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The Cretaceous-Tertiary boundary in the context of impact geology and sedimenta...
Martins Júnior, Paulo Pereira; Albertão, Gilberto Athayde; Hadad, Renato MoreiraThe question of the Cretaceous-Tertiary (K-T) boundary is here considered in a more wide sense, considering its importance for Impact Geology. The first two sub-principles of uniformitarianism can be seen as similar to the actualist principle and can be both merged with catastrophism as a renewed view of geosciences [as two principles in dialectical opposition for working with regime x rupture processes in Eart...
A possible tsunami deposit at the Cretaceous-Tertiary boundary in Pemambuco, no...
Albertão, Gilberto Athayde; Martins Júnior, Paulo PereiraInterdisciplinary and integrated investigations of a stratigraphic succession spanning the Cretaceous-Tertiary (K-T) boundary in Pemambuco (the Poty Quarry section, near Recife), northeastern Brazil, provides direct evidence for the hypothesis of an extraterrestrial bolide impact event. Discussions on the exact position of the K-T boundary point to na impact event in the earliest Danian. One particular bed at t...