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Oued Samene Formation
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Oued Samene Fm base reconstruction

Oued Samene Fm

Period: 
Devonian

Age Interval: 
Lochkovian – Emsian.


Province: 
Ahnet Basin, Mouydir Basin

Type Locality and Naming

SW Algeria. It is well exposed at Oued Samene (Wendt et al., 2006).

Synonym: Dkhissa Fm (usage in Reggane Basin). Les Gres d'Idjorane Fm (local facies variant in its lower part in the Ahnet Basin)

References: Perron et al., 2019.


Lithology and Thickness

The Oued Samene Formation is made up of massive sandstone, and it is laterally equivalent to the upward succession of the Zemlet Fm, Saheb El Djir Fm, and Dhkissa Fm of the Reganne Basin (Perron et al., 2019).


Lithology Pattern: 
Sandstone


Relationships and Distribution

Lower contact

It unconformably overlies the Zone de Passage Fm

Upper contact

It is unconformably overlain by the Adrar Morrat Fm

Regional extent

SW Algeria. 75,000 Km2


GeoJSON

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Fossils


Age 


Age Span: 

    Beginning stage: 
Lochkovian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
419.00

    Ending stage: 
Emsian

    Fraction up in the ending stage: 
0.4

    Ending date (Ma):  
404.03

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Enam O. Obiosio, Solomon Joshua Avong and Henry Nasir Suleiman (2024) - Stratigraphic Lexicon compiled from the following books:

Wendt J., Kaufmann B., Belka Z., Korn D (2008): Carboniferous Stratigraphy and Depositional Environments in the Ahnet Mouydir Area (Algerian Sahara). In: Facies. DOI 10.1007/s10347-008-0176-y

Wendt J., Kaufmann B., Belka Z., Klug C. & Lubeseder S. (2006): Sedimentary evolution of a Palaeozoic basin and ridge system: the Middle and Upper Devonian of the Ahnet and Mouydir (Algerian Sahara). Geol. Mag. 143 (3) pp. 269–299. doi:10.1017/S0016756806001737

Derder M, E.M., Henry B., Amenna M., Bayou B., Djellit H., Guemache M. A., Hemmi A. (2009): New structural implications for the central Sahara (Algeria), from the revisited Upper Carboniferous “Hassi Bachir” Formation: Paleomagnetic constraints. Tectonophysics, 463: pp.69–76.

Perron P., Guiraud M., Vennin E., Moretti I., Portier E., L. Le Pourhiet, M. Konaté (2018): Influence of basement heterogeneity on the architecture of low subsidence rate Paleozoic intracratonic basins (Reggane, Ahnet, Mouydir and Illizi basins, Hoggar Massif). Solid Earth, 9: pp.1239-1275.