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.
Igneous and sedimentary rock. Or basalt.
Basalt
Bacause they are composed of material that is denser than that of the continental crust. As such ocernic crust is less bouyant than contiental crust and so where oceanic crust collides with continental crust, the oceanic srust tends to be forced beneath the continetal crust.
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.
Two differences are that the oceanic crust is more dense than continental, and continental crust is composed mostly of granite, while oceanic is mostly basalt
Igneous and sedimentary rock. Or basalt.
Basalt
Oceanic crust is more dense than continental crust.
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.
Bacause they are composed of material that is denser than that of the continental crust. As such ocernic crust is less bouyant than contiental crust and so where oceanic crust collides with continental crust, the oceanic srust tends to be forced beneath the continetal crust.
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.
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Brittle rock.
Two differences are that the oceanic crust is more dense than continental, and continental crust is composed mostly of granite, while oceanic is mostly basalt
Two differences are that the oceanic crust is more dense than continental, and continental crust is composed mostly of granite, while oceanic is mostly basalt
Igneous rock.
The lithosphere is composed of the oceanic and continental crusts.