Unit Name: Bay Fiord Formation
Unit Type: Lithostratigraphic
Rank: Formation
Status: Formal
Usage: Currently in use
Age Interval: Chazyan - Blackriveran (464 - 459 ma)
Province/Territory: Nunavut
Originator: Kerr, 1967a.
Type Locality:
30 km north-northeast of the head of Irene Bay, Ellesmere Island.
Distribution:
Recognized from northeastern Ellesmere Island to eastern Melville Island with thicknesses ranging from 330 m to 1,100 m. In some areas on Bathurst and Melville Islands the formation is in excess of 2,000 m thick due to salt flowage.
Locality Data:
Thickness(m): Minimum 330, Maximum 1100.
Lithology:
Interbedded limestone, dolomite, siltstone, shale and anhydrite. Limestone units are often argillaceous and/or silty. On central and western Bathurst Island and eastern Melville Island thick units of halite occur within the formation. Three units are typically recognized across the Arctic Islands; a lower evaporite-bearing dolostone unit, a thin middle limestone unit with fossils and burrow mottling, and a poorly fossiliferous dolostone and limestone unit at the top.
Relationship:
Conformably overlies Eleanor River Formation and is conformably overlain by Thumb Mountain Formation.
References:
Kerr, J. Wm., 1967a. New nomenclature for Ordovician rock units of the eastern southern Queen Elizabeth Islands, Arctic Canada: Bulletin of Canadian Petroleum Geology, vol. 15, no. 1, pp. 91-113.
Source: CSPG Lexicon of Canadian Stratigraphy, Volume 1, Arctic Archigelage (District of Franklin); R.L. Christie, A.F. Embry, G.A. Van Dyck (editor)
Contributor: A.F. Embry; K. Dewing; J. Dixon
Entry Reviewed: Yes
Name Set: Lithostratigraphic Lexicon
LastChange: 29 Sep 2010