The shield holds great hydroelectric potential, especially along its southern edge where local relief is most abrupt. The kimberlite pipes in which the diamonds are found are closely associated with cratons, which provide the deep lithospheric mantle required to stabilize diamond as a mineral. Throughout the Shield there are many mining towns extracting these minerals. The North American craton is the bedrock forming the heart of the North American continent and the Canadian Shield is the largest exposed part of the craton's bedrock. By far the largest of Canada’s physiographic regions, the Canadian Shield (sometimes called the Precambrian Shield) occupies about half of the total area of the country and is centred on Hudson Bay. The Canadian Shield constitutes the largest mass of exposed Precambrian rock on the face of Earth. It is the Earth's greatest area of exposed Archean rock. The physical region called the Canadian Shield _____.
The Canadian Shield constitutes the largest mass of exposed Precambrian rock on the face of Earth. The Ekati and Diavik mines are actively mining kimberlite diamonds. Many of Canada's major ore deposits are associated with Precambrian volcanoes. Access is a critical issue, especially for extractive industries like mining and lumbering that depend heavily on overland transport. The Hudson's Bay Company created a trade monopoly across the region and laid the basis for a network of extractive industries. The Canadian Shield’s most notable physical features are thousands of small lakes, thin layers of soil and rolling hills.
Settlements today are mostly small, widely dispersed, have narrowly based economies based on extractive industries such as mining, and are controlled largely by the urban-industrial core to the south. Our editors will review what you’ve submitted and determine whether to revise the article. The range's highest peak is Nunavut's Barbeau Peak at 2,616 metres (8,583 ft) above sea level. The Canadian Shield is more than 3.96 billion years old. The Shield was originally an area of very large, very tall mountains (about 12,000 m or 39,000 ft) with much volcanic activity, but over hundreds of millions of years, the area has been eroded to its current topographicappe… A huge inland sea called Hudson Bay extends into the heart of Canada, and wrapped around this bay is a rocky region called the Canadian Shield. The shield is largely devoid of soil and dotted by hundreds of thousands of swamps, lakes, rivers, and streams. The Flin Flon greenstone belt in central Manitoba and east-central Saskatchewan "is one of the largest Paleoproterozoic volcanic-hosted massive sulfide (VMS) districts in the world, containing 27 copper-zinc-(gold) deposits from which more than 183 million tonnes of sulfide have been mined."[17].
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