Includes Upper Mixtite Formation
Period:
Cryogenian
Age Interval:
635–650 Ma
Province:
West Congo Basin / Bas-Congo region, DRC
Type Locality and Naming
Lithology and Thickness
diamictites, mixtites: poorly sorted mud-supported conglomerates with angular and rounded clasts. Marinoan glaciation. Thickness: ≤ 150 m.
Lithology Pattern:
Glacial till
Relationships and Distribution
Lower contact
Underlain by the Sh8 Fm.
Upper contact
Overlain by the C1 (Dolomies Roses) Fm.
Regional extent
West Congo Belt (DRC, Republic of Congo, Gabon, NW Angola).
GeoJSON
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Fossils
Age
Anchor age: Marinoan glaciation (~650–635 Ma). Correlated to Ghaub Formation (Namibia).
Age Span:
Beginning stage:
Ediacaran
Fraction up in beginning stage:
0.00
Beginning date (Ma):
635.00
Ending stage:
Cryogenian
Fraction up in the ending stage:
0.82
Ending date (Ma):
650.30
Depositional setting
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.