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Canadian Shield


 

The Canadian Shield is a large craton in eastern and central Canada and adjacent portions of the United States, composed of bare rock dating to the Precambrian Era (between 4.5 billion and 540 million years ago). It is also called the Precambrian Shield, or Laurentian Shield, or Laurentian Plateau.

Related Topics:
Craton - Canada - United States - Rock - Precambrian - Era

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