Geography, asked by SunamiBhumij, 1 year ago

How does SIAL differ from SIMA ?

Answers

Answered by LovleenaRath
7
Both are different as SIAL consists of silica and aluminum and SIMA consists of silica and magnesium
Answered by KankanaChandra
4
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.
In geology, sima is the name for the lower layer of the Earth's crust. This layer is made of rocks rich in magnesium silicate minerals. Typically when the sima comes to the surface it is basalt, so sometimes this layer is called the 'basalt layer' of the crust.
Similar questions