Formal definition of the Lower Jurassic McCoy Brook Formation, Fundy Rift Basin, eastern Canada

Auteurs-es

  • Lawrence H. Tanner Department of Geography and Earth Science, Bloomsburg University, Bloomsburg, Pennsylvania 17815, U.S.A

DOI :

https://doi.org/10.4138/2083

Résumé

The name McCoy Brook Formation, presently in informal use, is formally proposed to designate outcrops of Lower Jurassic (Hettangian-Pliensbachian) strata overlying the North Mountain Basalt in the structural Minas Subbasin of the Fundy Rift Basin. It is also proposed that this designation be extended to include stratigraphically equivalent strata beneath the Bay of Fundy throughout the entire Fundy Rift Basin. It is further recommended that use of the name Scots Bay Formation, the current designation for post-basalt Jurassic sediments outcropping on the south side of the Minas Subbasin, be discontinued. The name Scots Bay Member of the McCoy Brook Formation is used here to designate distinctive lacustrine strata at the base of the McCoy Brook Formation outcropping on both sides of the Minas Subbasin. RÉSUMÉ On propose officiellement le nom de Formation de McCoy Brook, qui est présentement utilise de manière officieuse, pour désigner les affleurements ou les strates du Jurassique inférieur (Hettangien-Pliensbachien) recouvrant le basalte du mont North dans le sous-bassin structurel Minas du bassin d'effondrement Fundy. Il est en outre proposé que l’on étende ce nom pour qu'il cnglobe les strates stratigraphiquement équivalentes sous la baie de Fundy dans l'ensemble du bassin d'effondrement Fundy. Il est par ailleurs recommandé que l'on cesse d'utiliser le nom de Formation de Scots Bay, nom actuel de l'affleurement de sédiments du Jurassique postérieur au basalte sur la rive sud du sous-bassin Minas. On utilise ici le nom de membre Scots Bay de la Formation de McCoy Brook pour désigner les strates lacustres caractéristiques à la base de l'affleurement de la Formation de McCoy Brook sur les deux rives du sous-basin Minas. [Traduit par la rédaction]

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Publié-e

1996-08-01

Comment citer

Tanner, L. H. (1996). Formal definition of the Lower Jurassic McCoy Brook Formation, Fundy Rift Basin, eastern Canada. Atlantic Geoscience, 32(2). https://doi.org/10.4138/2083

Numéro

Vol. 32 No. 2 (1996)

Rubrique

Articles

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