Density.
Older is usually denser.
convergent boundary
Convergent boundary...it's on my homework
Oceanic crust is created at mid-ocean ridges and (through the creation of new oceanic crust) is pushed toward a convergent plate boundary where it is subducted. So the oldest oceanic crust would be located at a convergent plate boundary where the oceanic crust is being subducted under continental crust.
The newer ocean crust is primarily found at mid-ocean ridges, where tectonic plates are diverging, allowing magma to rise and solidify, forming fresh crust. In contrast, the older ocean crust is typically located further away from these ridges, often subducted at convergent boundaries where it is recycled back into the mantle. This age gradient helps scientists understand plate tectonics and the dynamic processes of the Earth's lithosphere.
because the older crust is pushed out by the newer crust that is forming
Either plates gets subducted which is usually the older plate.
The older. and it should not different from the certificate of encumbrance.
A destructive plate boundary (usually a subduction zone).
Continental crust is far older than oceanic crust.
At a convergent boundary where two oceanic plates meet, the denser plate will typically subduct below the less dense plate. The denser plate is usually the older, cooler, and more compacted of the two plates.
This question can be answered by looking at the Mid Ocean Ridge. Being a mostly divergent boundary, the oceanic plates are pulling away due to tensional stress. One would assume this would leave a deep ocean trench as the plates pull away. This is not the case. As the plates pull away, igneous material (usually basalt) is produced upwards and immediately fills the void left by the separating plates. This new magma is at the very center of the Mid Ocean Ridge. The older magma that had been produced in this same method are on either side of this new material. As the plates pull apart, the old material is pulled with it. Gravity also pulls these older materials downward and away from the higher Mid Ocean Ridge.
When oceanic crust is still young, it's relatively warm. The older it gets, the colder it gets. The colder it gets, the less volume it takes in, however, it's still the same amount of matter. This causes a bigger density, thus causing the crust to sink deeper into the mantle.