0
Sea-floor spreading due to convection currents in the Earth's mantle (although this is still under investigation). Magma is pushed up through the cracks in the sea-floor as the plates move apart.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoBasaltic magma rises through the mid ocean ridges.
Wiki User
∙ 14y agoMagma, from decompression melting of mantle rock, rises to the surface at divergent plate boundaries, such as the mid-ocean ridges.
Wiki User
∙ 7y agoRising molten basaltic rock from the top of the mantle fills the crack at the midocean ridge and solidifies, preventing it from closing again.
Wiki User
∙ 12y agolava that is what it is
Wiki User
∙ 12y agoMagma / lava.
Add your answer:
Earn +20 pts
What is the process by which new oceanic lithosphere forms as magma rises to earth's surface and solidifies at a mid-ocean ridge?
seafloor spreading
Is new oceanic crust formed at a mid-ocean ridge?
The answer to that question is the following:=Magma rises toward the surface and solidifies=
In sea-floor spreading what happens to the old oceanic crust as new molten material rises from the mantle?
It gets pushed out to either side of the mid-ocean ridge.
What is the evidence for sea-floor spreading?
at the mid-ocean ridge, molten material rises up from the mantel and spreads out, pushing the older rocks to both sides of the ridge.
Forms as warm material rises and cold material sinks?
a laghiki
What Material rises to the surface at mid-ocean ridge?
Magma
Does magma produce new material when it rises from an ocean ridge?
Yes, when magma rises from an ocean ridge, it can produce new material through a process called seafloor spreading. As the magma reaches the surface, it cools and solidifies, forming new oceanic crust. This process contributes to the continuous expansion of the seafloor and the formation of new crustal material.
What is an underwater ridge of coral or rock that rises close to the surface?
it is a REEF
In sea-floor spreading molten material rises from the mantle and erupts .?
When spreading molten material rises from the mantle in the sea-floor and erupts, it can create sea mounts, which are underwater mountains. If enough material is ejected, the mounts will break through the surface of the water to create islands.
What are the steps in the process of sea-flooring?
The sea-floor spreading begins at the mid-ocean ridge, which forms along a crack in the oceanic crust. Along the ridge, molten material that forms several kilometers beneath the surface, rises and erupts. At the same time, older rock moves outward on both sides of the ridge. As the molten material cools, it forms a strip of solid rock in the center of the ridge. When more molten material flows into the crack, it forms a new strip of rock.
Why doe partly molten material rise toward earth's surface?
Less/dence material rises
What are the steps in process of sea floor spreading?
The sea-floor spreading begins at the mid-ocean ridge, which forms along a crack in the oceanic crust. Along the ridge, molten material that forms several kilometers beneath the surface, rises and erupts. At the same time, older rock moves outward on both sides of the ridge. As the molten material cools, it forms a strip of solid rock in the center of the ridge. When more molten material flows into the crack, it forms a new strip of rock.
What is the process by which new oceanic lithosphere forms as magma rises to earth's surface and solidifies at a mid-ocean ridge?
seafloor spreading
What is located in midocean ridges?
The Mid-Atlantic Ridge is found on the ocean floor in the middle of the Atlantic Ocean.
What do you call an underwater ridge that rises up close to the earths surface?
An underwater ridge rising close to the surface is called a reef. A reef is typically made of rock, sand or coral that lies 80 meters or less beneath low water.
What is it called when hot material rises to the sun's surface?
it is called the art of materilintasion which was discovered by the neanderthals
Why does corks below the water rise to the surface?
Cork consists of a material which is lighter, or less dense than water so it naturally rises to the surface.
