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Interior Plains Geography

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The Interior Plains stretches from the Arctic Ocean almost to the Gulf of Mexico, the Plains are often covered by shallow seas within the land. Sediments from the Canadian Shield and also the rocky mountains were collected in the seas in the Plains over millions of years, eventually the sediments were compressed by weight of layers above to become sedimentary rock. Parts of the rock deposited in the area consists of coral reefs that formed close to the surface of the seas in the Palaeozoic era. Today, the reefs are thousand of metres below the surface of the land, they contain much of the oil and gas found in Alberta and Saskatchewan. The Interior Plains is covered by various types of grasses which means it is great for farming and great habitat for animals. …show more content…

The overall land of the Interior Plains slopes gently downwards from the west to the east. Below the surface of the Interior Plains are mineral deposits, the swamps that are on the edge of the ancients seas that once covered Saskatchewan produced plants that were eventually changed to coal which is mined today. A lot of the Interior Plains is marked up by glaciations, the glaciers left deposits that produced rounded, gently rolling landscape. The glaciers melted water formed a large lake, when the land rose the water from the ancient lake drained into the ocean and what is left of that large ancient lake are smaller lakes known as lake Winnipeg, Manitoba, Winnipegosis , and Cedar

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