How can/have plate tectonics influenced physical processes, phenomena and events in Canada?
Concerning geological history, the territory of Canada can be geographically divided into six regions based on their distinctive landscape: the Canadian Shield, Interior Platform, Appalachian Orogen, Innuitian Orogen, Cordillera and Western Canada Sedimentary Basin, the Eastern Continental Margin. The North American continent, where Canada takes the northern half, was constructed from continental fragments after plate tectonics more than 3 billion years ago. The existing east coast represents a ragged tear across the Appalachian Orogen, while some parts of this belt of rocks were left behind on the North American side, and the others were carried eastward, thus, now these rocks underlie Britain and Scandinavia. About 200 million years ago, margins subsided and became sites for the accumulation of thick sedimentary deposits. In places beneath the Grand Banks of Newfoundland, this process was followed by the generation, migration, and trapping of large amounts of oil.