Data/hora: 03/06/2024 09:57:21

Provedor de dados: | 5
País: | France
Título: | Observations sur les microfaciès des roches sédimentaires prélevées sur la marge armoricaine
Autores: | Pastouret, Léo; Auffret, Gérard-andré.
Data: | 1976-06
Ano: | 1976
Palavras-chave: | Histoire Ifremer.
Resumo: | The study of the rock and sediment dredgings carried out on the Armorican margin between 47 and 48° latitude North enables us to precise this latter's paleogeographical and tectonic evolution and to integrate it to the Bay of Biscay's. The microfacies analysis of the rock samples dating back from the Upper Jurassic to the Neogene era demonstrates: - on the one hand, the belonging of the northern edge of the Armorican margin to the Mesogean domain, at least up to the Mid-Cretaceous period; - on the other hand, the persistence of a carbonated platform regime which seems to operate from the Tithonian to the lower Tertiary phase, and on which reef could grow, especially in the Mid-Cretaceous period. Over the whole period, sedimentation compensated for subsidence; - lastly, the increase of subsidence from the Eocene period (accompanied with a decrease in the calcium production?) which is most probably related to the major tectonic phenomena that affected the southern edge of the European plate at that time.
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/1976/publication-5100.pdf
Editor: | Institut Francais du Pétrole
Relação: | http://archimer.ifremer.fr/doc/00000/5100/
Formato: | application/pdf
Fonte: | Revue de l'Institut Francais du Pétrole (Institut Francais du Pétrole), 1976-06 , Vol. 31 , N. 3 , P. 401-425
Fonte: | Institut Francais du Pétrole