The Canadian Shield is
A) a low-lying region in Canada and the northeast United States where Archean and Proterozoic rocks of the North American craton are exposed.
B) the region in North America where Archean and Proterozoic rocks are covered by Phanerozoic sedimentary strata.
C) the belts of deformed continental crust of Phanerozoic age along the western margin of North America.
D) synonymous with "craton."

Question

Quizplus · Accepted Answer

The Canadian Shield is a vast geological shield covered by a thin layer of soil that forms the nucleus of the North American or Laurentian Craton, primarily composed of Archean and Proterozoic rocks, which are exposed in Canada and parts of the northeast United States. It is known for its ancient geological composition and is not covered extensively by Phanerozoic sediments, distinguishing it from other geological regions described in the other options.

The Canadian Shield Is