Berriasian and Lower Valanginian calpionellids of northern Tunisia. Comparison with the associations of the external Rif chain (Morocco) Les associations des calpionelles du Berriasien et du Valanginien inférieur de la Tunisie septentrionale. Comparaison avec les associations du Rif externe (Maroc)

Ben Abdesselam-Mahdaoui, S. and Benzaggagh, M. and Razgallah, S. and Rebah, A. and Rakia, B. (2011) Berriasian and Lower Valanginian calpionellids of northern Tunisia. Comparison with the associations of the external Rif chain (Morocco) Les associations des calpionelles du Berriasien et du Valanginien inférieur de la Tunisie septentrionale. Comparaison avec les associations du Rif externe (Maroc). Comptes Rendus - Palevol, 10 (7). pp. 527-535.

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Abstract

The study of ten thin sections from outcrops from Lower Cretaceous deposits and several thin sections obtained from three petroleum wells, allow us to better characterize the associations of calpionellid zones and subzones of the Berriasian and Lower Valanginian in northern Tunisia. The B and C zones, respectively, show three and two levels with calpionellid associations corresponding to B1, B2, B3 and C1, C2 subzones. In the D zone, associations of the D1 and D2 subzones were identified. The E zone has been characterized for the first time in Tunisia and in southern-Tethyan margin of North Africa, on the basis of its index specie and associated species. © 2011 Académie des sciences.

Item Type:	Article
Uncontrolled Keywords:	Berriasian; comparative study; micropaleontology; nanofossil; oil well; outcrop; petroleum; Valanginian, Morocco; Rif; Tunisia, Codonellopsidae
Subjects:	Earth and Planetary Sciences
Divisions:	SCIENTIFIC PRODUCTION > Earth and Planetary Sciences
Depositing User:	Administrateur Eprints Administrateur Eprints
Last Modified:	31 Jan 2020 15:46
URI:	http://eprints.umi.ac.ma/id/eprint/2926

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