Caium Sandstone Fm
Period:
Cambrian
Age Interval:
upper Cambrian
Province:
Senegal Basin
Type Locality and Naming
Synonym: Caium Sandstone, Caium 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 Caium Sandstone is part if the pre-rift units, and forms the transitional units from the underlying Cambrian shales of the Pirada and Cantari formations. It is made up of sandstones and is estimated to be about 400m thick (Brownfield and Charpentier, 2003)..
Lithology Pattern:
Sandstone
Relationships and Distribution
Lower contact
Cantari Shale Fm (conformable)
Upper contact
Gabu Sandstone Fm (conformable)
Regional extent
Senegal Province, Mauritania, Senegal, The Gambia, and Guinea-Bissau, Northwest Africa
GeoJSON
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Fossils
Age
upper Cambrian
Age Span:
Beginning stage:
Paibian
Fraction up in beginning stage:
0.00
Beginning date (Ma):
497.00
Ending stage:
Tremadocian
Fraction up in the ending stage:
0.0
Ending date (Ma):
486.85
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.