GEOG 162 Lecture 2: Canada's Physical Base
8 Dec 2017
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Document Summary
There are 3 principle types of landforms: mountains, plateaus, valleys. Sedimentary: pre-existing rock particles formed mud at the bottom of bodies of water, which eventually hardened into rock due to immense pressure. Metamorphic: igneous or sedimentary rocks transformed by tremendous pressures and high temp. (ie. lava) Canada has 7 physiographic regions: canadian shield (precambrian era, largest physiographic region in- almost half of canada, greatest amount of glacial erosion and deposition, rich in mineral resouces. Each region has a different geological structure and it"s own topography: different energy and mineral resources have shaped regional economies, glaciation radically altered the geography of canada and created different challenges and opportunities for human activity. Main features of canada include it"s northern location and its large longitudinal and latitudinal extent. Canada"s climate is the product of three dominant factors: solar energy/latitude, global circulation system, winds, air masses, and ocean currents, marine and continental location.
