You would be most likely to find the oldest rocks on Earth in the middle of continents. Specifically, ancient rock formations are often located in the continental shields or cratons, where the crust has remained relatively stable over geological time. These areas can contain some of the oldest known rocks, such as those found in the Canadian Shield or the Acasta Gneiss in Canada, which is over 4 billion years old. In contrast, oceanic crust is continually being recycled at plate boundaries, and thus it tends to be much younger.
Where would you be most likely to find the oldest rocks on earth?
In the middle of the oceans
In the middle of Continents
In the middle of the highest mountains
At the outer edges of oceanic crust
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