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∙ 14y agoThis is known as a subduction zone. When two plates collide, the less dense tectonic plate will be submerged under the other. The crust slips under and is destroyed by the magma. These are also called "destructive boundaries" because unlike divergent boundaries, crust is being destroyed.
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∙ 14y agoOceanic crust is more dense than continental crust.
Oceanic crust subducts under continental crust because it is denser. Continental crust's density is too low for it to be forced into the mantle.
Continental crust is less dense and thicker than oceanic crust, causing it to float higher on the mantle. The continental crust is also compositionally different, with a greater amount of less dense materials like granite compared to the basaltic composition of oceanic crust. This difference in density and composition results in the continental crust floating higher on the mantle.
Continental crust is less dense than oceanic crust, so it floats higher on the mantle. This means that the same thickness of continental crust will displace less mantle compared to oceanic crust. Additionally, continental crust is composed of lighter rocks like granites, while oceanic crust is made of denser rocks like basalt.
Continental crust is predominantly composed mostly of rock of a granitic composition, higher in silica and aluminum, with layers of sedimentary rock above. Oceanic crust is predominantly basaltic (higher in iron and magnesium), darker, thinner, more dense, and formed from rapid cooling of lava.
The continental crust because it is thicker than the oceanic crust
Oceanic crust is more dense than continental crust.
A conversion boundary is a place where 2 tectonic plates are mving toward each other. There are 3 types of convergent boundaries OCEANIC CRUST-OCEANIC CRUST OCEANIC CRUST-CONTINENTAL CRUST CONTINENTAL CRUST-CONTINENTAL CRUST They are classified according to their crust
Continental crust is less dense and thicker than oceanic crust, causing it to float higher on the mantle. The continental crust is also compositionally different, with a greater amount of less dense materials like granite compared to the basaltic composition of oceanic crust. This difference in density and composition results in the continental crust floating higher on the mantle.
Continental crust is less dense than oceanic crust because it is thicker and composed of lighter materials, such as granite. This lower density allows continental crust to "float" higher on the more dense mantle beneath it, creating continents.
Oceanic crust subducts under continental crust because it is denser. Continental crust's density is too low for it to be forced into the mantle.
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.
Continental crust, on average, is much thicker than oceanic crust. Because of the principles of isostacy and buoyancy, the continental crust will protrude more deeply into the asthenosphere than oceanic crust.
Because Oceanic crust is more dense and the Continental Crust is mountains which are a lot taller than sea floor.
There are several reasons - continental crust is less dense than the magma below - also - through a process known as Isostatic Equilibrium the continental crust maintains its level above the mantle. When oceanic crust contacts continental crust at plate boundaries there is a subduction zone where the oceanic crust is pushed under the continental crust because is it much thinner and less massive.
Continental crust is predominantly composed mostly of rock of a granitic composition, higher in silica and aluminum, with layers of sedimentary rock above. Oceanic crust is predominantly basaltic (higher in iron and magnesium), darker, thinner, more dense, and formed from rapid cooling of lava.
The mantle rock descending from the oceanic crust causes the water in oceanic crust to be released. This lowers the melting point of the rock and causes it to melt.