Cusselinta Sandstone Fm
Period:
Devonian
Age Interval:
Early to Middle Devonian
Province:
Senegal Basin
Type Locality and Naming
Synonym: Cusselinta Sandstone, Cusselinta 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 Lower Devonian consists of the Cusselinta Sandstone, a 150-m-thick unit of sandstone, that is one of the pre-rift units of the Senegal Basin
Lithology Pattern:
Sandstone
Relationships and Distribution
Lower contact
Buba Shale Fm (conformable)
Upper contact
Transitions conformably into the Bafata Shale Fm
Regional extent
Senegal Province, Mauritania, Senegal, The Gambia, and Guinea-Bissau, Northwest Africa
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[-17.78,22.85],[-17.27,22.83],[-16.61,22.77],[-16.26,22.7],[-16.51,21.78],[-16.1,21.53],[-16.08,20.98],[-15.36,20.16],[-14.12,18.91],[-13.34,17.94],[-13.71,17.32],[-13.18,16.63],[-13.28,15.95],[-12.62,14.69],[-12.62,13.65],[-13.04,12.95],[-13.55,12.66],[-14.54,12.5],[-15.05,12.07],[-15.15,11.59],[-14.9,11.26],[-14.97,10.14],[-15.32,9],[-16.36,9.09],[-17.58,9.35],[-17.88,9.5],[-17.58,10.73],[-17.8,12.09],[-17.97,14.06],[-18.09,14.74],[-17.86,15.58],[-17.47,15.8],[-17.35,16.21],[-17.18,17.8],[-17.72,18.86],[-18.64,20.42],[-18.33,21.18],[-17.78,22.85]]]]}}
Fossils
Age
Age Span:
Beginning stage:
Lochkovian
Fraction up in beginning stage:
0
Beginning date (Ma):
419.00
Ending stage:
Emsian
Fraction up in the ending stage:
1.0
Ending date (Ma):
394.30
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.