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The uplifted sea floor results from convection currents which rise in the mantle as magma at a linear weakness in the oceanic crust, and emerge as lava, creating new crust upon cooling.

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Pearline Blick

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3y ago

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Hardens to form new rock at mid-ocean ridges?

Sea- Floor Spreading molten material erupts through the valley that runs along the center of some mid-ocean ridges. This material hardens to form the rock of the ocean floor. Mid-ocean ridges an undersea mountain chain where new ocean floor is produced.


Subduction occurs where the oceanic crust bends down toward the mantle at a(n)?

Seafloor spreading occurs along mid-ocean ridges. Mid-ocean ridges are large mountain ranges on the ocean floor. The shifting in the rock causes the seafloor to spread and allows magma to bubble and form more mountains on the ocean floor.


The youngest rocks on the ocean floor are located where?

The youngest rocks on the ocean floor are located at mid-ocean ridges. These ridges are always found at divergent boundaries.


What causes material to form at a mid-ocean ridge on the ocean floor?

New material forms on the ocean floor of the mid-ocean ridge due to plate tectonics and volcanic activity. Volcanic eruptions deposit cooled magma on the ocean floor.


What erupts through the valley of the mid ocean rig?

Magma erupts along mid ocean ridges forming new ocean floor. Mid ocean ridges are found at divergent boundaries where two ocean plates are pushing apart.


The youngest rocks in the ocean floor are located at the mid ocean?

Ridges


What causes openings in the surface of the earth?

The shifting of tectonic plates which cause sea-floor spreading which is located in mid-ocean ridges.


What are the three regions of the ocean floor?

the continental Margin, Ocean Basin Floor and Mid-Ocean ridge :D


What is the floor of the ocean called?

The floor of the ocean is called the seabed or ocean floor. It is made up of different features such as abyssal plains, trenches, ridges, and volcanoes.


What is the youngest material at the bottom of the ocean floor?

I'm assuming you're talking about the ocean floor itself (the earth's crust). The youngestmaterialat the bottom of the ocean is at the riffs between two plates. The mid-Atlantic riff is a good example.


What type of plate movement causes mid ocean ridges and sea floor spreading?

Divergent plate boundary movement causes mid-ocean ridges and sea-floor spreading. This occurs when two tectonic plates move away from each other, creating new oceanic crust at the boundary. Magma rises to the surface, solidifies, and forms undersea mountain ranges known as mid-ocean ridges.


Why is the ocean floor lower as you move away from the mid-ocan ridges?

The mid-ocean ridges which wrap around the ocean floor like the seam of a baseball, are high topographic features-but as you go away from either side of a ridge, the ocean floor subsides as it cools.