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Palynology and ichnology in the determination of Cretaceous-Tertiary unconformity contact in southwestern Venezuela and their impact in hidrocarbons exploration. Palynological results from the southwest of Venezuela are given. The material comes from two wells drilled in Barinas state. Integration of results from analyses of marine and terrestrial palynomorphs, and ichnofacies, allows to determine the Maastrichtian-middle Eocene unconformity in well #1 at 9901´5´´ by the presence of Foveotriletes margaritae (Van der Hammen) Germeraad, Hopping & Muller, peridinioid dinocysts and the Glossifungites ichnofacies. In well # 2, the unconformity was established by the presence of F. margaritae, Ariadnaesporites Potonie and Buttinia andreevi Boltenhagen at 10154´6´´.

revista del museo argentino de ciencias naturales

Palynology and ichnology in the determination of Cretaceous-Tertiary unconformity contact in southwestern Venezuela and their impact in hidrocarbons exploration