Earth's crust thickness Ehsani continents section, which have the lower part the ocean crust or all the land but has a density greater than the Earth's crust consists of ocean section. Silica and alumina is the most.
The continental crust The thickness of the crust under the oceans or into the earth. But dense than the oceanic crust is composed of silica and alumina majority.
The earth"s crust and the continent. The density was lower than the ocean crust or the all the land. Density than the ocean crust consists of silica and alumina mostly.