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Why does the thickness of the Earth's crust range from 6 to 70km?
Wiki User
∙ 13y ago
Earth's crust varies in thickness due to differences in composition and the effects of plate tectonics. Oceanic crust is thinner and more dense than continental crust, and thinnest where plates are diverging from each other. Continental crust is thickest at mountain ranges, where the crust has been thickened by plate collision or thermal uplift.
Wiki User
∙ 13y ago
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How far beneath the earths surface would you have to go to be where there is no more granite?
Below the crust. This varies based on the thickness of the crust and it has to be continental crust for there to be granite. There are some exceptions to this but it is very complex and not very well understood at this time. The crust varies in thickness between ~25km and 70km (Basin and Range province and Himalayan Mountains, respectively).
How and why does the earths crust vary from place to place?
The earths crust its 5-70km deep in the ocean and upto 100km deep at mountain ranges. At certain areas, the crust is unstable due to moving plate tectonics.
How and why does the earths crust varies from place to place?
The earths crust its 5-70km deep in the ocean and upto 100km deep at mountain ranges. At certain areas, the crust is unstable due to moving plate tectonics.
How deep is petroleum in the earth's crust?
About 70km , that is the deepest level of earth crust.
How does the thickness of the earths crust vary?
Two main groups of crust exists: (1) oceanic and (2) continental crust. Oceanic crust is much heavier and thus much thinner (5-10 km) to be in isostatic equilibrium with the underlying mantle. Continental crust varies much more in thickness. This can be caused by collision of plates and the subsequent forming of mountains (see the Andes and Himalaya). Moreover crust can be thinned by severeal processes (e.g. dragging of subducting crust and forced extension by mantle diapeers)
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