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Bangu and Niari Conglomerate Formation
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Bangu and Niari Conglomerate Fm base reconstruction

Bangu and Niari Conglomerate Fm


Period: 
Ediacaran

Age Interval: 
570–571 Ma


Province: 
West Congo Basin / Bas-Congo region, DRC

Type Locality and Naming

Synonym:

Reference section:


Lithology and Thickness

conglomerate with limestone & chert clasts, and interbedded red shale Thickness: ≤ 40 m.


Lithology Pattern: 
Aus conglomerate


Relationships and Distribution

Lower contact

Underlain by the Mpioka s.s. (upper) Fm.

Upper contact

Overlain by the Vampa Fm.

Regional extent

West Congo Belt (DRC, Republic of Congo, Gabon, NW Angola).


GeoJSON

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Fossils


Age 

Mpioka shown as Late Ediacaran on Figure → Interpolated by thickness, ca. 75% up in Ediacaran as estimated base

Age Span: 

    Beginning stage: 
Ediacaran

    Fraction up in beginning stage: 
0.67

    Beginning date (Ma): 
570.55

    Ending stage: 
Ediacaran

    Fraction up in the ending stage: 
0.66

    Ending date (Ma):  
571.51

Depositional setting

Siliciclastic proximal marine deposition interrupted by some continental episodes; late-orogenic molasse-type foreland basin (Tack et al., 2001; Frimmel et al., 2006).


Depositional pattern:  


Additional Information


Compiler:  

Cailteux, J.L.H., Delpomdor, F.R.A., & Ngoie Ndobani, J.-P. (2015). The Neoproterozoic West-Congo 'Schisto-Calcaire' sedimentary succession from the Bas-Congo region (Democratic Republic of the Congo) in the frame of regional tentative correlations. Geologica Belgica, 18/2-4, 126–146.