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Canadian Shield


What do Shields Tell Us About Earth's History?--Phenomenon Explained


The Canadian Shield: North America ( Part-I)


Canadian Shield | Wikipedia audio article


Canadian Shield


Geological Journey - Diamonds in The Canadian Shield

The Canadian Shield, also called the Laurentian Plateau, or Bouclier canadien (French), is a large area of exposed Precambrian igneous and high-grade metamorphic rocks that forms the ancient geological core of the North American continent. Composed of igneous rock resulting from its long volcanic history, the area is covered by a thin layer of soil. With a deep, common, joined bedrock region in eastern and central Canada, it stretches north from the Great Lakes to the Arctic Ocean, covering over half of Canada; it also extends south into the northern reaches of the United States. Human population is sparse, and industrial development is minimal, while mining is prevalent.
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