Mayo Kebi granite, Mayo-Kebbi Est Region, Chadi
| Regional Level Types | |
|---|---|
| Mayo Kebi granite | Occurrence |
| Mayo-Kebbi Est Region | Region |
| Chad | Country |
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Latitude & Longitude (WGS84):
9° 58' North , 15° 13' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Bongor | 27,770 (2012) | 38.8km |
| Yagoua | 80,235 (2012) | 41.6km |
| Gounou Gaya | 9,521 (2012) | 49.6km |
The Mayo-Kebbi massif is dominantly made of Neoproterozoic juvenile crust composed of granites and greenstone belts. The greenstone belts trend NNE-SSW. They comprise the Zalbi series to the west and the Goueygoudoum series to the east. The Zalbi series include metagabbro, metabasalt, chlorite-schist, talc-schist, and serpentinite, while the Goueygoudoum series consist of metabasalt associated with metacarbonatite and metacherts. Metamorphism recorded by these greenstone belts typically ranges from the lower greenschist facies in the Goueygoudoum series to the upper greenschist/amphibolite facies in the Zalbi series. To the west, close to the ChadCameroon border, the Zalbi series grade into tonalitic migmatitic gneisses of the Figuil complex.
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Rock Types Recorded
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Alphabetical List Tree DiagramDetailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | Brannerite | 4.DH.05 | UTi2O6 |
| ⓘ | Uraninite var. Pitchblende | 4.DL.05 | UO2 |
| ⓘ | 4.DL.05 | UO2 | |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
| Group 9 - Silicates | |||
| ⓘ | Coffinite | 9.AD.30 | U(SiO4) · nH2O |
| ⓘ | Thorite | 9.AD.30 | Th(SiO4) |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Thorite var. Uranothorite | 9.AD.30 | (Th,U)SiO4 |
| ⓘ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| ⓘ | Kasolite | 9.AK.15 | Pb(UO2)(SiO4) · H2O |
| ⓘ | Parauranophane | 9.AK.15 | Ca(UO2)2(SiO3OH)2 · 5H2O |
| ⓘ | Uranophane | 9.AK.15 | Ca(UO2)2(SiO3OH)2 · 5H2O |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Hastingsite | 9.DE.15 | NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2 |
| ⓘ | Riebeckite | 9.DE.25 | ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2 |
| ⓘ | Ekanite | 9.EA.10 | Ca2ThSi8O20 |
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Saponite | 9.EC.45 | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| ⓘ | Orthoclase | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var. Andesine | 9.FA.35 | (Na,Ca)[Al(Si,Al)Si2O8] |
| Unclassified | |||
| ⓘ | 'Amphibole Supergroup' | - | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Calcium Amphibole Subgroup var. Hornblende' | - | AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| ⓘ | 'Monazite Group' | - | REE(PO4) |
| ⓘ | 'Xenotime' | - | |
| ⓘ | 'Feldspar Group var. Perthite' | - | |
| ⓘ | 'Mica Group' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
| ⓘ | 'Calcium Amphibole Subgroup' | - | AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| ⓘ | 'White mica' | - | |
| ⓘ | 'Calcic plagioclase' | - | |
| ⓘ | 'Myrmekite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Coffinite | U(SiO4) · nH2O |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| H | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| H | ⓘ Kasolite | Pb(UO2)(SiO4) · H2O |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Riebeckite | ◻[Na2][Fe32+Fe23+]Si8O22(OH)2 |
| H | ⓘ Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| H | ⓘ Parauranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| H | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| H | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | ⓘ Albite var. Andesine | (Na,Ca)[Al(Si,Al)Si2O8] |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Brannerite | UTi2O6 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Coffinite | U(SiO4) · nH2O |
| O | ⓘ Ekanite | Ca2ThSi8O20 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Kasolite | Pb(UO2)(SiO4) · H2O |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Monazite Group | REE(PO4) |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Orthoclase | K(AlSi3O8) |
| O | ⓘ Uraninite var. Pitchblende | UO2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Riebeckite | ◻[Na2][Fe32+Fe23+]Si8O22(OH)2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | ⓘ Thorite | Th(SiO4) |
| O | ⓘ Titanite | CaTi(SiO4)O |
| O | ⓘ Uraninite | UO2 |
