Where: Nunavut, Canada (75.9° N, 94.6° W: paleocoordinates 2.8° S, 25.8° W)
• coordinate based on political unit
• outcrop-level geographic resolution
When: Sunderland River Formation, Lochkovian (419.2 - 410.8 Ma)
• formation-level stratigraphic resolution
Environment/lithology: submarine fan; silty, sandy limestone and calcareous shale
• "Throughout much if not all of the Archipelago, the boundary between the Silurian and Devonian Systems, as presently defined, is transitional and not represented by a hiatus. Moreover, the S-D boundary is represented in contrasting facies: graptolitic, shelly, redbeds, and flysch deposits. The graptolitic rocks occur in outer parts of the Franklinian Geosyncline, and are exposed on Melville, Bathurst, Cornwallis, Baillie Hamilton, Devon and Ellesmere Islands. The shelly facies occurs in inner parts of the F.G. and on the adjoining Arctic Platform, and is exposed on Victoria, Stefansson, Cornwallis, Devon and Ellesmere Islands. The redbeds crop out in the environs of a prominent cratonic uplift (Boothia Uplift) on Cornwallis and Prince of Wales Islands. Outcrops of the flysch deposits are confined to northern Ellesmere Island."
• [Lithology based on illustrated section.]
Collection methods: I have combined collecting levels 6, 18, 119, 132, 163, and 198 m above base of section.
Primary reference: J. W. Kerr, D. J. McLaren, and R. Thorsteinsson. 1977. Canadian Arctic Archipelago. In A. Martinsson (ed.), The Silurian-Devonian boundary (IUGS, Series A, Number 5) 281-288 [M. Foote/M. Foote/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 14025: authorized by Michael Foote, entered by Michael Foote on 08.05.2002
Creative Commons license: CC BY (attribution)
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