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When a continental plate and an oceanic plate collide why does the oceanic plate sink below the continental plate?
The oceanic plate is denser than the continental plate due to its composition of heavier mafic rock. This density difference causes the oceanic plate to sink below the continental plate in a process known as subduction.
What are the two differences between the continental crust and the oceanic crust?
The oceanic crust consists of heavier rock, mostly Basalt, so that if a oceanic plate collides with a continental plate the oceanic plate will be forced down below the continental plate, forming island arcs.continental plates are thicker than oceanic plates.
What are two differences between the oceanic crust and the continental crust?
The oceanic crust consists of heavier rock, mostly Basalt, so that if a oceanic plate collides with a continental plate the oceanic plate will be forced down below the continental plate, forming island arcs.continental plates are thicker than oceanic plates.
Which rock is denser continental or oceanic rock?
The average continental rock is less dense than the average oceanic rock. This is why when an oceanic and continental plate collide, the continental plate does not get subducted. There are varyations within the continental plates however, with some rocks being muck more dense and some being much less dense than the average.
How is continental lithosphere different oceanic lithosphere?
Continental lithosphere is thicker and less dense than oceanic lithosphere. Continental crust is primarily composed of granitic rock while oceanic crust is composed primarily of basaltic rock.
How is continental lithosphere different from oceanic lithosphere?
Continental plates are thicker and less dense. Continental plates are mainly granitic in composition. Oceanic plates are mainly basaltic in composition. The rock of continental plates is on average, much older than the rock of the oceanic plates. The oceanic plate underlies the oceans, and the continental plate makes up the land masses. Continental plates do not subduct at convergent plate boundaries.
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.
Both the oceanic and continental crusts are partially composed of what material?
Both oceanic and continental crusts consist primarily of igneous rock although they both contain some sedimentary rock. Oceanic crust is composed mainly of basaltic rock, while continental crust is composed of granitic rock.
Both oceanic and continental crust are composed of this?
Both oceanic and continental crust are composed primarily of igneous rocks, but they have different overall compositions. Oceanic crust is primarily made up of basalt, which is a type of volcanic rock, while continental crust is predominantly composed of granite, a type of intrusive igneous rock. Additionally, continental crust is generally thicker and less dense than oceanic crust.
Which rock makes continental and oceanic crust?
The rock that makes up both continental and oceanic crust is called basalt. Basalt is a mafic extrusive igneous rock that forms when lava cools and solidifies rapidly at the Earth's surface. It is commonly found in oceanic crust, while continental crust is made up of a variety of rocks including basalt.
How are oceanic crust and continental crust different?
Oceanic crust is denser and thinner than continental crust. Oceanic crust is primarily made up of basalt rock, while continental crust is composed of lighter granite rock. Additionally, oceanic crust is constantly being created and destroyed through seafloor spreading and subduction processes, whereas continental crust is relatively stable.
How are oceanic and continental crust alike and how are they different?
Oceanic and Continental crusts are alike because they both shift and move and grow. They differ by there rock types. Oceanic crust is made up of dense basalt while continental crust is made up of less dense granite.
