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Oklobondo Mine (Okélobondo Mine), Léboumbi-Leyou Department, Haut-Ogooué Province, Gaboni
Regional Level Types
Oklobondo Mine (Okélobondo Mine)Mine
Léboumbi-Leyou DepartmentDepartment
Haut-Ogooué ProvinceProvince
GabonCountry

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Latitude & Longitude (WGS84):
1° 30' 29'' South , 13° 16' 0'' East
Latitude & Longitude (decimal):
-1.50833,13.26667
GRN:
S02E10
Type:
Mine
Köppen climate type:
Aw : Tropical savanna, wet
Nearest Settlements:
PlacePopulationDistance
Moanda30,151 (2015)9.9km
Mounana8,780 (2012)16.4km
Franceville42,967 (2011)37.8km
Mindat Locality ID:
17172
Long-form identifier:
mindat:1:2:17172:7
GUID (UUID V4):
0


A uranium mine. Possibly the site of another Precambrian reactor, in an extension of the Oklo deposit. The last of the Gabon Uranium Mines to close (in 1997).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


8 valid minerals.

Detailed Mineral List:

ⓘ Anglesite
Formula: PbSO4
ⓘ 'Chlorite Group'
ⓘ Curienite
Formula: Pb(UO2)2(VO4)2 · 5H2O
ⓘ Donbassite
Formula: Al4.33(AlSi3O10)(OH)8
ⓘ Francevillite
Formula: Ba(UO2)2(VO4)2 · 5H2O
ⓘ Galena
Formula: PbS
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
ⓘ Uraninite
Formula: UO2
ⓘ Uraninite var. Pitchblende
Formula: UO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘGalena2.CD.10PbS
Group 4 - Oxides and Hydroxides
ⓘUraninite
var. Pitchblende		4.DL.05UO2
ⓘ4.DL.05UO2
ⓘCurienite4.HB.15Pb(UO2)2(VO4)2 · 5H2O
ⓘFrancevillite4.HB.15Ba(UO2)2(VO4)2 · 5H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnglesite7.AD.35PbSO4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘTorbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Group 9 - Silicates
ⓘMuscovite
var. Illite		9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘDonbassite9.EC.55Al4.33(AlSi3O10)(OH)8
Unclassified
ⓘ'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ CurienitePb(UO2)2(VO4)2 · 5H2O
Hⓘ FrancevilliteBa(UO2)2(VO4)2 · 5H2O
Hⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Hⓘ DonbassiteAl4.33(AlSi3O10)(OH)8
OOxygen
Oⓘ AnglesitePbSO4
Oⓘ CurienitePb(UO2)2(VO4)2 · 5H2O
Oⓘ FrancevilliteBa(UO2)2(VO4)2 · 5H2O
Oⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Uraninite var. PitchblendeUO2
Oⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Oⓘ UraniniteUO2
Oⓘ DonbassiteAl4.33(AlSi3O10)(OH)8
AlAluminium
Alⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ DonbassiteAl4.33(AlSi3O10)(OH)8
SiSilicon
Siⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ DonbassiteAl4.33(AlSi3O10)(OH)8
PPhosphorus
Pⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
SSulfur
Sⓘ AnglesitePbSO4
Sⓘ GalenaPbS
KPotassium
Kⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
VVanadium
Vⓘ CurienitePb(UO2)2(VO4)2 · 5H2O
Vⓘ FrancevilliteBa(UO2)2(VO4)2 · 5H2O
CuCopper
Cuⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
BaBarium
Baⓘ FrancevilliteBa(UO2)2(VO4)2 · 5H2O
PbLead
Pbⓘ AnglesitePbSO4
Pbⓘ CurienitePb(UO2)2(VO4)2 · 5H2O
Pbⓘ GalenaPbS
UUranium
Uⓘ CurienitePb(UO2)2(VO4)2 · 5H2O
Uⓘ FrancevilliteBa(UO2)2(VO4)2 · 5H2O
Uⓘ Uraninite var. PitchblendeUO2
Uⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Uⓘ UraniniteUO2

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate

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References

inis.iaea.org (n.d.) https://inis.iaea.org/search/searchsinglerecord.aspx?recordsFor=SingleRecord&RN=25008968
www.researchgate.net (n.d.) https://www.researchgate.net/publication/249526909_The_Okelobondo_natural_fission_reactor_Southeast_Gabon_Geology_mineralogy_and_retardation_of_nuclear-reaction_products
www.oieau.org (n.d.) https://www.oieau.org/eaudoc/system/files/documents/38/194265/194265_doc.pdf
Mining Annual Review (1985) 437.
Mobbs, Philip M. (1993) The Mineral Industry of Gabon. United States Department of the Interior, Bureau of Mines Minerals Yearbook: Mineral Industries of Africa: 51-54.
Peycelon, H. (1993) The reaction zones and the rock sampling in Oklo-Okelobondo.
Gurban, I., Laaksoharju, M., Made, B., Ledoux, E. (1999) Uranium transport around the reactor zone at Okelobondo (Oklo). Data evaluation with M3 and HYTEC. Technical Report TR-99-36.
Alstrup Jensen, Keld, Ewing, Rodney C. (2001) The Okélobondo natural fission reactor, southeast Gabon: Geology, mineralogy, and retardation of nuclear-reaction products. Geological Society of America Bulletin, 113 (1) 32-62 doi:10.1130/0016-7606(2001)113<0032:tolnfr>2.0.co;2
Jensen, K.A., Palenik, C.S., Fayek, M., Evins, L.Z., Janeczek, J., Ewing, R.C. (2003) The spent nuclear fuel analogue of the Oklo-Okélobondo and Bangombé natural fission reactors. Nordic Geological Winter Meeting (Sweden).
Salas, J., Ayora, C. (2004) Groundwater chemistry of the Okélebondo uraninite deposit area (Oklo, Gabon): two-dimensional reactive transport modelling. Journal of Contaminant Hydrology: 69: 115-137.
www.osti.gov (n.d.) https://www.osti.gov/etdeweb/servlets/purl/20062512
books.google.be (n.d.) https://books.google.be/books?id=vQiPecYNgPYC&pg=PA52&lpg=PA52&dq=okelobondo+mine&source=bl&ots=_Tg7cnmQqw&sig=ACfU3U1DQcmNAcH18MhO64pS2t_aA1tZoA&hl=nl&sa=X&ved=2ahUKEwjc2v7cxOLxAhW5wAIHHRgOBkoQ6AEwEnoECBkQAw#v=onepage&q=okelobondo%20mine&f=false
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