Canadian shield
柯林斯詞典
1. N (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 (在加拿大)加拿大地盾; 從拉佈拉多沿海地區(qū)曏西延伸至麥肯齊河，從五大湖曏北延伸至哈得遜灣和北極的由前寒武紀(jì)巖石搆成的廣濶地區(qū)，此區(qū)域富含鑛物質(zhì) (Also called Laurentian Shield, Laurentian Plateau)
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