘSudoite9.EC.55Mg2Al3(AlSi3O10)(OH)8
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Clay minerals'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8

List of minerals for each chemical element

HHydrogen
Hⓘ BassetiteFe2+(UO2)2(PO4)2 · 10H2O
Hⓘ CoffiniteU(SiO4) · nH2O
Hⓘ CurienitePb(UO2)2(VO4)2 · 5H2O
Hⓘ CuritePb3(H2O)2[(UO2)4O4(OH)3]2
Hⓘ DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2O
Hⓘ DuttoniteV4+O(OH)2
Hⓘ FourmarieritePb(UO2)4O3(OH)4 · 4H2O
Hⓘ FrancevilliteBa(UO2)2(VO4)2 · 5H2O
Hⓘ GoethiteFe3+O(OH)
Hⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hⓘ KasolitePb(UO2)(SiO4) · H2O
Hⓘ MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2O
Hⓘ Montroseite(V3+,Fe3+)O(OH)
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ NolaniteV83+Fe23+O14(OH)2
Hⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
Hⓘ SudoiteMg2Al3(AlSi3O10)(OH)8
Hⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Hⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Hⓘ VanuraliteAl(UO2)2(V2O8)(OH) · 11H2O
Hⓘ WölsendorfitePb7(UO2)14O19(OH)4 · 12H2O
CCarbon
Cⓘ CalciteCaCO3
Cⓘ Rutherfordine(UO2)CO3
OOxygen
Oⓘ BaryteBaSO4
Oⓘ BassetiteFe2+(UO2)2(PO4)2 · 10H2O
Oⓘ CalciteCaCO3
Oⓘ ChervetitePb2(V2O7)
Oⓘ CoffiniteU(SiO4) · nH2O
Oⓘ CurienitePb(UO2)2(VO4)2 · 5H2O
Oⓘ CuritePb3(H2O)2[(UO2)4O4(OH)3]2
Oⓘ DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2O
Oⓘ DuttoniteV4+O(OH)2
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ FourmarieritePb(UO2)4O3(OH)4 · 4H2O
Oⓘ FrancevilliteBa(UO2)2(VO4)2 · 5H2O
Oⓘ GoethiteFe3+O(OH)
Oⓘ HematiteFe2O3
Oⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oⓘ IlmeniteFe2+TiO3
Oⓘ KarelianiteV23+O3
Oⓘ KasolitePb(UO2)(SiO4) · H2O
Oⓘ MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2O
Oⓘ MiniumPb3O4
Oⓘ Montroseite(V3+,Fe3+)O(OH)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ NolaniteV83+Fe23+O14(OH)2
Oⓘ Uraninite var. PitchblendeUO2
Oⓘ QuartzSiO2
Oⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
Oⓘ Rutherfordine(UO2)CO3
Oⓘ SudoiteMg2Al3(AlSi3O10)(OH)8
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Oⓘ UraniniteUO2
Oⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Oⓘ VanuraliteAl(UO2)2(V2O8)(OH) · 11H2O
Oⓘ WölsendorfitePb7(UO2)14O19(OH)4 · 12H2O
Oⓘ WulfenitePb(MoO4)
Oⓘ ZirconZr(SiO4)
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
FFluorine
Fⓘ FluorapatiteCa5(PO4)3F
NaSodium
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ SudoiteMg2Al3(AlSi3O10)(OH)8
AlAluminium
Alⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alⓘ MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2O
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
Alⓘ SudoiteMg2Al3(AlSi3O10)(OH)8
Alⓘ VanuraliteAl(UO2)2(V2O8)(OH) · 11H2O
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ CoffiniteU(SiO4) · nH2O
Siⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siⓘ KasolitePb(UO2)(SiO4) · H2O
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
Siⓘ SudoiteMg2Al3(AlSi3O10)(OH)8
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Siⓘ ZirconZr(SiO4)
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
PPhosphorus
Pⓘ BassetiteFe2+(UO2)2(PO4)2 · 10H2O
Pⓘ DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2O
Pⓘ FluorapatiteCa5(PO4)3F
Pⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
SSulfur
Sⓘ BaryteBaSO4
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ CovelliteCuS
Sⓘ DigeniteCu9S5
Sⓘ GalenaPbS
Sⓘ MolybdeniteMoS2
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
KPotassium
Kⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ TitaniteCaTi(SiO4)O
VVanadium
Vⓘ ChervetitePb2(V2O7)
Vⓘ CurienitePb(UO2)2(VO4)2 · 5H2O
Vⓘ DuttoniteV4+O(OH)2
Vⓘ FrancevilliteBa(UO2)2(VO4)2 · 5H2O
Vⓘ KarelianiteV23+O3
Vⓘ MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2O
Vⓘ Montroseite(V3+,Fe3+)O(OH)
Vⓘ NolaniteV83+Fe23+O14(OH)2
Vⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
Vⓘ VanuraliteAl(UO2)2(V2O8)(OH) · 11H2O
FeIron
Feⓘ BassetiteFe2+(UO2)2(PO4)2 · 10H2O
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ GoethiteFe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ IlmeniteFe2+TiO3
Feⓘ Montroseite(V3+,Fe3+)O(OH)
Feⓘ NolaniteV83+Fe23+O14(OH)2
Feⓘ PyriteFeS2
NiNickel
Niⓘ Ruthenarsenite(Ru,Ni)As
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CovelliteCuS
Cuⓘ Native CopperCu
Cuⓘ DigeniteCu9S5
Cuⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ Ruthenarsenite(Ru,Ni)As
Asⓘ Palladodymite(Pd,Rh)2As
Asⓘ Rhodarsenide(Rh,Pd)2As
ZrZirconium
Zrⓘ ZirconZr(SiO4)
MoMolybdenum
Moⓘ MolybdeniteMoS2
Moⓘ WulfenitePb(MoO4)
RuRuthenium
Ruⓘ Ruthenarsenite(Ru,Ni)As
RhRhodium
Rhⓘ Palladodymite(Pd,Rh)2As
Rhⓘ Rhodarsenide(Rh,Pd)2As
PdPalladium
Pdⓘ Frooditeα-PdBi2
Pdⓘ Palladodymite(Pd,Rh)2As
Pdⓘ Rhodarsenide(Rh,Pd)2As
BaBarium
Baⓘ BaryteBaSO4
Baⓘ FrancevilliteBa(UO2)2(VO4)2 · 5H2O
PbLead
Pbⓘ ChervetitePb2(V2O7)
Pbⓘ CurienitePb(UO2)2(VO4)2 · 5H2O
Pbⓘ CuritePb3(H2O)2[(UO2)4O4(OH)3]2
Pbⓘ DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2O
Pbⓘ FourmarieritePb(UO2)4O3(OH)4 · 4H2O
Pbⓘ GalenaPbS
Pbⓘ KasolitePb(UO2)(SiO4) · H2O
Pbⓘ Native LeadPb
Pbⓘ MiniumPb3O4
Pbⓘ WölsendorfitePb7(UO2)14O19(OH)4 · 12H2O
Pbⓘ WulfenitePb(MoO4)
BiBismuth
Biⓘ Frooditeα-PdBi2
UUranium
Uⓘ BassetiteFe2+(UO2)2(PO4)2 · 10H2O
Uⓘ CoffiniteU(SiO4) · nH2O
Uⓘ CurienitePb(UO2)2(VO4)2 · 5H2O
Uⓘ CuritePb3(H2O)2[(UO2)4O4(OH)3]2
Uⓘ DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2O
Uⓘ FourmarieritePb(UO2)4O3(OH)4 · 4H2O
Uⓘ FrancevilliteBa(UO2)2(VO4)2 · 5H2O
Uⓘ KasolitePb(UO2)(SiO4) · H2O
Uⓘ MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2O
Uⓘ Uraninite var. PitchblendeUO2
Uⓘ Rutherfordine(UO2)CO3
Uⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Uⓘ UraniniteUO2
Uⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Uⓘ VanuraliteAl(UO2)2(V2O8)(OH) · 11H2O
Uⓘ WölsendorfitePb7(UO2)14O19(OH)4 · 12H2O

