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The region where the seafloor is forced beneath the continental plate is called a subduction zone. When the seafloor descends down it produces a deep-ocean trench.
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∙ 9y ago
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∙ 11y agothe subduction zone
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Why is oceanic plate denser than continental plate?
Oceanic plates are primarily made up of basaltic rock while continental plates are primarily made of granitic rock. Basalt is denser than granite which allows oceanic plates to subduct beneath continental plates.
Place where seafloor spreading occurs?
Seafloor spreading occurs at the boundary between two tectonic plates. As the plates divide, magma comes up through the crack and cools to form new sea floor. The farther away the floor is from the boundary, the older it is.
What are continental plates made of?
AnswerThe continental plates are made up of largely granitic rock, while the oceanic plates are largely basaltic rock. Certainly some other types of rock are included, but these are the largest contributors to the material or composition. A link is provided below for more information.
What does the collision of a continental plate and an oceanic plate produce?
when two plates collide they form trenches.
Name a plate that is entirely made of continental crust?
All major plates contain both continental and oceanic crust except for the Pacific and Nazca plates.
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.
Where the seafloor is forced under continental plates?
the subduction zone
The collision of two tectonic plates produces a volcano what types of plates could be involved?
two seafloor plates and a seafloor plate and continental plate
What evntually happens to seafloor that is carried away from a mid-ocean ridge?
Seafloor continues to move away from the mid-ocean ridge and eventually comes into contact with another plate boundary. Ocean plates subduct underneath continental plates and are forced down into the lithosphere
How does continental rock differ from seafloor rock?
Continental plates are massively granitic rock, oceanic plates massively basaltic rock, therefore continental rock is less dense than seafloor rock and has a different chemical and mineralogical composition.
What is the primary force that cause the seafloor to spread and continental to drift?
Contintal plates
Zones or places where the seafloor is forced under continental plates?
Subduction of oceanic plates under continental plates occurs at convergent plate boundaries, where the plates are moving toward each other. When an oceanic plate meets a continental plate, it is usually the one subducted, due to its greater density. The Pacific "Ring of Fire", particularly east to south east Asia and the west coast of South America, is the result of oceanic plate subduction, and hence there is a high number of earthquakes and volcanism in the area.
How does seafloor spreading explain continental drift?
Seafloor spreading is caused by two plates moving apart. This is caused by plate tectonics. Continental drift is also caused by plate tectonics. Therefore, we can conclude that continental drift is related to seafloor spreading. When the plates move, it carries the continents with it, and thus the continents drift away from each other.
How deep trenches are formed?
Deep-ocean trenches are formed where seafloor tectonic plates subduct under continental plates.
In the process of sea floor spreading what happens when magma rises to the earths surface and solidifies?
Yes. Seafloor spreading is the term given to the creation of new seafloor at divergent boundaries. At a divergent boundary, two oceanic plates move apart, which obviously means that something must then surface to fill the void. This is where the magma rises from the Earth's interior and cools to become seafloor. On the other end, at convergent boundaries, the old seafloor is forced under the continental plates, where it is recycled back into the Earth's magma supply.
In the process of sea-floor spreading what happens when magma rises to Earth's surface and solidifies?
Yes. Seafloor spreading is the term given to the creation of new seafloor at divergent boundaries. At a divergent boundary, two oceanic plates move apart, which obviously means that something must then surface to fill the void. This is where the magma rises from the Earth's interior and cools to become seafloor. On the other end, at convergent boundaries, the old seafloor is forced under the continental plates, where it is recycled back into the Earth's magma supply.
What do you call an oreanic plate being forced under continental plates?
subduction
