publications

Article

Discovery of organic-rich facies in the Upper Senonian of Tunisia, an indicator of anoxic conditions near the Cretaceous-Tertiary boundary

NEGRA Mohamed Hédi, MRABET Ali, 2016

Comptes Rendus de l'Académie des Sciences, 11, 312, 1033-1039, Juin 2016

Résumé

Sedimentological and geochemical study of Senonian Formations in Tunisia has led to discovery of Maastrichtian organic-rich facies. The latter contain up to 2.8% total organic carbon and have a medium petroleum potential (up to 5.9 kg of hydrocarbon compounds per tonne of rock). These facies, which have been deposited in a restricted depressed zone, may reflect an oceanic anoxic event near the Cretaceous-Tertiary boundary.