|
The physical geography of Canada comprises two great parts: the Shield and the Borderlands. The Shield consists of a core of old, massive, Precambrian crystalline rocks. The landscape of the Shield has been levelled by many long periods of erosion and presents an even, monotonous skyline interrupted by rounded or flat-topped summits and ranges of hills. The surface of the Shield is mainly the result of glaciation, and a great proportion of it is covered by water in the form of lakes, ponds and swamps. The most outstanding characteristic of the Shield is the similarity of the terrain, whether you are in Labrador, northern Quebec and Ontario, or the Northwest Territories.
The Shield is divided into five great regions:
Each of these five regions is divided by subareas, and each of these subareas has its own geological characteristics.
|