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Oklo_Mine
Wikidata ID:Q12029714

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate

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References

Gauthier-Lafaye, F., Weber, F., Ohmoto, H. (1989) Natural fission reactors of Oklo. Economic Geology, 84 (8) 2286-2295 doi:10.2113/gsecongeo.84.8.2286
Eberly, P.; Janeczek, J.; Ewing, R. C. (1994) Petrographic Analysis of Samples from the Uranium Deposit at Oklo, Republic of Gabon. Radiochimica Acta, 66-67 (s1). 455-462 doi:10.1524/ract.1994.6667.s1.455
Dymkov, Y., Holliger, P., Pagel, M., Gorshkov, A., Artyukhina, A. (1997) Characterization of a La-Ce-Sr-Ca aluminous hydroxy phosphate in nuclear zone 13 in the Oklo uranium deposit (Gabon) Mineralium Deposita, 32 (6) 617-620 doi:10.1007/s001260050127
Janeczek, J. (1999) Mineralogy and geochemistry of natural fission reactors in Gabon. Reviews in Mineralogy and Geochemistry: 38: 321-392.
Hidaka, H. (1999) Isotopic study of natural fission reactors at Oklo and Bangombé, Gabon. Journal of Radioanalytical and Nuclear Chemistry, 239. 53-58 doi:10.1007/bf02349532
en.wikipedia.org (n.d.) http://en.wikipedia.org/wiki/Oklo
Meshik, A.P. (2005) The Workings of an Ancient Nuclear Reactor. Scientific American: 293(5): 82-6, 88, 90-91.
Utsunomiya, S., & Ewing, R. C. (2006). The fate of the epsilon phase (Mo-Ru-Pd-Tc-Rh) in the UO2 of the Oklo natural fission reactors. Radiochimica Acta, 94(9-11), 749-753.
Hidaka, H. (2007) Geochemical characteristics of an ancient nuclear reactor "Oklo". Journal of Nuclear and Radiochemical Sciences: 8: 99-103.
Salas, J., Ayora, C., Carreras, J. (2008) Origin and oxidation processes of the Oklo uranium ore, Gabon: Reactive transport modelling. In: Merkel B.J., Hasche-Berger A. (eds) Uranium, Mining and Hydrogeology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-87746-2_125
link.springer.com (n.d.) https://link.springer.com/chapter/10.1007/978-3-540-87746-2_125
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