Question

the thickness of The crust below the continent is live as compared to oceanview geographical region

Answer 1

Our earths crust is devided into continental crust and oceanic crust. the continental crust is rich in Si and Al.. hence called SiAl, and oceanic crust is richer in Si and magic minerals,hence called SiMa. The oceanic crust is very young and continuously generated at the mid oceanic ridges and consumed at subduction zones. Due to denser composition, the oceanic plate subducts into the asthenosphere. And Continental plate cannot (lighter composition). As subduction of oceanic plate ( contains crust and upper part of upper mantle) occur, the sediments deposited in the basin that is being closed, are acreated to huge fold mountains (continental crust) moreover the oceanic crust on descent into the asthenosphere ungergoes partial melting forming arc mountains. Hence if we see the whole scenario,

Oceanic crust —> continental crust +remelted oceanic crust. (—-> : melting and partial melting)

And the continental crust never generally gets consumed in any tectonic process. Hence the thickness of continental crust consequently increases where as oceanic crust remains thin and constant.