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no that's wrong. they are formed when one lithospheric plate meets another and the denser plate subducts into the asthenosphere. the crust melts in the subduction zone and rises to form active volcanoes. The Andes in Peru and Chile formed this way

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12y ago
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13y ago

The tectonic plates diverge (move apart) causing rift valleys (deep sea trenches) to form.

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11y ago

The earths crust, tectonic plates, earthquake, volcanos, etc.

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10y ago

tectonic plates moving together.

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Q: How do ocean trenches form?
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Related questions

Where is an ocean trench most likely to form?

Ocean trenches form at areas of subduction.


What boundary does deep ocean trenches form at ----colliding or fracture?

Deep ocean trenches form at colliding boundaries.Source:Science / Earth Science by Scott Foresmanthe diamond editionscottforesman.comPearson


Are most volcanoes form on land?

nope, ocean trenches


What happens when continental and continental collide?

Deep ocean trenches form


What deep ocean feature form at subduction zones?

Trenches are deep ocean features of subduction zones.


How many trenches does the Atlantic ocean have?

there are three ocean trenches in the Atlantic Ocean


Where do ocean trenches occur?

At spreading centers.


Where do trenches form?

Treches are formed when an ocean plate subducts under a continental plate.


Where does the sediment on the abyssal plain come from?

It comes from sea mounts and ocean trenches.


What ocean has many deep valleys or trenches?

Trenches


Trenches are the deepest parts of the ocean floor which of the earth's four oceans hs the deepest trenches?

The Pacific Ocean has the deepest trenches.


Can an ocean trench become a volcanic island?

An ocean trench does not become a volcanic island, however volcanic islands often form near ocean trenches.