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what is the canadian shield

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The shield is mostly thin soil lying on top of bedrock, with many bare outcrops and thousands of lakes. The Canadian Shield is Canada's largest physiographic region, which stretches in a U-shaped pattern from the north-east of the Northwest Territories, down south through the Province of Ontario, and back up to the northern regions of Quebec. Products include Health Canada licensed reusable PPE face shields, reusable cloth masks, ASTM rated disposable masks and more. The Canadian Shield constitutes the largest mass of exposed Precambrian rock on the face of Earth. Our team will be reviewing your submission and get back to you with any further questions. The Canadian Shield The Canadian Shield is the principal area of North America where rocks of Precambrian age (i.e., those that are more than 542 million years old) are exposed at the surface. In addition to the thousands of small lakes throughout the Shield, the region also borders many of the larger lakes and waterways of Canada: the eastern shores of Great Bear Lake, Great Slave Lake, Lake Athabasca and Lake Winnipeg; the northern shores of Lake of the Woods, Lake Superior and Lake Huron; and the north shore of the St. Lawrence River. The Canadian Shield is a plateau that covers approximately half of Canada, as well as most of Greenland and a portion of the northern United States. This shield extends all the way up to the Arctic Ocean. , Ontario, in 1903. The Canadian boreal forest is the northernmost and most abundant of the three forest areas in Quebec that straddle the Canadian Shield and the upper lowlands of the province. Instead the region is made up of high, flat land called plateaus which are surrounded by mountains or cliffs. b. The During this glaciation, the Shield was covered by the Laurentide Ice Sheet, a giant expanse of ice as much as 3 km thick. Around the same time, silver was discovered near Cobalt, Ontario, in 1903. He canadian shield or canary , also known as the Labrador Massif or English Shield in English, is an almost circular horseshoe-shaped region that is composed of exposed Precambrian rock, and extending at least 8 million square kilometers or 3 million square miles. The Canadian shield spreads from Quebec all the way to Alberta, so you pretty much do anything you want in Canada while your in the Canadian shield! The First Jobs In the Canadian Shield The fur trade was an important industry for over 200 years in this region, it is a large part of why people came here in the first place (that, and trying to map North America and find routes from one ocean to the other). The Canadian Shield is the largest geographic land location in Canada that consists of rock from the Precambrian era. The Canadian Shield is the ancient core of the North American Continent. While at times a barrier to settlement, the Shield has also yielded great resources, including minerals, coniferous forests and the capacity for hydroelectric developments. Other evidence of past glacial structures include striations (lines scraped into rocks) and drumlins (long hills of glacial sediment). When these crustal plates collide they may weld together, forming larger landmasses. Nick Eyles and Andrew Miall, Canada Rocks: The Geologic Journey (2007). North of this region, the Superior Province is one of Canada’s most important sources of metals, including deposits of, . Kimberlites — formations where diamonds can be located — are scattered throughout the Shield, with the largest deposit located near Lac de Gras, Northwest Territories, about 300 km northeast of Yellowknife. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Canada’s largest iron ore deposit, however, is known as the Labrador Trough or New Québec Orogen, and runs in a strip through northeastern Québec and western Labrador. The Canadian Shield is rich in natural resources, including minerals, forests and freshwater. The Canadian Shield, likewise called the Laurentian Plateau, is an expansive territory of uncovered Precambrian volcanic and high-review metamorphic rocks (topographical shield) that structures the old land center of the North American mainland. In places the old mountain ranges may be recognized by hills several hundreds of metres in height. The Canadian Shield is a plateau that covers approximately half of Canada, as well as most of Greenland and a portion of the northern United States. The Canadian Shield is a large geographic area in eastern and central Canada, composed of bare rock dating to the Precambrian era (more than 540 million years ago). Our editors will review what you’ve submitted and determine whether to revise the article. Map depicting the extent of the Canadian Shield in North America. Other birds include boreal. Omissions? Updates? Each is home to rock of different ages, types and formation characteristics, as well as different mineral deposits. Moving north into the tundra, wildlife, like vegetation, becomes increasingly sparse. Lakes and rivers in the south house a variety of fish species including, . Metals mined here include copper, nickel, gold and palladium. This area completely surrounds the Hudson's Bay in the shape of a horseshoe. and the Superior Highlands. Three major bodies of water in this region are Lake Athabasca, Reindeer Lake, and part of Lake Superior. some browsers). Choosing what kind of PPE face mask is right for your context can be challenging. Let us know if you have suggestions to improve this article (requires login). Deciduous trees include red and mountain maple; white and paper birch; trembling aspen; black ash; and balsam poplar. North of this region, the Superior Province is one of Canada’s most important sources of metals, including deposits of copper, gold, iron and silver. In addition to fish, lakes are often spotted with a mix of waterfowl including wood ducks, Canada geese and American black ducks. Corrections? The most recent glaciation to affect the area was the Wisconsin glaciation that began around 110,000 years ago. Canadian Shield The Canadian Shield is a large geographic area in eastern and central Canada , composed of bare rock dating to the Precambrian era (more than 540 million years ago). Bastedo, J.,, & James-Abra, E., Canadian Shield (2017). Common coniferous trees include white and black spruce; jack, red, white and eastern white pine; balsam fir; tamarack; eastern hemlock; and eastern red cedar. Other evidence of past glacial structures include striations (lines scraped into rocks) and, ecosystem. The first modern hard-rock mine in the Canadian Shield, near Madoc, Ontario, opened in 1866 after gold was found there. The Bear province includes deposits of copper and, , while the Slave province is being explored and mined for. Mining began in the region in the mid-19th century and was key to Canada’s economic development. Covering more than half of Canada, it also includes most of Greenland and extends into the United States as the Adirondack Mts. Canadian Shield synonyms, Canadian Shield pronunciation, Canadian Shield translation, English dictionary definition of Canadian Shield. The Shield can be divided into seven geologically distinct regions sometimes referred to as provinces. The Northern part gets very little rain and snow each year. Outdoor activities: Mountain climbing Playing in the snow Swimming by yourself or with some beluga whales Fishing Camping Hiking Hunting The average temperature in the winter is -18*C. In The Canadian Shield’s most notable physical features are thousands of small lakes, thin layers of soil and rolling hills. The Canadian Shield is the traditional territory of several Indigenous peoples. The Southern Province, for example, is home to the mining district of, , Ontario, known for its production of copper and nickel. and the Superior Highlands. Lakes are largely the result of glacial erosion during the last ice age. It is hot and rainy. Learn vocabulary, terms, and more with flashcards, games, and other study tools. It … Like weather, as glaciers grow and move they also smooth the landscape, as well as move sediment. Animals in the Arctic portion of the Shield include polar bears, Arctic fox, Arctic hares, snowy owls and rock ptarmigan. The Canadian Shield is the principal area of North America where rocks of Precambrian age (i.e., those that are more than 542 million years old) are exposed at the surface. As the ice retreated from the southern part of present-day Canada — a process that began as recently as 11,000 years ago — it cut the basins of the Great Lakes as well as the thousands of lakes throughout 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 (geological shield) that forms the ancient geological core of the North American continent (the North American Craton or Laurentia). Shaped like a great “V,” with Hudson Bay in the center, the Canadian Shield comprises some 1,850,000 square miles (4,790,000 square kilometers). It was the first part of North America to be permanently above sea level, and the rest of the North American continent formed around it. 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