Social Sciences, asked by advmanoj1907, 2 months ago

What is meant by Sima and Sial?

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Answered by Sagar9040

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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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