sial
/ˈsʌɪəl
/noun [mass noun] Geology, dated
The material of the upper or continental part of the earth’s crust, characterized as relatively light 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.
Origin
1920s: from the initial letters of silica and alumina.
- get to the bottom of
- get-tough
- Getty, Jean Paul
- Gettysburg Address
- Gettysburg, Battle of
- get under someone's skin
- get untracked
- get up
- get-up-and-go
- get up (or pick up) steam
- get up someone's nose
- get up to
- get weaving
- get-well card
- get-well-soon card
- get wind of
- get with the program
- get your ass in (or into) gear
- Getz, Stan
- geum
- GeV
- gewgaw
- Gewürztraminer
- gey
- geyleys