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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. The Canadian Shield (French: Bouclier canadien [buklje kanadjɛ̃]), also called the Laurentian Shield or the Laurentian Plateau, is a ...
This is a rugged rocky landscape including an area fjords on the Atlantic coast of Labrador. The hills and plateaus are dotted with many lakes and string bogs, and patches of tundra on the Mealy Mountains and elsewhere. This is a cold part of the world with average annual temperatures ranging from −6°C in Hudson Bay to 1°C on the Labrador ...
On a map showing only metamorphic rocks, the Canadian Shield forms a circular pattern north of the Great Lakes around Hudson Bay. The Canadian Shield is a large area of Archean through Proterozoic igneous and metamorphic rocks in eastern Canada and north central and northeastern United States.
Map of sub-arctic regions. Indigenous peoples of the Subarctic are the aboriginal peoples who live in the Subarctic regions of the Americas, Asia and Europe, located south of the true Arctic at about 50°N to 70°N latitude. This region includes the interior of Alaska, the Western Subarctic or western Canadian Shield and Mackenzie River ...
Labrador is the easternmost part of the Canadian Shield and is composed of ancient Precambrian igneous and metamorphic rocks. The interior averages about 450 metres (1,480 ft) above sea level and is cut by large, east-flowing rivers, such as the Churchill River and its tributaries. [11] The northern coast is largely mountainous.
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Four of the seven Canadian Shield provinces make up Labrador. Archean age rocks and east-west structural trends mark the Superior Province (a small area in the west near Quebec) which encompasses the Ashuanipi Complex granulite and granodiorite intruded by pyroxene-rich felsic plutons. The Nain Province runs along the northeast coast and also ...
The Taiga Shield Ecozone, as defined by the Commission for Environmental Cooperation (CEC), is an ecozone which stretches across Canada's subarctic region. Some regions exhibit exposed Precambrian bedrock of the Canadian Shield, the oldest of the world's geological formations. [1] The world's oldest rocks, dating to four billion years, are ...