Geography, asked by ansh5113, 2 months ago

What is meant by Sima and Sial?​

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Answered by avanishsingh99
12

Answer:

Sima and Sial

In geology, sima (/ˈsaɪmə/) is an antiquated blended term for the lower layer of Earth's crust. This layer is made of rocks rich in magnesium silicate minerals. ... Comparable is the name 'sial' which is the name for the upper layer of Earth's crust (continental crust)

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Answered by jasmine2266
1

Answer:

sima - silica and magnesium

sial - silica and aluminium

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