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The oceanic crust is the outermost layer of the lithosphere of the Earth. Scientists have estimated that its average age is around 200 million years.
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How does the age of oceanic crust compare to the age of continental crust?
Oceanic crust is generally much younger. New ocean crust is constantly being formed.
Is earth's continental crust thicker or thinner than the oceanic crust?
On average, it is much thicker than oceanic crust.
What are the two types of crust on the earth?
There are two types of crust, and they are the oceanic crust and the continental crust. Oceanic crust is thinner yet more dense than continental crust, and continental crust is on average older than oceanic crust :)
What is the density of oceanic crust?
it is 3.0 g.\cm to the third power. Your welcome.
The maximum age for oceanic crust is?
It is about 200 million years
How does the age of oceanic crust compare to the age of continental crust?
Oceanic crust is generally much younger. New ocean crust is constantly being formed.
What is the density of continental crust and oceanic crust?
The specific gravity, on average, of continental crust is 2.7. For oceanic crust, it's 2.9.
How thick is the oceanic crust is?
The oceanic crust has an average depth in the range of 5-10 kilometers.
Is earth's continental crust thicker or thinner than the oceanic crust?
On average, it is much thicker than oceanic crust.
What are the two types of crust on the earth?
There are two types of crust, and they are the oceanic crust and the continental crust. Oceanic crust is thinner yet more dense than continental crust, and continental crust is on average older than oceanic crust :)
Which layer of the crust has an average thickness of five miles?
The oceanic crust.
Why is the oceanic plate subducted when an oceanic plate collides with a continental plate?
The Oceanic plate is subducted under the Continental plate because oceanic crust is much more dense than continental crust. The average density of the oceanic crust is 3g/cm^3 while the average density of continental crust is 2.7g/cm^3.
What is the density of oceanic crust?
it is 3.0 g.\cm to the third power. Your welcome.
Why is the oceanic crust younger than cretaceous?
This is not true. There is quite some oceanic crust that is older than the Cretaceous still present and we even find small parts of very ancient oceanic crust on the continents as ophiolites. On average the oceanic crust might be of Cretaceous or even younger age because it is constantly recycled into the mantle in subduction zones and created on mid ocean ridges.
Why does the continental crust go father down into the mantle than the oceanic crust?
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.
What is the main difference between continental plates and oceanic plates?
Oceanic crust is created on Mid ocean ridges and of basaltic composition. Oceanic crust is on average comparatively young as it is subducted into the mantle in subduction zones. Oceanic crust is denser and thinner than average continental crust.The composition and age distribution of continental crust is much more complicated than that of oceanic crust. It is on average less dense and much thicker than oceanic crust and its composition is roughly that of a tonalite (something similar to a granite but with less alkali feldspar). Apart from igneous rocks and metamorphic rocks, the sedimentary rocks add a lot to the variety of lithologies found on the continents (carbonates, evaporites, sandstones, shales, conglomerates, etc.).As opposed to oceanic crust, continental crust is not subducted into the mantle in large quantities but has been gradually accumulating over geologic timescales.
The maximum age for oceanic crust is?
It is about 200 million years
