The oceans floor doesn't just keep getting wider instead the ocean floor plunges into deep underwater canyons called deepocean trenches.Where ever deep ocean trenches are there is subduction.
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The succession of waves is called a tsunami.
A tidal wave is caused by an earthquake.
its called KARST TOPOGRAPHY
Valles Marineris is a massive canyon system that runs along the Martian equator. At over 4,000 km long, 200 km wide and about 7 km deep, it is larger than any of Earth's canyons, and is the largest known canyon in the solar system.See link for more information
a fault
deep sea canyons
what happens is the ocean floor does not just keep spreading.instead, it sinks beneath deep underwater canyons called deep- ocean trenches
Trenches
No, there are canyons in cold places and underwater.
At deep-ocean trenches, subduction allows part of the ocean floor to sink back into the mantle. The ocean floor does not just keep spreading. Instead, it sinks beneath deep underwater canyons called deep-ocean trenches. Where there are trenches, subduction takes place.
At deep-ocean trenches, subduction allows part of the ocean floor to sink back into the mantle. The ocean floor does not just keep spreading. Instead, it sinks beneath deep underwater canyons called deep-ocean trenches. Where there are trenches, subduction takes place.
submarine canyons
good stuff
deep canyons
There are more than one term for a deep narrow valley. Glens, canyons, ravines, fjords are terms you could use.
Water
yeah, it's called tyopholosis, and it's a crippling fear of deep underwater spaces. I HAVE IT!