GEOG 2OC3 Lecture Notes - Lecture 1: Canadian Shield, Biome, Paleozoic
19 Oct 2020
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Document Summary
Physiographic region: an area with distinct surface landforms (geomorphology) and underlying bedrock structure (geology) Geomorphology: the study of landforms and the processes of their genesis. Harden out in the open (termed extrusive) Harden deep in the ground (termed intrusive) Distinguished from each other by chemical composition and cooling characteristics. Metamorphic rock: altered chemically and physically by either great pressures, heat or both. Often formed deep beneath the earth"s surface. Sedimentary rock: made from sediments (or particles) of other existing rocks. Often carried long distances and are eroded over time to form small sediment particles that then become cemented together once again. Canada has seven physiographic regions, these regions are the product of the three forces that created the north american continent. Cordillera: region lies at canada"s westernmost edge and contain approx. Comprised by ranges of mountains (such as the rockies), plateaus and valleys that are aligned north-south along the western coast.
