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sial

/ˈsaɪ.əl/

Tradução: Termo geológico que designa as rochas granitoides que formam a camada externa da crosta terrestre, ricas em silício e alumínio.

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noun

/ˈsaɪ.əl/C2formalscientific
  • ptTermo geológico que designa as rochas granitoides que formam a camada externa da crosta terrestre, ricas em silício e alumínio.

A geological term referring to the granitelike rocks that form the outermost layer of the Earth's crust, rich in silicon and aluminum.

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  1. Earth's crust layerC2formalscientific

    The granitelike rocks that form the outermost layer of the Earth's crust, rich in silicon and aluminum.

    ptSial

    • The sial layer is primarily composed of granite and other light-colored rocks.
    • Geologists study the sial to understand continental crust formation.
    • The sial is less dense than the sima layer beneath it.