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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 ...
Humans have been present in the Canadian Maritime provinces for 10,600 years. In spite of being the first part of Canada to be settled by Europeans, research into the prehistory of the Maritimes did not become extensive until 1969. By the early 1980s, several full-time archaeologists focused on the region. [1]
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.
After the end of the Younger Dryas, the Laurentide Ice Sheet retreated rapidly to the north, becoming limited to only the Canadian Shield until even it became deglaciated. [7] The ultimate collapse of the Laurentide Ice Sheet is also suspected to have influenced European agriculture indirectly through the rise of global sea levels.
Baltic Shield, part of the East European Craton; Fennoscandian Shield, the exposed Northwestern part of the Baltic Shield in Norway, Sweden and Finland (3.1 Ga) Karelian Craton, part of the Fennoscandian Shield in Southeast Finland and Karelia Russia, (3.4 Ga) Kola Craton, part of the Fennoscandian Shield, Kola Peninsula, Northwest Russia
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]
The Trans-Hudson orogeny or Trans-Hudsonian orogeny was the major mountain building event that formed the Precambrian Canadian Shield and the North American Craton (also called Laurentia), forging the initial North American continent.
The basin is located on the Canadian Shield in the city of Greater Sudbury, Ontario. The former municipalities of Rayside-Balfour, Valley East and Capreol lie within the Sudbury Basin, which is referred to locally as "The Valley". The urban core of the former city of Sudbury lies on the southern outskirts of the basin.