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Trenches occur by diverging plate boundries and normally at about 11,000 meters deep. This includes sea floor spreading which is where a new layer of crust forms at the mid ocean ridge and the old crust falls into trenches

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Ocean trench occurs at what boundary?

Divergent boundaries.


What is a long deep steep depression in the sea floor where subduction occurs called?

A trench.


What change occurs as the submersible descends into the mariana trench?

marian trench gets more pressured because its air goes high and low beacause it is more big


SUbduction occurs where the oceanic crust bends down toward the mantle at a(an)?

deep ocean trench.


What type of landform occurs in seafloor spreading?

Mid-ocean ridges are the primary landform that occurs in seafloor spreading. These are underwater mountain ranges where tectonic plates are moving apart, allowing magma to rise up and form new oceanic crust.


What is the difference between a ocean trench and ocean abyss?

An abyss is intense cold, 0.6 C to 3.5 C, no light, and lots of pressure.A trench is a boundary between two lithospheric plates.


What geological formation often occurs where one plate subducts under another?

The geological formation that often occurs where one tectonic plate subducts under another is a trench.


What kind of plate boundary forms a deep sea trench?

A convergent plate boundary forms a deep sea trench. This occurs when two tectonic plates are pushed towards each other, causing one to subduct beneath the other, creating a trench in the ocean floor.


What type of plate boundary causes a trench to form?

A convergent plate boundary causes a trench to form. This occurs when two tectonic plates collide, with one plate sinking beneath the other due to its greater density. This process creates a deep trench in the Earth's crust.


What is another name for trench foot?

The correct name for "trench foot" is Immersion foot. This occurs when the feet are constantly kept wet for a prolonged period of time. An example of this was during World War One, where soldiers in the trenches would be stood most of the time in pools of water. This was also the origins of the name "trench foot".


What occurs when two plates collide and one of the plates dips below the other?

It is called subduction. When subduction occurs one plate slips beneath the other and sinks into the Earth's mantle and creates a trench.


Is subduction occuring at ridges or trenches?

Subduction occurs at trenches where one tectonic plate is forced underneath another plate. Ridges, on the other hand, are locations where tectonic plates are moving apart and new crust is being created.