Question

State the composition of the SIAL layer?​

Answer 1

In geology, the term 'sial' refers to the composition of the upper layer of the Earth's crust, namely rocks rich in silicates and aluminium minerals. It is sometimes equated with the continental crust because it is absent in the wide oceanic basins, but "sial" is a geochemical term rather than a plate tectonic term.

Answer 2

Sial stands for SI-silicon and AL-stands for aluminum. The sial makes up the ocean floor