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New crust is formed along boundaries between tectonic plates which are moving apart. Most crust creation takes place on the ocean floor at the mid-ocean ridges. As the plates move apart, solidifying magma rises, filling fractures and openings created by the divergence. Some lava also spills out into the seawater, creating pillow basalts on the seafloor. The entirety of the oceanic crust has, and is, being created in this manner.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agomagma rises as a plate sinks into the mantle when it spreads to form new crust
Anonymous
Wiki User
∙ 11y agowhen molten material rise from the asthenosphere, cold ocean water cools the rock until it became solid
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Where is the new ocean crust formed?
mid-ocean ridge
Does theory continental drift state that new ocean crust is formed at ocean ridges and destroyed at deep sea trenches?
No, the theory is that Seafloor spreading state that the new ocean crust is formed at ocean ridges and is destroyed at deep sea trenches.
How can the ocean crust be different ages?
On geologic time scales, new oceanic crust is constantly being formed ad mid-ocean ridges while older crust is destroyed at subduction zones. The crust forms at the ridge and is carried away by the movement of the plate as new crust forms to take its place. The oceanic crust is youngest new a mid ocean ridge and oldest far away from it.
How does magma form?
Magma can be formed from the subduction and melting of cold, dense, wet oceanic crust at some convergent plate margins. The moisture in the rock assists in the melting of the crust and the rock surrounding it. Magma is also formed at hot spots in the mantle where hot material undergoes decompression melting as it rises. Decompression melting also occurs at the mid-ocean ridges where new oceanic crust is formed from rising mantle rock.
What is the layer of earth that formed as lighter elements rose to the surface?
The Crust
Where new crust is formed?
New crust is formed at a divergent boundary
How is new crust continually being formed?
new crust is always being formed by magma erupting from volcanoes and then cooling into rock making new crust. -Jacob Halon
Is a new oceanic crust formed at a transform fault boundary?
No. New oceanic crust is formed at a divergent boundary. A convergent boundary neither creates nor destroys crust.
Is subduction zone is where new crust is being formed?
No. As crust subducts under another plate, it is destroyed (Convergent Boundary). When plates pull apart, new crust is formed (Divergent Boundary).
What boundary is formed when magma rises to the surface and new crust is formed?
divergent
Where new crust is being formed?
New oceanic crust is continually being created at the Mid-Ocean ridges.
Are divergent boundaries where new crust is formed?
That is correct.
Where is new continental crust formed?
at themid oceanridges
Ocean crust is formed where in the ocean?
New ocean crust is formed at mid-ocean ridges where tectonic plates are diverging (spreading apart).
What is the new oceanic crust formed by?
Magma leaking in from the mantle.
Where is the new ocean crust formed?
mid-ocean ridge
Is new crust formed at a conservative plate boundary?
lava
