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it comes from oceanic crust

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In sea-floor spreading what happens to the old oceanic crust as new molten material rises from the mantle?

In sea-floor spreading, the old oceanic crust is pushed away from the mid-ocean ridge as new molten material rises from the mantle. As the new material solidifies, it forms new oceanic crust, leading to the spreading of the seafloor and the continuous creation of new crust. The older oceanic crust eventually gets subducted back into the mantle at tectonic plate boundaries.


New crust forms on the ocean floor due to what process?

New crust forms on the ocean floor through seafloor spreading, where magma rises up from the mantle through mid-ocean ridges and solidifies into new crust as tectonic plates move apart.


Are convergent boundaries and sea-floor spreading related in any way?

Yes, convergent boundaries and sea-floor spreading are related in the sense that sea-floor spreading can occur at divergent boundaries (where tectonic plates move apart), leading to the creation of new oceanic crust. This new oceanic crust can then be consumed at convergent boundaries (where tectonic plates collide), as one plate is subducted beneath the other.


Where does new crust come from in sea-floor spreading?

The ocean floors are crustal plates and move, carrying the continents along with them. This movement begins at a mid-ocean ridge. A ridge forms along a crack in the oceanic crust, where molten material is heated by the mantle and erupts. In this process, called sea-floor spreading, the sea floor spreads apart along both sides of a mid-ocean ridge as new crust is added. As a result, the ocean floors move like conveyor belts, carrying the continents along with them.


How do ocean ridges and deep-sea trenches support the theory of sea floor spreading?

Ocean ridges and deep-sea trenches support the theory of sea floor spreading through the process of plate tectonics. At ocean ridges, new oceanic crust is formed as magma rises and solidifies, pushing the existing crust apart. Deep-sea trenches are areas where old oceanic crust is being subducted back into the mantle, completing the cycle of sea floor spreading. This continuous movement of crust at ridges and trenches provides evidence for the theory of sea floor spreading and the movement of tectonic plates.

Related Questions

What process adds new crust to the ocean floor?

Volcanic eruptions are one process that adds new material to crust. Lava from the volcanoes eventually cool, forming new land. Sea floor spreading also adds new material to the crust.


What is this is the process of creating new oceanic crust?

Sea floor spreading


The process by which molten material adds new oceanic crust to the ocean floor?

DA ANSWER ISseafloor spreadingThe_process_by_which_molten_material_adds_new_oceanic_crust_to_the_ocean_floor_is_calledThe_process_by_which_molten_material_adds_new_oceanic_crust_to_the_ocean_floor_is_called


What is the process new crust formation called?

sea-floor spreading


What is a good sentence for sea floor spreading?

Sea floor spreading mean the process by which molten material adds new oceanic crust to the ocean floor


How does new oceanic crust from at a divergent plate boundary?

Sea-Floor Spreading is your answer.


What is the process that creates new ocean crust to form molten rock?

Sea Floor Spreading


Does sea floor spreading create or destroy new oceanic crust at mid ocean ridge?

Sea floor spreading creates new oceanic crust at mid-ocean ridges. Magma rises to the surface, cools, and solidifies to form new crust as tectonic plates move apart. This process contributes to the continuous expansion of the ocean floor.


What term describes the process that creates new oceanic crust at mid-ocean ridges?

Sea floor Spreading! -Lucy laboy Thanks that really helped alot.


How does sea floor spreading alter the shape of the ocean floor?

Sea floor spreading occurs when new oceanic crust is formed at mid-ocean ridges and pushes the existing crust apart. As the new crust cools and solidifies, it creates a symmetrical pattern where the ocean floor becomes wider. This process alters the shape of the ocean floor by creating a series of parallel ridges and valleys.


What is called when new crust forms where magma rises at mid ocean ridges?

sea floor spreading


The process of continually adds new crust to the ocean floor along both sides of the mid-ocean ridge.?

sea floor spreading