Albian to Turonian stratigraphy and palaeoenvironmental history of the northern Western Interior Sea in the Peel Plateau Region, Northwest Territories, Canada

• Published in: Palaeogeography, Palaeoclimatology, Palaeoecology
• Main Authors: Thomson, D. (Danielle), Schroder-Adams, C. (Claudia), Hadlari, T. (Thomas), Dix, G. (George), Davis, W.J. (William J.)
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2011
• Subjects: Biostratigraphy; Cretaceous; Foraminifera; Geochronology; Northwest territories canada; Sedimentology; Arctic; Northwest Territories; Canada; Hume River; Foraminifera*
• Online Access: https://ir.library.carleton.ca/pub/23371; https://doi.org/10.1016/j.palaeo.2011.01.017

Cretaceous sediments in the Northern Interior Plains are widespread and their interbasinal lithostratigraphic correlations indicate several regional unconformities that require biostratigraphic confirmation. This study proposes a new zonation based on benthic foraminifera utilising the reference section for the Albian to Turonian Arctic Red and Trevor formations located along the Hume River in the Peel Plateau region (Northwest Territories). A new absolute age date of 107.0 ± 1.9. Ma from a bentonite extends the biostratigraphic range of the Early Albian Quadrimorphina albertensis Zone into the Middle Albian. Integration of the new temporal framework with detailed sedimentological observations provides an interpretation of the dynamic depositional history for this northern region of the Western Interior Seaway (WIS). Cretaceous strata in the Peel Plateau record deposition of the initial transgression of the WIS in two pulses of relative sea-level rise (