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The Canadian Shield is a collage of Archean plates and accreted juvenile arc terranes and sedimentary basins of the Proterozoic Eon that were progressively amalgamated during the interval 2.45–1.24 Ga, with the most substantial growth period occurring during the Trans-Hudson orogeny, between c. 1.90–1.80 Ga. [5] The Canadian Shield was the ...
It is part of the larger Mackenzie Large Igneous Province and is one of more than three dozen dike swarms in various parts of the Canadian Shield. The Mackenzie dike swarm is the largest dike swarm known on Earth , [ 1 ] more than 500 km (310 mi) wide and 3,000 km (1,900 mi) long, extending in a northwesterly direction across the whole of ...
Tectonic and magmatic features associated with the Mackenzie Large Igneous Province. Red star shows the initial Mackenzie plume zone relative to the lithosphere; partial black circle is the estimate of the zone of plume influence on stress-field orientation; dark lines are dikes of the Mackenzie swarm; CRB indicates the Coppermine River basalts; M indicates the Muskox intrusion.
Forest cover percentage of Canadian provinces and territories. The forests of Canada are located across much of the country. Approximately half of Canada is covered by forest, totaling around 2.4 million km 2 (0.93 million sq mi). [1] Over 90% of Canada's forests are owned by the public (Crown land and Provincial forest).
So far, there have been 4,024 wildfires across Canada, scorching more than 23.5 million acres, according to the Canadian Interagency Forest Fire Centre. That already exceeds the record of 18.7 ...
The Canadian Shield has been divided up into seven areas based on differences in orogenic history. The Labrador portion of Newfoundland and Labrador forms the eastern region of the Canadian Shield, which hosts the entire Nain structural province, as well as some of the Superior, Churchill and Greenville provinces. [1]
Much of the landscape, including the Athabasca Plain, is the boreal forest that covers so much of Canada at this latitude, consisting of black spruce (Picea mariana), jack pine (Pinus banksiana), quaking aspen (Populus tremuloides), white birch (Betula papyrifera), balsam poplars, white spruce (Picea glauca), and balsam fir (Abies balsamea).
The Churchill Craton is the northwest section of the Canadian Shield and stretches from southern Saskatchewan and Alberta to northern Nunavut. It has a very complex geological history punctuated by at least seven distinct regional tectono metamorphic intervals, including many discrete accretionary magmatic events.