Sedimentology and tectonic history of the Eureka Sound and Beaufort formations, southern Ellesmere Island, Arctic, Canada ...

• Main Author: Riediger, Cynthia Louise
• Format: Text
• Language: English
• Published: University of British Columbia 2010
• Subjects: Arctic Archipelago; Arctic; Canadian Arctic Archipelago; Ellesmere Island; Eureka Sound; sverdrup basin
• Online Access: https://dx.doi.org/10.14288/1.0052796; https://doi.library.ubc.ca/10.14288/1.0052796

The Eureka Sound Formation in the eastern Canadian Arctic Archipelago is an Upper Cretaceous to Paleogene pre- and syn-tectonic deposit that records the uplift and segmentation of the Early Carboniferous to Tertiary Sverdrup Basin. Scattered outliers of the Eureka Sound Formation on southern Ellesmere Island rest unconformably on or are faulted against Devonian strata. In the vicinity of Vendom, Stenkul, Baumann and Sor Fiords, the Eureka Sound Formation attains a maximum thickness of 480 m and comprises a sequence of nonmarine and brackish water deposits that ranges in age from mid-Paleocene to Late Eocene. Eureka Sound strata which crop out along the shores of Stenkul Fiord are divided into four lithofacies assemblages. The stratigraphic section is composed mainly of two nonmarine assemblages which alternate throughout the sequence. Lithofacies Assemblage I consists of fining-upward sandstones which attain thicknesses of 20 m and are interpreted as fluvial deposits. Lithofacies Assemblage II comprises ...