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The Canadian Shield, also called the Laurentian Plateau is a large area of
exposed Precambrianigneous and high-grade metamorphic rocks (geological
shield) that forms the ancient geological core of the North American
continent . Composed of igneous rock resulting from its long volcanic history,
the area is covered by a thin layer of soil. With a deep, common,
joined bedrock region in eastern and central Canada, it stretches north from
the Great Lakes to the Arctic Ocean, covering over half of Canada; it also
extends south into the northern reaches of the United States.
Canadian Shield
Canadian Shied formation
The construction of the Shield involved the collision and build-up
of a large number of tectonic plates beginning more than 3 billion
years ago and was largely completed by about 800 million years
ago. The core of most of the world’s major continents was created
by the same plate-tectonic process. The Canadian Shield was
formed by a combination of plate tectonics, volcanic
eruptions, sedimentary deposits and erosion. It was the first
part of North America to be permanently above sea level,
and the rest of the North American continent formed around
economics it.
i. Stephen Marshak. Essentials of Geology. 3rd
ii. Tsuyoshi Iizuka, at al., Geology and Zircon
Geochronolgy of the Acasta Gneiss
Complex, Precambrian Research, 153 (2007)
pp. 179 – 208
iii. World Wildlife Fund (2001). “Northern
Canadian Shield taiga”. WildWorld Ecoregion
Profile. National Geographic Society. Archived
from the original on 2010-03-08.
iv. https://tackk.com/jzm15m
v. Clark, Bruce W. (1999). “Geologic
History”. Making Connections: Canada’s
geography. Scarborough, Ontario: Prentice Hall
Ginn Canada. p. 95. ISBN 0-13-012635-7.
What is canadian shield
The Canadian Shield is one of the world’s richest areas in terms
of mineral ores. It is filled with substantial deposits
of nickel, gold, silver, and copper. Throughout the Shield there
are many mining towns extracting these minerals. The largest,
and one of the best known, is Sudbury, Ontario. Sudbury is an
exception to the normal process of forming minerals in the
Shield since the Sudbury Basin is an ancient meteorite impact
The Canadian Shield is a large area that
consists of beautiful landscapes. Lots
of people already come to the Canadian
shield to canoe, hike, ski or snowboard
and enjoy nature. Since there are many
cities in the Canadian shield, tourists
can rest at nearby hotels if they are not
accustomed to sleeping outdoors. Or by
constructing small cabins near popular
attractions so that the tourists would
not have to leave their destination.