Biega Complex, Kabare Territory, South Kivu, DR Congoi
| Regional Level Types | |
|---|---|
| Biega Complex | Complex |
| Kabare Territory | Territory |
| South Kivu | Province |
| DR Congo | Country |
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Latitude & Longitude (WGS84):
2° 22' South , 28° 40' East
Latitude & Longitude (decimal):
Type:
Age:
515 ± 13 to 501 ± 13 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.
Köppen climate type:
Mindat Locality ID:
406279
Long-form identifier:
mindat:1:2:406279:3
GUID (UUID V4):
7b1c2155-4187-40d3-953c-6db356a6cb10
Complex consists of an intrusive suite of granites and syenites which are partly overlain by volcanic rocks. The complex is intruded into Precambrian metamorphic rocks of the Kibaran and Burundian systems. It is about 9 x 4 km, elongated N-S and with a line of volcanic hills along the full length of the eastern margin.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
3 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 DiagramDetailed Mineral List:
| ⓘ 'Amphibole Supergroup' Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 References: |
| ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 References: |
| ⓘ Augite var. Ferroaugite References: |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 References: |
| ⓘ 'Clinopyroxene Subgroup' References: |
| ⓘ Fayalite Formula: Fe2+2SiO4 References: |
| ⓘ 'Feldspar Group' References: |
| ⓘ 'Hornblende Root Name Group' Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
| ⓘ Katophorite Formula: {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2 References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Fayalite | 9.AC.05 | Fe2+2SiO4 |
| ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | var. Ferroaugite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Katophorite | 9.DE.20 | {Na}{CaNa}{Mg4Al}[(AlSi7)O22](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' | - | |
| ⓘ | 'Clinopyroxene Subgroup' | - | |
| ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
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 | ⓘ Katophorite | {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2 |
| H | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| O | Oxygen | |
| O | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Fayalite | Fe22+SiO4 |
| O | ⓘ Katophorite | {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2 |
| O | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(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 | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Na | Sodium | |
| Na | ⓘ Katophorite | {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘ Katophorite | {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2 |
| Al | Aluminium | |
| Al | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Katophorite | {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2 |
| Al | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Si | Silicon | |
| Si | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Fayalite | Fe22+SiO4 |
| Si | ⓘ Katophorite | {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2 |
| Si | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Cl | Chlorine | |
| Cl | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Cl | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| K | Potassium | |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ca | Calcium | |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Katophorite | {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2 |
| Ca | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(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 |
| Fe | Iron | |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Fayalite | Fe22+SiO4 |
Other Regions, Features and Areas containing this locality
Africa
- East African Rift System (EARS)Zone (Tectonic)
- Albertine RiftZone (Tectonic)
African PlateTectonic Plate
Central AfricaRegion
DR Congo
- ⭔KivuRegion
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References
