Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/4089
Title: A possible tsunami deposit at the Cretaceous-Tertiary boundary in Pemambuco, northeastern Brazil.
Authors: Albertão, Gilberto Athayde
Martins Júnior, Paulo Pereira
Keywords: Permambuco - cretaceous tertiary
Issue Date: 1996
Citation: ALBERTÃO, G. A.; MARTINS JÚNIOR, P. P. A possible tsunami deposit at the Cretaceous-Tertiary boundary in Pemambuco, northeastern Brazil. Sedimentary Geology, v. 104, p. 189-201, 1996. Disponível em: <http://www.sciencedirect.com/science/article/pii/003707389500128X> . Acesso em: 07 out. 2014.
Abstract: Interdisciplinary 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 the base of the Maria Farinha Formation shows sedimentary characteristics and exotic (probably impact-derived) material which suggest the action of a tsunami wave. The distribution of iridium concentrations throughout the studied succession records a major peak of iridium (up to 69 times the background levels) at about 15-20 cm above the main tsunami bed.
URI: http://www.repositorio.ufop.br/handle/123456789/4089
metadata.dc.identifier.doi: https://doi.org/10.1016/0037-0738(95)00128-X
ISSN: 0037-0738
metadata.dc.rights.license: O periódico Sedimentary Geology concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3484320550286.
Appears in Collections:DEFAR - Artigos publicados em periódicos

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