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Kahusi Complex, Kalehe Territory, South Kivu, DR Congoi
Regional Level Types
Kahusi ComplexComplex
Kalehe TerritoryTerritory
South KivuProvince
DR CongoCountry

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Latitude & Longitude (WGS84):
2° 12' 0'' South , 28° 40' 59'' East
Latitude & Longitude (decimal):
Type:
Age:
493 ± 12 to 452 ± 11 Ma
Geologic Time:
Dating method:
K-Ar
Reference for age:
VELLUTINI, P., BONHOMME, M., CARON, J., KAMPUNZU, A., & LUBALA, T. (1981). ON THE TECTONIC SIGNIFICANCE OF THE ALKALINE ACIDIC COMPLEXES OF KAHUZI AND BIEGA (KIVU, ZAIRE). COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II, 292(14), 1027-1029.
Mindat Locality ID:
406277
Long-form identifier:
mindat:1:2:406277:9
GUID (UUID V4):
39d0c8ea-fac9-4a29-b45d-bb2fad012442


Complex comprises both intrusive and extrusive suites which occupy and area of about 9 x 9 km.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


6 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:
Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
References:
'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
References:
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
References:
Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
References:
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
References:
'Feldspar Group'
References:
'Mica Group var. Lepidomelane'
References:
Quartz
Formula: SiO2
References:
Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
References:
'Sodic amphibole'
References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 9 - Silicates
Aegirine9.DA.25NaFe3+Si2O6
Arfvedsonite9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Riebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Aenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
Annite9.EC.20KFe2+3(AlSi3O10)(OH)2
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
'Feldspar Group'-
'Mica Group
var. Lepidomelane'
-
'Sodic amphibole'-

List of minerals for each chemical element

HHydrogen
H Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H AnniteKFe32+(AlSi3O10)(OH)2
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 Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
OOxygen
O AegirineNaFe3+Si2O6
O AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
O Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O AnniteKFe32+(AlSi3O10)(OH)2
O Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O QuartzSiO2
O Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
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
NaSodium
Na AegirineNaFe3+Si2O6
Na AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Na Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Na Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
MgMagnesium
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 AnniteKFe32+(AlSi3O10)(OH)2
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
SiSilicon
Si AegirineNaFe3+Si2O6
Si AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Si Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si AnniteKFe32+(AlSi3O10)(OH)2
Si Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Si QuartzSiO2
Si Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
ClChlorine
Cl Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
K AnniteKFe32+(AlSi3O10)(OH)2
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
TiTitanium
Ti AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
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
FeIron
Fe AegirineNaFe3+Si2O6
Fe AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Fe AnniteKFe32+(AlSi3O10)(OH)2
Fe Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fe Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2

Geochronology

Mineralization age: Phanerozoic : 134 ± 7 Ma to 55 ± 3 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
   Eocene
ⓘ Riebeckite granite55 ± 3 Ma
    
  
 Mesozoic
  Cretaceous
   Early/Lower Cretaceous
ⓘ Quartz porphyry134 ± 7 Ma

Other Regions, Features and Areas containing this locality

Africa
African PlateTectonic Plate
DR Congo

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

 
Mineral and/or Locality  
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