Le passage Ordovicien–Silurien et la partie inférieure du Silurien (Sud-Est du Massif armoricain, France)

Autor: Jean Le Menn, Hubert Lardeux, José Manuel Piçarra, Florentin Paris, Rémy Gourvennec, Tomás Oliveira, Zélia Pereira, Ahmed Bourahrouh, M. Robardet
Rok vydání: 2002
Předmět:
Zdroj: Comptes Rendus Geoscience. 334:1177-1183
ISSN: 1631-0713
DOI: 10.1016/s1631-0713(02)01864-3
Popis: A new section in the Silurian graptolitic ‘phtanites’ (black cherts) of Les Fresnaies at Chalonnes-sur-Loire (SE Armorican Massif) shows for the first time that these rocks (1) succeed conformably to Uppermost Ordovician (Hirnantian) glaciomarine deposits and (2) contain successive graptolite assemblages that characterise the base of the Silurian, the whole Rhuddanian and Aeronian stages and the lower part of the Telychian. To cite this article: J.M. Picarra et al., C. R. Geoscience 334 (2002) 1177–1183.
Databáze: OpenAIRE