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Major Canadian Major Canadian LandformsLandformsActivity Sheet – Answer Key and NotesA. BourgaizeSocial Studies 9
Canadian ShieldCanadian ShieldHow old is it?
◦4 billion years oldHow was it formed?
◦Active volcanoes, plains, mountains.◦Erosion (water and ice) and deposition
(plate movement) created thick rockWhat natural resources exist
here?◦Thin, acidic soils◦Some good farming land
Arctic LowlandsArctic LowlandsHow old is it?
◦Probably 2-4 billion years because worn down
How was it formed?◦Plateau and lowland plains – probably
through erosion/glaciationWhat natural resources exist here?◦Treeless◦Poorly drained soil◦Short growing season – lichen & moss
Innuitian MountainsInnuitian MountainsHow old is it?
◦Young, mesozoicHow was it formed?
◦Colliding plates (mountains)◦Not yet worn by erosion
What natural resources exist here?◦Too cold for trees
Western CordilleraWestern CordilleraHow old is it?
◦Young, cenozoicHow was it formed?
◦Plates collideWhat natural resources exist here?◦Valleys – good soils◦Delta – rich soils◦Forest (on west facing slopes)
Appalachian MountainsAppalachian MountainsHow old is it?
◦375 million years agoHow was it formed?
◦Mountains worn down by ice and water
What natural resources exist here?◦Deep, fertile soils◦Deciduous trees◦Coniferous trees in north
Interior PlainsInterior PlainsHow old is it?
◦Ranges: Paleozoic to CenozoicHow was it formed?
◦Inland seas receded◦erosion
What natural resources exist here?◦Sparse vegetation, cacti (southern
central)◦Deep soils (chernozem, 25cm deep,
black) – good for growing wheat
Great Lakes – St. Lawrence Great Lakes – St. Lawrence LowlandsLowlandsHow old is it?
◦Paleozoic How was it formed?
◦faulting◦Flooded by Champlain sea◦When retreated left clay and sand
leaving area level◦Erosion and deposition
What natural resources exist here?◦Brown earth – fertile soil
Hudson Bay Lowlands Hudson Bay Lowlands ***not ***not on sheet***on sheet***
How old is it?◦Paleozoic
How was it formed?◦Flat and poorly drained◦deposition
What natural resources exist here?◦Tundra◦Podzols◦Swamp forests
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