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Articles

Vol 19 No 1 (1983)

On the Tremadoc-Arenig and Lower-Upper Tremadoc boundries in the Bell Island Group, Conception Bay, eastern Newfoundland

DOI
https://doi.org/10.4138/1561
Submitted
October 27, 2006
Published
January 1, 1983

Abstract

The Cambro-Ordovlcian ichnostratigraphic paradigm developed in England and Wales and successfully applied to coaval sequences in southwest Europe and the Mediterranean region is applied to the Ordoviclan Bell Island Group, Conception Bay, eastern Newfoundland. Its application enables a more accurate definition of the Tremadoc-Arenig boundary than previous studies have permitted and is the first attempt to define the Lower-Upper Tremadoc boundary within the Bell Island Group. It is suggested that both boundaries fall within the Beach Formation, the former at 1200 m within the succession and the latter at 1020 m. R᳧SUM᳧ On applique au Groupe de Bell Island (Ordovicien, Bale de Conception) le modᳺle ichnostratigraphique d᳻velopp᳻ pour le Cambro-Ordoviclen d'Angleterre et du Pays de Galles et utilis᳻ avec succᳺs sur des s᳻quences contemptraines d'Europe du sudouest et de la r᳻gion m᳻diterran᳻ans. Ceci per-met de d᳻finir la frontlire entre le Tr᳻madoc et l'Arenlg de fa᳹on plus exacte que lors d'᳻tudes ant᳻rieures. On tente aussi de d᳻finir pour la premiᳺre fois la frontiᳺre sᳺparant le Tr᳻madoc inf᳻rieur du Tr᳻madoc sup᳻rieur ᳲ l'int᳻rieur du Groupe de Bell Island. On suggᳺre que les deux llmites se trouvent dans la Formation de Beach, la premiᳺre ᳻tant situ᳻e ᳲ 1200 m dans la succession et la seconde ᳲ 1020 m. [Traduit par le journal]