Affiliation:
1. Geological Survey of Canada (Calgary), Natural Resources Canada, 3303 33rd Street NW, Calgary, Alberta, Canada T2L 2A7
Abstract
AbstractThe Mackenzie–Peel Platform Tectono-Sedimentary Element (TSE), and the overlying Ellesmerian Foreland TSE, consist of Cambrian–Early Carboniferous shelf and slope sedimentary deposits in Canada's northern Interior Plains. In this chapter, these elements are combined into the Mackenzie–Ellesmerian Composite TSE. The history of the area includes early extensional faulting and subsidence in the Mackenzie Trough, passive-margin deposition across the Mackenzie–Peel Platform, local uplift and erosion along the Keele Arch, subsidence and deposition in the Ellesmerian Foreland, possible minor folding during the Ellesmerian Orogeny, and folding and faulting in Cretaceous–Eocene time associated with the development of the Canadian Cordillera. Recorded petroleum discoveries are within Cambrian sandstone (Mount Clark Formation), Devonian carbonate strata (Ramparts and Fort Norman formations) and Devonian shale (Canol Formation). Additional oil and gas shows are documented from Cambrian–Silurian carbonate units (Franklin Mountain and Mount Kindle formations), Devonian carbonate units (Arnica, Landry and Bear Rock formations) and Late Devonian–Early Carboniferous siliciclastic units (Imperial and Tuttle formations). Petroleum exploration activity within the area has occurred in several phases since 1920, most of it associated with the one producing oilfield at Norman Wells.
Funder
Ministry of Natural Resources
Publisher
Geological Society of London
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