North Atlantic Craton

FIGURE 1.4 The distribution of Archaean rocks worldwide, showing the principal cratons and regions where the oldest rocks are preserved. Not all these areas contain exposed Archaean rocks, for some cratons are now partially covered by younger sediment, or have been reworked during later orogenic events. Not shown is the Archaean Enderby Land Craton in Antarctica. The dashed lines indicate the rocks of the North Atlantic Craton now separated by the creation of the Atlantic Ocean. 

Labrador (Fig. 1) contains sections of the Superior and North Atlantic Archean cratons, separated by a wide tract of Paleoproterozoic rocks assigned to the... 

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