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as convection currents cause more magma to rise the new magma forces apart the hardened material and like a conveyer belt continuously pushes older rocks aside
Green Tremblay
Wiki User
∙ 14y agoMolten Material arises from the mantle and erupts through a mid ocean ridge. The material then spreads out, pushing older rock outward. This makes room for the molten material to harden and form new rock.
Wiki User
∙ 11y agoMidocean ridges are formed by currents of magma rising up from the mantle; volcanic eruptions create new basaltic ocean floor, that then spreads away laterally from the ridge. Thus the midocean ridges contain the newest crust formed on the planet. Where denser ocean lithosphere converges with less-dense continental lithosphere, the oceanic plate slides under the continental plate in a process called subduction. Magma produced by this subduction rises to form volcanoes and igneous intrusions.
Cited from Mcknight's Physical Geography ten edition pg 379
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Where is the place where seafloor spreading occur?
Mid-oceanic ridges
Does sea floor spreading occur at a convergent boundary?
No. Seafloor spreading occurs at a divergent boundary.
What did the magnetic strips prove in seafloor spreading?
They proved that the seafloor was spreading.
How to Diagram the process of seafloor spreading?
A diagram that shows how seafloor spreading works.
Seafloor spreading begins when?
Seafloor spreading is triggered by a rift in a continental land mass.
Which force is responsible for seafloor spreading?
Gravity in the oceanic crust is responsible for seafloor spreading.
Process that forms new seafloor?
Seafloor Spreading
What does seafloor spreading have to do with the theory of continental drift?
Seafloor Spreading helped move the Continents to their current location.
What does magma have to do with seafloor spreading?
When seafloor spreading occurs, it pushes the underground magma up though the new crust, creating a sort of volcano out of the new crust. Magma is a very important part in seafloor spreading. :]
What process forms new seafloor?
Seafloor spreading at midoceanic ridges.
Is there evidence that seafloor-spreading?
its not happy
What seafloor is the process by which new crust is created when seafloor moves apart and magma rises?
Seafloor Spreading
