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What happens to the oceanic plate as is descends below 700 km into the mantle?
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What are hot spots in the crust caused by?
The hot spots in the oceanic crust are caused by upwellings of hotter material (known as mantle plumes) in the mantle below the crust.
Where did the crust from the earth come from?
The Earth some times oceanic crust is formed by the process of mid oceanic ridges. this process occurs when magma comes from the mantle and cool below oceanic body & form new crust.
Which type of crust will rise on top of the other?
Continental crust over Oceanic crust.
What happens in a continental to oceanic plate collision?
The oceanic plate is forced below the continental, It sinks into the mantle. An oceanic trench is formed where it descnds. The plate melts as it sinks, due in part to friction between the plates. This produces earthquakes and volcanos, and as the magma tends to contain lots of volotiles, the volcanos are explosive.
What happens when ocean crust and mantle after subduction?
one edge is forced below the edge of another
What are hot spots in the crust caused by?
The hot spots in the oceanic crust are caused by upwellings of hotter material (known as mantle plumes) in the mantle below the crust.
Where did the crust on the Earth come from?
The Earth some times oceanic crust is formed by the process of mid oceanic ridges. this process occurs when magma comes from the mantle and cool below oceanic body & form new crust.
Where did the crust from the earth come from?
The Earth some times oceanic crust is formed by the process of mid oceanic ridges. this process occurs when magma comes from the mantle and cool below oceanic body & form new crust.
Which type of crust will rise on top of the other?
Continental crust over Oceanic crust.
What happens in a continental to oceanic plate collision?
The oceanic plate is forced below the continental, It sinks into the mantle. An oceanic trench is formed where it descnds. The plate melts as it sinks, due in part to friction between the plates. This produces earthquakes and volcanos, and as the magma tends to contain lots of volotiles, the volcanos are explosive.
What would be expected to result from a collision between a continental lithospheric plate and a oceanic lithospheric plate?
Typically the less dense continental plate would stay afloat while the denser oceanic plate would be submerged below. This can result in volcanic eruptions at the subduction zone due to oceanic crust undergoing increased pressure and temperatures as it descends below the continental crust.
What happens when ocean crust and mantle after subduction?
one edge is forced below the edge of another
Why does oceanic crust melt?
At mid-ocean ridges, such as the Atlantic Rise and Pacific Rise. As two plates move apart the crust is stretched and thinned, causing less pressure on the mantle immediately below. Due to this drop in pressure the mantle undergoes "decompressional melting" allowing magma to form. This magma is less dense than the surrounding mantle and rises at the mid-ocean ridges, cooling and forming new oceanic crust.
What happens when an oceanic plate collides with a continental plate?
when oceanic crust and continental crust collide, the oceanic crust sinks down beneath the continental crust. this is called subduction.
Is the mantle below or beside the crust?
The Earth's mantle is below the crust. The layers of the Earth form concentric spheres. Below the mantle is the core.
What is under the mantle?
Below the mantle is the core.
Why does subduction occur?
Subduction happens when two tectonic plates collide. The earth's crust is made up of separate plates that 'float' on the mantle below. They are always moving, and when two move together, one will slide under the other. For instance, the subcontinent of India is colliding with the continent of Asia.