| O | ⓘ Parauranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| O | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Thorite var. Uranothorite | (Th,U)SiO4 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| O | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| F | Fluorine | |
| F | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | ⓘ Fluorapatite | Ca5(PO4)3F |
| F | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| F | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Albite var. Andesine | (Na,Ca)[Al(Si,Al)Si2O8] |
| Na | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| Na | ⓘ Riebeckite | ◻[Na2][Fe32+Fe23+]Si8O22(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 | ⓘ Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| 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 | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| Al | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Orthoclase | K(AlSi3O8) |
| Al | ⓘ Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| 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 | ⓘ Coffinite | U(SiO4) · nH2O |
| Si | ⓘ Ekanite | Ca2ThSi8O20 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| Si | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Si | ⓘ Kasolite | Pb(UO2)(SiO4) · H2O |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Orthoclase | K(AlSi3O8) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Riebeckite | ◻[Na2][Fe32+Fe23+]Si8O22(OH)2 |
| Si | ⓘ Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | ⓘ Thorite | Th(SiO4) |
| Si | ⓘ Titanite | CaTi(SiO4)O |
| Si | ⓘ Parauranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| Si | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Thorite var. Uranothorite | (Th,U)SiO4 |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| P | Phosphorus | |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| P | ⓘ Monazite Group | REE(PO4) |
| P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| Cl | Chlorine | |
| Cl | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Cl | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Cl | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| K | Potassium | |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Orthoclase | K(AlSi3O8) |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Albite var. Andesine | (Na,Ca)[Al(Si,Al)Si2O8] |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Ekanite | Ca2ThSi8O20 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
| Ca | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| Ca | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Ca | ⓘ Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Ca | ⓘ Titanite | CaTi(SiO4)O |
| Ca | ⓘ Parauranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| Ca | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Ca | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Ti | Titanium | |
| Ti | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘ Brannerite | UTi2O6 |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Rutile | TiO2 |
| Ti | ⓘ Titanite | CaTi(SiO4)O |
| Fe | Iron | |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Hastingsite | NaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Riebeckite | ◻[Na2][Fe32+Fe23+]Si8O22(OH)2 |
| Fe | ⓘ Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Kasolite | Pb(UO2)(SiO4) · H2O |
| Th | Thorium | |
| Th | ⓘ Ekanite | Ca2ThSi8O20 |
| Th | ⓘ Thorite | Th(SiO4) |
| Th | ⓘ Thorite var. Uranothorite | (Th,U)SiO4 |
| U | Uranium | |
| U | ⓘ Brannerite | UTi2O6 |
| U | ⓘ Coffinite | U(SiO4) · nH2O |
| U | ⓘ Kasolite | Pb(UO2)(SiO4) · H2O |
| U | ⓘ Uraninite var. Pitchblende | UO2 |
| U | ⓘ Uraninite | UO2 |
| U | ⓘ Parauranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| U | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| U | ⓘ Thorite var. Uranothorite | (Th,U)SiO4 |
Localities in this Region
- Mayo-Kebbi Est Region
- Mayo Kebi granite
Other Regions, Features and Areas containing this locality
AfricaContinent
African PlateTectonic Plate
- Central African Rift basinBasin
- Sahara Metacraton
- Tshiluba ProvinceBack-arc Basin
Central AfricaRegion
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References
[1]Olivier, Vanderhaeghe, André-Mayer, Anne-Sylvie, Diondoh, Mbaguedje, Aurélien, Eglinger, Maryse, Ohnenstetter, Moussa, Isseini, Michel, Cuney, Marc, Poujol, Marieke, Van Lichtervelde (2021) Uranium mineralization associated with late magmatic ductile to brittle deformation and Na–Ca metasomatism of the Pan-African A-type Zabili syntectonic pluton (Mayo-Kebbi massif, SW Chad) Mineralium Deposita, 56 (7) 1297-1319 doi:10.1007/s00126-020-00999-1