The age of material on a tectonic plate depends in part on what type of crust it is composed of.
tends to be younger because it is continually produced at the
and then recycled. On the other hand,
tends to be older because it can often remain intact for longer periods.
The age of material on an oceanic tectonic plate depends in part on what type of crust it is composed of. Oceanic crust tends to be younger because it is continually produced at the mid-ocean ridges through volcanic activity and then recycled through subduction zones. On the other hand, continental crust tends to be older because it can often remain intact for longer periods without being recycled.
