Definition of sial in English:
The material of the upper or continental part of the earth’s crust, characterized as being of relatively low density and rich in silica and alumina. Contrasted with sima.
- The rocks found in the crust of the continents is called sial.
- A mnemonic term derived from for silica, for alumina, and for magnesium, applied as a compositional term to a layer within the Earth that occupies a position intermediate between sial and sima.
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Australia
Most popular in Malaysia
Most popular in India