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Why are continents not fixed permanently in location on the earths crust?
Wiki User
∙ 10y ago
The continents are embedded in the top side of crustal plates which float on the surface of the mantle. Convection currents in the mantle carry the plates around and the embedded continents travel along.
Wiki User
∙ 10y ago
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What are large chunks of earths crust called?
Continents
Why are the oldest parts of the earth's crust found on continents?
The older peices of the Earths crust are significantly lighter than the newer peices, (i.e. oceanic plates / basalt) forcing them to the surface.
What causes cracks in the earth's crust?
The crust is the thinnest part on the Earth.
Are all metals in the earths crust?
Yes all metals are in the earths crust in ore form.
What causes the earths crust to rise and fall?
The sudden vibration in the plates inside the crust causes the earths crust to rise & fall.
What is a large landmass that is part of the earths crust?
continents
What are large chunks of earths crust called?
Continents
Does the earths crust extend deeper below the continents or below the ocean basins?
Earths crust extend deeper below the continents than below the oceans basins (or at least this is what I think).
How did pangaea split?
Earths magma moved under the crust and the continents split
Continents and the ocean floor are part of earths solid rocky surface called?
crust
What is the thickness of the crust at the Mid-Atlantic Ridge?
the earths crust is 25 miles beneath the continents and 6.5 miles beneath the ocean
If continents bash in together can it become an earthquake?
When any continents bash in together, there is most likely to be an earthquake. When Earths crust bash against each other, there is an earthquake which sometimes causes sunamis. If that happens to Earth's crust, why not to continents?
Why do seismic waves speed up beneath the surface of continents?
Because earths crust is denser than the mantle
Why are the oldest parts of the earth's crust found on continents?
The older peices of the Earths crust are significantly lighter than the newer peices, (i.e. oceanic plates / basalt) forcing them to the surface.
By testing soil composition in various location scientists are able to determine the age of the earths?
crust
What theory of the formation and movement of the plates that cover the earths surface?
the movement and formation of the plates or continents is caused by conduction under the crust.
What is the theory of formation and movement of the plates that cover the earths surface?
the movement and formation of the plates or continents is caused by conduction under the crust.
