Abstract
The scenery and landforms of the Thunder Bay region result from a varied bedrock geology, particularly notable being the flat-topped mountain features of the Sleeping Giant, Mt. McKay and others, resulting from the intrusion of the Logan diabase sill into the Precambrian shales and sandstones of the Animikie formation. There are no Palaeozoic or younger rocks other than Pleistocene glacial sediments. The region has a complex glacial history, having been affected by three ice lobes approaching from different directions in the most recent glaciation. The chapter reviews the geological and glacial history of the region and singles out five notable landforms for detailed discussion, each of which can be easily accessed by interested visitors.
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Zaniewski, K., Phillips, B., Dean, F. (2020). Northwestern Ontario: The Thunder Bay Region. In: Slaymaker, O., Catto, N. (eds) Landscapes and Landforms of Eastern Canada. World Geomorphological Landscapes. Springer, Cham. https://doi.org/10.1007/978-3-030-35137-3_6
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