What is another word for sial?
Pronunciation: [sˈa͡ɪəl] (IPA) 
Sial is a geological term that refers to the uppermost layer of the earth's crust. It primarily consists of silicon, aluminum, and magnesium. However, there are several synonyms for the word sial, including continental crust, granitic crust, felsic crust, and acidic crust. The term continental crust is more commonly used, and it refers to the part of the earth's crust that forms the continents and the areas that are above sea level. The term granitic crust refers to the continental crust's characteristic composition, which is felsic, or rich in silica. On the other hand, the terms felsic crust and acidic crust emphasize the chemical composition of the sial, which is primarily made up of feldspar and quartz, and lower in density than the underlying oceanic crust.
