The ocean floor is constantly being recycled by tectonic forces
In short: Watch how the Earth continuously regenerates its own surface. This video explains the cycle of oceanic crust, from its birth at mid-ocean ridges to its eventual destruction in deep seafloor trenches.
Tectonic processes ensure that the ocean floor is not a static environment but a dynamic system of creation and destruction. New oceanic crust is formed at mid-ocean ridges, where it begins a journey moving away from the ridge over millions of years.
The cycle concludes when this older crust reaches seafloor trenches, where it is destroyed. This continuous movement and recycling shape the geological features of our planet's underwater landscape.
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Sources
- Summary by Intellect · source: Plate tectonics and the ocean floor | Middle school Earth and space science | Khan Academy
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