Canadian shield

基本解释

List four important minerals found in the Canadian Shield?
列出四种可在加拿大地盾内发现的重要矿物?
Why is the Canadian Shield important to Canada's economy?
为何加拿大地盾对加拿大的经济那么重要?
Rocks, trees and lakes abound in the Canadian Shield area of Ontario.
安大略的加拿大地盾区有大量的岩石、树木和湖泊。
Where is the Canadian Shield The Canadian Shield is in northern Canada. Part of it is in northern Quebec and Ontario.
加拿大护盾在何处位於加拿大北部,部分位於魁北克省北部和安大略省。
Where is the Canadian ShieldThe Canadian Shield is in northern Canada. Part of it is in northern Quebec and Ontario.
加拿大护盾在何处位于加拿大北部;部分位于魁北克省北部和安大略省.

(in Canada) the wide area of Precambrian rock extending west from the Labrador coast to the basin of the Mackenzie and north from the Great Lakes to Hudson Bay and the Arctic: rich in minerals (Also called Laurentian Shield, Laurentian Plateau)