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Where are the elder parts of the ocean floor located?
Oceanic crust is created at mid-ocean ridges and (through the creation of new oceanic crust) is pushed toward a convergent plate boundary where it is subducted. So the oldest oceanic crust would be located at a convergent plate boundary where the oceanic crust is being subducted under continental crust.
How much does the oceanic crust weigh?
The average density of oceanic crust is about 2.9 g/cm^3. Given that oceanic crust is typically around 7 km thick, the weight of a cubic meter of oceanic crust would be approximately 29,000 kg (or 29 metric tons).
What is the layers of the earth call?
I believe this would be the oceanic crust
Are the oldest rocks of the oceanic crust found in deep ocean trenches far away from active mid-ocean ridges?
No, the oldest rocks of the oceanic crust are typically found near the continents where they have had more time to form and accrete. Deep ocean trenches are usually associated with subduction zones where tectonic plates are being forced underneath each other, rather than locations where new oceanic crust is forming.
Would it be easier to drill through the oceanic crust or the continental crust?
It is generally easier to drill through oceanic crust due to its thinner and less complex structure compared to continental crust. Continental crust is thicker and more variable in composition, making it more challenging to drill through.
Would it be better to drill through the earths crust or the oceanic crust?
oceanic crust
Why would a certain thickness of continental crust displace less of the mantle than the same thickness of oceanic crust?
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.
What would happen if the continental crust and the oceanic crust went into each other?
In a convergent plate collision between continental and oceanic plates, the more dense oceanic plate would subduct, or move underneath, the less dense continental plate, eventually melting into the mantle at the leading edge.
Where would the youngest crust on the Earth be found?
The youngest crust on Earth is typically found at mid-ocean ridges, where tectonic plates are moving apart and new crust is formed through volcanic activity. This process is known as seafloor spreading, and it results in the continuous creation of young oceanic crust.
What would be expected to result from a collision between a continental lithospheric plate and a oceanic lithospheric plate?
Typically the less dense continental plate would stay afloat while the denser oceanic plate would be submerged below. This can result in volcanic eruptions at the subduction zone due to oceanic crust undergoing increased pressure and temperatures as it descends below the continental crust.
What is the oceanic lithosphere?
The lithosphere is composed of crust and hard upper mantle. The oceanic lithosphere would be hard upper mantle and basaltic oceanic crust.
What is oceanic lithosphere?
The lithosphere is composed of crust and hard upper mantle. The oceanic lithosphere would be hard upper mantle and basaltic oceanic crust.
Does continental crust have a greater density than oceanic crust?
Yes, that is the reason oceanic crust is at a lower elevation compared to continental crust. Oceanic crust sub-ducts under the less dense continental crust. Continental crust is much older than oceanic crust, because oceanic crust is constantly being destroyed and created.
Where are the elder parts of the ocean floor located?
Oceanic crust is created at mid-ocean ridges and (through the creation of new oceanic crust) is pushed toward a convergent plate boundary where it is subducted. So the oldest oceanic crust would be located at a convergent plate boundary where the oceanic crust is being subducted under continental crust.
How much does the oceanic crust weigh?
The average density of oceanic crust is about 2.9 g/cm^3. Given that oceanic crust is typically around 7 km thick, the weight of a cubic meter of oceanic crust would be approximately 29,000 kg (or 29 metric tons).
Why does the oceanic crust travel underneath continental crust during subduction?
The mechanism behind the principle of tectonic plate subduction, is governed by certain laws of science (mostly in physics, chemistry and geography). This laws includes law of floatation, gravity and bouyancy . Naturally the Oceanic lithosphere which makes up the oceanic plates is composed of materials relatively denser than those of the continental lithosphere which makes up the continental plates and this is as a result of the variation in their chemistry. According to the law of flotating in physics, materials would be immersed in a fluid, according to their density and they would displace equivalent amount of that fluid as their weight/density. This generaly implies that the denser a body or material the deeper it will be emmersed in a fluid (ie, any substance that can flow eg water and molten materials), so definitely in a situation where the oceanic plate and continental plate collide the continental plate is been displaced by the oceanic plate due to difference in density, and the continental plate stays afloat because of its bouyancy. Also gravity affects the subduction of tectonic plates, by pulling the denser oceanic plate downwards and deeper into the asthenosphere than the continental plate. In summary, "the combined reactions of, bouyancy, force of gravity, effect of density, relative motion and direction of two opposite plates with different compositions" (bumping into one another), causes the circumstances surrounding plates subduction.
Is Mount Kilimanjaro made of continental crust or oceanic crust?
Of course it's continental crust! If it were made of oceanic crust, it would be underwater or some large island starting at the bottom of the ocean floor!
