List any five interesting facts about Canadian Shield, Great Lakes or Niagara Falls?
Answers
Answer:
1ans The Canadian Shield or Bouclier canadien (French), also called the Laurentian Plateau, is a large area of exposed Precambrian igneous and high-grade metamorphic rocks (geologic shield) that forms the ancient geologic core of the North American continent (the North American Craton or Laurentia). Glaciation has left the area only a thin layer of soil, through which the composition of igneous rock resulting from long volcanic history is frequently visible.[3] With a deep, common, joined bedrock region in eastern and central Canada, the Shield stretches north from the Great Lakes to the Arctic Ocean, covering over half of Canada and most of Greenland; it also extends south into the northern reaches of the United States. Human population is sparse and industrial development is minimal,[4] but mining is prevalent.
Canadian as
Stratigraphic range: Precambrian
Pha.ProterozoicArcheanHad'n
Type
Shield
Unit of
North American craton
Sub-units
Laurentian Upland
Kazan[1]
Area
8 000 000 km2[2]
Location
Region
North America
Country
Canada
United States
Greenland
Canada geological map.JPG
The Canadian Shield is a broad region of Precambrian rock (pictured in shades of red) that encircles Hudson Bay. It spans eastern, northeastern, and east-central Canada and the upper midwestern United States.
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