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What is the region where oceanic lithosphere sinks into the asthenosphere?
Wiki User
∙ 10y ago
deep ocean trenches
Wiki User
∙ 15y ago
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Why does oceanic lithosphere sink at subduction zones but not at mid ocean ridges?
oceanic lithosphere sinks at subduction zones but not at mid ocean ridges because at subduction zones the oceanic lithosphere is subducted, or sinks, under another plate. Oceanic Lithosphere sinks at subduction zones which are usually at convergent boundaries, but at mid-ocean ridges the plates are actually separating not coming together
Differences between oceanic-oceanic and oceanic-continental subduction boundary?
Oceanic to oceanic- one plate sinks under the other Oceanic- Continental ocean crust sinks under the other
What happens when an oceanic plate collides with a continental plate and sinks?
When the oceanic plate sinks it is absorbed back into the magma.
What happen to oceanic crust at deep ocean trench?
At a deep oceanic trench the marine tectonic plate (oceanic crust) is carried (the word is subducted) beneath another tectonic plate (usually but not always - continental crust) and it sinks hundreds of miles into the Earth's Mantle. The cold wet oceanic crust is heated as it sinks and remelts to form magmas which come up 'landward' of the trench forming a string of volcanoes (an island arc). As all the margins of the Pacific Ocean are being subducted the volcanes formed are called the 'fiery ring of the pacific'. See the related links below.
What happens when oceanic crust sinks?
It turns into magma
What is slabpull?
Slab Pull Force occurs when a denser oceanic plate is forced beneath a less dense continental plate or oceanic plate in a process called subduction. It's the force caused by suction of the cold dense lithosphere into the asthenosphere at destructive margins. Basically, because lithosphere is denser than asthenosphere, there is gravitational imbalance which is passed on to the crust. this causes the lithosphere to be sucked inwards at the oceanic trenches into deep asthenosphere.
Why does oceanic lithosphere sinks beneath continental lithosphere at convergent boundaries?
As odd as it is to think of things this way, continental lithosphere is more buoyant than oceanic lithosphere. The oceanic lithosphere is more dense.
Why does oceanic lithosphere sink at subduction but not at mid ocean ridges?
oceanic lithosphere sinks at subduction zones but not at mid ocean ridges because at subduction zones the oceanic lithosphere is subducted, or sinks, under another plate. Oceanic Lithosphere sinks at subduction zones which are usually at convergent boundaries, but at mid-ocean ridges the plates are actually separating not coming together
How are ridge and slab pull related to convection in Earths mantle?
they are related because they all have to do with the oceanic lithosphere.The convection causes the lithosphere to move sideways and away from the midocean ridges.The ridge push makes the oceanic lithosphere slide downhill under the force of gravity. The slab pull:the old lithosphere is denser than asthenosphere so, the edge of the tectonic plates that contains oceanic lithosphere sinks and plls the rest of the tectonic plate.
Why does oceanic lithosphere sink at subduction zones but not at mid ocean ridges?
oceanic lithosphere sinks at subduction zones but not at mid ocean ridges because at subduction zones the oceanic lithosphere is subducted, or sinks, under another plate. Oceanic Lithosphere sinks at subduction zones which are usually at convergent boundaries, but at mid-ocean ridges the plates are actually separating not coming together
How are ridge push and and slab pull related to convection in earths mantle?
they are related because they all have to do with the oceanic lithosphere.The convection causes the lithosphere to move sideways and away from the midocean ridges.The ridge push makes the oceanic lithosphere slide downhill under the force of gravity. The slab pull:the old lithosphere is denser than asthenosphere so, the edge of the tectonic plates that contains oceanic lithosphere sinks and plls the rest of the tectonic plate.
Differences between oceanic-oceanic and oceanic-continental subduction boundary?
Oceanic to oceanic- one plate sinks under the other Oceanic- Continental ocean crust sinks under the other
What happens to an oceanic plate as it pushes against a continental plate and sinks?
The oceanic plate sinks into the mantle where it melts. This is replaced by new oceanic plate at the mid-oceanic ridge.
What happens when an oceanic plate collides with a continental plate and sinks?
When the oceanic plate sinks it is absorbed back into the magma.
What happens at oceanic-oceanic subduction?
The plate with cooler, denser crust sinks under the other plate, forming a trench. There, the oceanic crust sinks down back into the mantle.
What happens at an oceanic- oceanic subduction?
The plate with cooler, denser crust sinks under the other plate, forming a trench. There, the oceanic crust sinks down back into the mantle.
What happen to oceanic crust at deep ocean trench?
At a deep oceanic trench the marine tectonic plate (oceanic crust) is carried (the word is subducted) beneath another tectonic plate (usually but not always - continental crust) and it sinks hundreds of miles into the Earth's Mantle. The cold wet oceanic crust is heated as it sinks and remelts to form magmas which come up 'landward' of the trench forming a string of volcanoes (an island arc). As all the margins of the Pacific Ocean are being subducted the volcanes formed are called the 'fiery ring of the pacific'. See the related links below.
