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heat and pressure of the 2 plates pushing against each other.
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Aera where an oceanic plate goes down into the mantle?
A subduction zone at a convergent plate boundary. Undersea trenches are formed where the oceanic plate subducts, and volcanism and earthquakes may result from the partial melting and downward movement of the subducting crust.
What is a region where oceanic plates sink down into the asthenosphere?
Most notable is the so-called 'Ring of Fire', an area encircling the Pacific Ocean where oceanic crustal plates are subducting under continental plates and less dense oceanic plates.
What are the sources of heating that are responsible for the generation of Earth's magma?
Much of the heat is generated by the intense gravitational pressures caused by the surface depth and the intense friction created in the subduction zone, but there also a great deal of secondary factors. With the introduction of water in the subduction zone due to the fact that "wet" rock melts at lower temperatures than "dry" rock and aids in the process of partial melting in the subduction zones. The subducting material that is saturated with sea water mixes with the material and speeds the melting process. Steam rises into the overlying lithosphere and asthenosphere and causes the formation of vast quantities of magma due to pressure relief melting.
The area where a plate descends is a?
subduction zone
What is a region where a plate descends?
subduction zone
Why are volcanoes located in well defined belts?
because that is where plates subduct under each other creating subduction zones below the subduction zones these sinking plates heat up at the Wadati-Benioff zone. they melt and rise as magma towards the crust /'the ocean floor.over time the magma piles up due to constant rising and cooling of magma and in some cases an island forms as it breaks the ocean surface
Aera where an oceanic plate goes down into the mantle?
A subduction zone at a convergent plate boundary. Undersea trenches are formed where the oceanic plate subducts, and volcanism and earthquakes may result from the partial melting and downward movement of the subducting crust.
Is mount Cleveland a subduction zone?
Moun Cleveland formed as a result of a subduction zone, but is not a subduction zone in and of itself. A subduction zone is a feature that forms volcanoes, not a kind of volcano.
How does magma form at a subduction zone?
it is a chemical interaction started by the water the subducted plate brings down with it which causes melting and forms magma which creates volcanoes
What does not happen near a subduction zone?
anything can happen at a subduction zone
How does a volcano erupt and what causes it to erupt?
When a destructive boundary of two tectonic plates occurs the oceanic crust sinks underneath the continental crust as it is more dense, the oceanic crust then melts in the subduction zone and becomes magma in the mantle, this increases the pressure in the mantle and causes the magma to shoot up the volcano shaft and burst out of the top, this is an eruption
How metamorphosed rock is formed?
When a tectonic plate in a subduction zone, goes underneath another tectonic plate, the magma in the Earth's core causes the plate to break up and melt. This melted rock becomes magma, and when it pushes through the Earth's crust to create a volcanic eruption, the magma cools and becomes rock. This rock is Metamorphic rock.
What happens after magma erupts along mid ocean?
The magma spills over the ridge and pushes the old sea floor away toward a subduction zone where the old sea floor melts.
Which convergent boundaries do not have a subduction zone?
A continent to continent convergent boundary does not have a subduction zone.
Is volcan De fuego related to a hot spot or a subduction zone?
Subduction zone
What is a region where oceanic plates sink down into the asthenosphere?
Most notable is the so-called 'Ring of Fire', an area encircling the Pacific Ocean where oceanic crustal plates are subducting under continental plates and less dense oceanic plates.
When do most earthquakes occur in Japan?
Japan is an arc caused by subduction of the Pacific and Phillipine plates beneath the Eurasian plate. The subduction plates lose water to the mantle rocks as they go down, which causes the mantle rock to melt. This is the magma that forms the volcanoes. The earthquakes are caused by the plates scraping against each other- a subduction zone is basically a reverse fault.
