Question

What is meant by Sima and Sial​

Answer 1

Answer:

the meaning of sima means (noun Geology.)

an assemblage of rocks, rich in silica and magnesium, that constitutes the lower layer of the earth's crust and is found beneath the ocean floors and the sial of continents.

Explanation:

and the meaning of sial means

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. ... As these elements are less dense than the majority of the earth's elements, they tend to be concentrated in the upper layer of the crust.

Answer 2

Answer:

Sima - Silica +Magnesium

Below thae sial layer the rock are mainly rich in silica and magnesium and are called sima .

Sial - Silica + Alminium

The uppermost part of the lithosphere is composed of rocks rich in silica and aluminium is called sial .

Explanation:

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