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Tchouni-Zarniski Complexes, Zinder, Nigeri
Regional Level Types
Tchouni-Zarniski ComplexesGroup of Complexs
ZinderRegion
NigerCountry

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Latitude & Longitude (WGS84):
14° 7' 59'' North , 9° 34' 0'' East
Latitude & Longitude (decimal):
14.13333,9.56667
GeoHash:
G#: s4wb3syhx
GRN:
N10E07
Type:
Group of Complexs
Köppen climate type:
BWh : Hot deserts climate
Mindat Locality ID:
408486
Long-form identifier:
mindat:1:2:408486:3
GUID (UUID V4):
3b264565-3fac-434f-9faa-4e7e3632ae46


The complexes overlap. Zarniski is a well-developed ring-complex of granites and syenites, while the smaller Tchouni complex contains similar rock types together with some tuffs.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


12 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
ⓘ 'Allanite Group'
Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
References:
consequences. Bulletin de la Société géologique de France, 7(6), 941-953. doi.org/10.2113/gssgfbull.S7-XX.6.941
consequences. Bulletin de la Société géologique de France, 7(6), 941-953. doi.org/10.2113/gssgfbull.S7-XX.6.941
Black, R. (1963). Note sur les complexes annulaires de Tchoni-Zarniski et de Gouré (Niger). Bulletin du Bureau de recherches géologiques et minières, (1), 31-45.
Black, R. (1963). Note sur les complexes annulaires de Tchoni-Zarniski et de Gouré (Niger). Bulletin du Bureau de recherches géologiques et minières, (1), 31-45.
Karche, J. P., & Vachette, M. (1978). Age et migration de l'activite magmatique dans les complexes paleozoiques du Niger
Karche, J. P., & Vachette, M. (1978). Age et migration de l'activite magmatique dans les complexes paleozoiques du Niger
ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
References:
consequences. Bulletin de la Société géologique de France, 7(6), 941-953. doi.org/10.2113/gssgfbull.S7-XX.6.941
consequences. Bulletin de la Société géologique de France, 7(6), 941-953. doi.org/10.2113/gssgfbull.S7-XX.6.941
Black, R. (1963). Note sur les complexes annulaires de Tchoni-Zarniski et de Gouré (Niger). Bulletin du Bureau de recherches géologiques et minières, (1), 31-45.
Black, R. (1963). Note sur les complexes annulaires de Tchoni-Zarniski et de Gouré (Niger). Bulletin du Bureau de recherches géologiques et minières, (1), 31-45.
Karche, J. P., & Vachette, M. (1978). Age et migration de l'activite magmatique dans les complexes paleozoiques du Niger
Karche, J. P., & Vachette, M. (1978). Age et migration de l'activite magmatique dans les complexes paleozoiques du Niger
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ Cassiterite
Formula: SnO2
ⓘ Fayalite
Formula: Fe2+2SiO4
ⓘ 'Feldspar Group'
ⓘ 'Feldspar Group var. Perthite'
ⓘ Fluorite
Formula: CaF2
ⓘ Hedenbergite
Formula: CaFe2+Si2O6
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Quartz
Formula: SiO2
ⓘ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘ Zircon
Formula: Zr(SiO4)
References:
consequences. Bulletin de la Société géologique de France, 7(6), 941-953. doi.org/10.2113/gssgfbull.S7-XX.6.941
consequences. Bulletin de la Société géologique de France, 7(6), 941-953. doi.org/10.2113/gssgfbull.S7-XX.6.941
Black, R. (1963). Note sur les complexes annulaires de Tchoni-Zarniski et de Gouré (Niger). Bulletin du Bureau de recherches géologiques et minières, (1), 31-45.
Black, R. (1963). Note sur les complexes annulaires de Tchoni-Zarniski et de Gouré (Niger). Bulletin du Bureau de recherches géologiques et minières, (1), 31-45.
Karche, J. P., & Vachette, M. (1978). Age et migration de l'activite magmatique dans les complexes paleozoiques du Niger
Karche, J. P., & Vachette, M. (1978). Age et migration de l'activite magmatique dans les complexes paleozoiques du Niger

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘQuartz4.DA.05SiO2
ⓘCassiterite4.DB.05SnO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘFayalite9.AC.05Fe2+2SiO4
ⓘZircon9.AD.30Zr(SiO4)
ⓘHedenbergite9.DA.15CaFe2+Si2O6
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘRiebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Feldspar Group'-
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Feldspar Group
var. Perthite'		-
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)
ⓘ'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Hⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Hⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ CassiteriteSnO2
Oⓘ FayaliteFe22+SiO4
Oⓘ HedenbergiteCaFe2+Si2O6
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ QuartzSiO2
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ ZirconZr(SiO4)
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Oⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluoriteCaF2
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ FayaliteFe22+SiO4
Siⓘ HedenbergiteCaFe2+Si2O6
Siⓘ QuartzSiO2
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ ZirconZr(SiO4)
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ CalciteCaCO3
Caⓘ FluoriteCaF2
Caⓘ HedenbergiteCaFe2+Si2O6
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ IlmeniteFe2+TiO3
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ FayaliteFe22+SiO4
Feⓘ HedenbergiteCaFe2+Si2O6
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
ZrZirconium
Zrⓘ ZirconZr(SiO4)
SnTin
Snⓘ CassiteriteSnO2

Geochronology

Mineralization age: Carboniferous : 330 ± 3 Ma to 302 ± 9 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
 Paleozoic
  Carboniferous
   Pennsylvanian
ⓘ Granite302 ± 9 Ma
   Mississippian
ⓘ Syenite330 ± 3 Ma

Other Regions, Features and Areas containing this locality

African PlateTectonic Plate
West AfricaUN Subregion

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Black, R. (1963). Note sur les complexes annulaires de Tchoni-Zarniski et de Gouré (Niger). Bulletin du Bureau de recherches géologiques et minières, (1), 31-45.
Karche, J. P., & Vachette, M. (1978). Age et migration de l'activite magmatique dans les complexes paleozoiques du Niger; consequences. Bulletin de la Société géologique de France, 7(6), 941-953. doi.org/10.2113/gssgfbull.S7-XX.6.941
Woolley, A. R. (2001). Alkaline rocks and carbonatites of the world. Part 3: Africa. Geological Society. Natural History Museum, London, p. 228.
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