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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 ...
The earliest part of the shield is metamorphosed Archean rocks, originally volcanic in origin. Numerous terranes were accreted onto this Archean core during the Proterozoic to form the Canadian Shield. [4] The southern Archean province is the Superior Craton, it is formed by the combination of a greenstone-granite and a gneiss terrane. [5]
The conference was named the ECAC Metro Conference when it was established in 1981. The original eleven member schools were Fairleigh Dickinson University, the Brooklyn campus of Long Island University (whose athletic program has now merged with that of LIU's Post campus into a single athletic program), Loyola College in Maryland (left in 1989), Marist College (left in 1997), Robert Morris ...
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The Laurentide ice sheet (LIS) was a massive sheet of ice that covered millions of square miles, including most of Canada and a large portion of the Northern United States, multiple times during the Quaternary glaciation epochs, from 2.58 million years ago to the present.
The terms "northern Canada" or "the North" may be used in contrast with the far north, which may refer to the Canadian Arctic, the portion of Canada that lies north of the Arctic Circle, east of Alaska and west of Greenland. However, in many other uses the two areas are treated as a single unit.
These form the east-northeast trend of the belt and are overlain by metamorphosed sedimentary rocks. They were created during several volcanic episodes involving a variety of eruptive styles ranging from passive lava eruptions to viscous explosive eruptions. Part of the Canadian Shield, the TGB contains some of the oldest known rocks on Earth.
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.