Question

Would the oldest rock on Earth be in the middle of continents

Answer 1

Yes, the oldest rocks on Earth are generally found in the middle of continents, specifically in areas known as cratons or shields. Cratons are stable portions of the continental crust that have remained relatively unchanged for billions of years. The oldest rocks, such as those found in the Acasta Gneiss in Canada and the Nuvvuagittuq Greenstone Belt, are typically located in these stable regions, away from the tectonic activity found at plate boundaries, which can lead to younger rock formations.

In summary, while not exclusively, the oldest rocks are often associated with the interior of continents due to their geological stability over long periods.