Cantari Shale Fm
Period:
Cambrian
Age Interval:
middle Cambrian
Province:
Senegal Basin
Type Locality and Naming
Synonym: Cantari Shale, Cantari Fm
References: Brownfield and Charpentier, 2003
[Fig. 1. Generalized map of the central and southern parts of the Senegal Basin showing part of the Senegal Province, the Mauritania, Northern, and Casamance subbasins, the Mesozoic carbonate platform edge, the northern and southern salt basins, the Mauritanide Mountains, the Bové Basin, Deep Sea Drilling Project sites 367 and 368, the 2-second sediment isopach, and the onshore depth to basement isopachs (Brownfield and Charpentier, 2003)]
[Fig. 2: Generalized stratigraphic column for the Northern subbasin and the southern part of the Mauritania subbasins (Brownfield and Charpentier, 2003).]
Lithology and Thickness
The Cantari Shale is about 500m thick and is made up of shale. It is part of the pre-rift units of the Senegal Basin (Brownfield and Charpentier, 2003). The Cambrian sedimentary section is as much as 1,250 m thick and contains three units: the Pirada Shale, the Cantari Shale, and the Caium Sandstone.
Lithology Pattern:
Claystone
Relationships and Distribution
Lower contact
Pirada Shale Fm (conformable)
Upper contact
Caium Sandstone Fm (conformable)
Regional extent
Senegal Province, Mauritania, Senegal, The Gambia, and Guinea-Bissau, Northwest Africa
GeoJSON
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Fossils
Age
middle Cambrian
Age Span:
Beginning stage:
Cambrian Stage 3
Fraction up in beginning stage:
0.00
Beginning date (Ma):
521.00
Ending stage:
Guzhangian
Fraction up in the ending stage:
1.0
Ending date (Ma):
497.00
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Enam O. Obiosio, Solomon Joshua Avong, Henry Nasir Suleiman, Rebecca Bobick (and Wen Du), modified from Brownfield, M.E. and Charpentier, R.R., 2003. "Assessment of the Undiscovered Oil and Gas of the Senegal Province, Mauritania, Senegal, The Gambia, and Guinea-Bissau, Northwest Africa", U.S. Geological Survey Bulletin 2207-A, 1-26.