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In sea-floor spreadingmolten material rises from the mantle and erupts where?
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In seafloor 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.
Where does molten material that rises from the mantle erupt?
it erupts from the mantle witch is part of the structure of the earth.
Does seafloor displaces more of the mantle that the same thickness of the continental crust?
Yes
Does every volcano form in the mantle?
No, the Earth's mantle is to deep and warm for this. Magmas are generated in the upper mantle by a process called partial melting and the melt collects in the crust (in magma chambers at varying depth).
What is the zones places where the seafloor is forced under continents to drift?
Subduction zones are where the seafloor is forced under continental plates.
In seafloor 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.
Where does molten material that rises from the mantle erupt?
it erupts from the mantle witch is part of the structure of the earth.
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 is the process that makes old oceanic crust go into the mantle?
makes up the bottom of the world's oceans is Magma from the underlying mantle erupts at the edges, then cools and solidifies to form new ocean crust.plate a process called seafloor spreading and back into the.
What type of plate boundary do plates move apart resulting in the upwelling of material from the mantle to create new seafloor?
Big Boundaries
What is the place were the seafloor if forced down into the mantle?
mid ocean ridge
What is Place were the seafloor is force down into the mantle?
mid ocean ridge
How do hotspots form in the mantle?
At a hot spot, the mantle directly beneath the crust is hotter than usual. This hot mantle material partially melts. The molten material, called magma, rises through the crust and erupts onto the surface for form volcanoes.
What layer produces the magma that cause seafloor spreading and volcanoes?
the upper mantle
Does seafloor displaces more of the mantle that the same thickness of the continental crust?
Yes
Does every volcano form in the mantle?
No, the Earth's mantle is to deep and warm for this. Magmas are generated in the upper mantle by a process called partial melting and the melt collects in the crust (in magma chambers at varying depth).
What kinds of ocean currents might cause seafloor spreading?
Ocean currents have no effect whatsoever. Seafloor spreading is caused by convection currents in the rock of the earth's mantle.
