Landforms
* Formation of Canada * Step 1: hot volcanoes were located where the North American Canadian area is located. * Step 2: erosion eroded away the tops of the volcanoes making them shorter * Step 3: more erosion literally combined the volcanoes into one mass of rocky land * Step 4: the mass of land is now a hard smooth plate, the Canadian Shield * Step 5: the Atlantic plate crashed into the east side of Canada and the area of subduction formed the Appalachian mountains * Step 6: erosion moved sand and dirt into the pacific ocean and the atlantic ocean * Step 7: the Pacific plate collided with the west side of Canada, forming the Rocky Mountains * Step 8: the water between the Rocky Mountains and the Canadian shield drained south forming the Interior Plains * Step 9: glaciers formed the Great Lakes
Canadian Shield – rich in rocks and very hard
Appalachian - old rock and minerals, worn down smooth
Western Cordilleras – rocky and mountainous fertile land for large trees
Interior Plains – Flat and fertile
Great Lakes – low and south but provides temperate climates
Plate Tectonics * Plate Movement * >< Convergence Divergence = Slipping and Sliding
Rock Cycle * Area of Subduction: an area of land forced upwards by the collision of another plate
Glaciers
* Form when ice is stored for a long time. * Alpine glacier formation: when the amount of water coming down is less than the amount of ice being collected * Continental glacier formation: when the area of land is relatively cold and less sunlight is hit * Snouts form and move dirt around creating new landforms * Oak ridges, great lakes formed by glaciers * Ice may be left behind and melts to form lakes * Erratics formed by scratching in glaciers against other rocks
Erosion
* Wind Erosion: Wind brings dirt and erodes land * Chemical Erosion: corrosive or liquids