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Buba Shale Formation
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Buba Shale Fm base reconstruction

Buba Shale Fm


Period: 
Silurian

Age Interval: 


Province: 
Senegal Basin

Type Locality and Naming

Synonym:


Lithology and Thickness

The Silurian section contains the graptolitic Buba Shale, which is as much as 400 m thick. Potential source rock.


Lithology Pattern: 
Claystone


Relationships and Distribution

Lower contact

Gabu Sandstone Fm Fm (conformable)

Upper contact

Cusselinta Sandstone Fm (conformable)

Regional extent

Senegal Province, Mauritania, Senegal, The Gambia, and Guinea-Bissau, Northwest Africa


GeoJSON

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Fossils


Age 


Age Span: 

    Beginning stage: 
Rhuddanian

    Fraction up in beginning stage: 
0

    Beginning date (Ma): 
443.07

    Ending stage: 
Lochkovian

    Fraction up in the ending stage: 
0

    Ending date (Ma):  
419.00

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Rebecca Bobick (and Wen Du), modified from Brownfield, M.E. and Charpentier, R.R., "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, posted online October 2003