Igneous rock.
younger
Continental crust is much older, granitic in nature, and less dense than oceanic crust which is composed of basaltic rock. Oceanic crust is in a constant state of creation and destruction through the processes of plate tectonics. Oceanic crust is also considerably less thick than continental crust.
The oceanic crust begins at the Mid-Ocean Ridge, where tectonic plates are moving apart, allowing magma to rise and solidify, forming new crust. This process of seafloor spreading creates the youngest oceanic crust at the ridge and older crust farther away from it.
Yes, lithospheric plates can include both continental and oceanic crust. These plates are composed of the rigid outer layer of Earth's surface, which consists of the upper part of the mantle and the crust. Continental crust is less dense and thicker than oceanic crust, but both can form part of lithospheric plates.
Tectonic plates are composed of both oceanic and continental crust. Oceanic plates are predominantly made of basaltic rock, while continental plates are primarily composed of granitic rock. The Earth's lithosphere, which includes the tectonic plates, is made up of these crustal rocks.
younger
No, the continental crust is generally thicker and less dense than the oceanic crust. Continental crust can be up to 70 km thick in some areas, while oceanic crust averages about 7 km in thickness. Density-wise, oceanic crust is denser because it is made mostly of basalt, whereas continental crust is primarily composed of less dense granite and sedimentary rocks.
== == The Crust--The outer skin of the planet is composed of igneous, metamorphic, and sedimentary rock. Continental Crust: Comprised predominately of rocks most resembling granite, the continental crust is relatively thick compared to the oceanic crust with a depth that ranges from 30 km to 50 km. The average specific gravity of continental crustal rock is 2.7. Oceanic Crust: At an average depth of 5 km to 10 km, the oceanic crust is thinner than the continental crust. Oceanic crustal rocks are composed mainly of the igneous rocks basalt, diabase, and gabbro, which are mafic in composition. The average specific gravity of oceanic crustal rock is 2.9.
Continental crust is much older, granitic in nature, and less dense than oceanic crust which is composed of basaltic rock. Oceanic crust is in a constant state of creation and destruction through the processes of plate tectonics. Oceanic crust is also considerably less thick than continental crust.
The oceanic crust begins at the Mid-Ocean Ridge, where tectonic plates are moving apart, allowing magma to rise and solidify, forming new crust. This process of seafloor spreading creates the youngest oceanic crust at the ridge and older crust farther away from it.
Yes, lithospheric plates can include both continental and oceanic crust. These plates are composed of the rigid outer layer of Earth's surface, which consists of the upper part of the mantle and the crust. Continental crust is less dense and thicker than oceanic crust, but both can form part of lithospheric plates.
Oceanic crust is more dense than continental crust.
Most tectonic plates are made of both oceanic and continental crust. Oceanic crust is primarily composed of basalt, a dense volcanic rock, while continental crust is made up of granite and other lighter rocks. These differences in composition play a role in the movements and interactions of tectonic plates.
Tectonic plates are composed of both oceanic and continental crust. Oceanic plates are predominantly made of basaltic rock, while continental plates are primarily composed of granitic rock. The Earth's lithosphere, which includes the tectonic plates, is made up of these crustal rocks.
The topmost layer of the Earth's surface is called the crust. It is the outermost solid shell of the Earth and is composed of various types of rocks, minerals, and soil. The crust is divided into two types: continental crust, which makes up the continents, and oceanic crust, which forms the ocean floors. The thickness of the crust varies, with continental crust being thicker than oceanic crust.
The two types of crust found in the outermost layer of the Earth are continental crust, which is thicker and less dense, and oceanic crust, which is thinner and denser.
Most significantly, there is a material difference in the weight and density of the two types of crust. This manifests itself when tectonic movement brings oceanic in continental plates into collision. Oceanic crust is relatively denser but typically about 100km this. Continental crust is lighter but almost twice as thick--about 200km.