Late Pennsylvanian-Early Permian Stratigraphy, Sedimentology and Paleoceanography of the Sverdrup Basin, NW Ellesmere Island, Arctic Canada
Abstract
The Pennsylvanian-Early Permian carbonate succession of the Sverdrup Basin was studied in Otto Fiord, northwest Ellesmere Island. Seven sections containing shelf carbonates and slope mudrocks and chert were analyzed. The Gzhelian-Kungurian sequence stratigraphy of the basin was revisited based on microfacies analysis and field observations performed in these sections. Two new unconformity-bounded T-R sequences were defined: 1) Sakmarian: composed of the Raanes and contemporaneous Hare Fiord formations; and 2) Artinskian: formed by the Trappers Cove and the bulk of the Great Bear Cape formations. Furthermore, the warm- to cool-water transition in carbonate sedimentation in the basin was analyzed. Based on microfacies analysis of samples from the Nansen and Raanes formations the origin and timing of this shift in sedimentation was discussed. Global warming-enhanced upwelling in Panthalassa is here suggested to be the trigger for this transition. This global warming marks the end of the Late Palaeozoic Ice Age.
Description
Keywords
Geology
Citation
Calvo Gonzalez, D. (2016). Late Pennsylvanian-Early Permian Stratigraphy, Sedimentology and Paleoceanography of the Sverdrup Basin, NW Ellesmere Island, Arctic Canada (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/26731