sima
9.9
A lower layer of the Earth's crust made of rocks rich in silicon and magnesium
- noun
- /ˈsiːmə/
- Archaic
:
sima
- Geologists study the sima to understand the composition of the Earth's crust.
Examples
-
The sima lies beneath the lighter granite layer of the continental crust.
-
The transition from the sial to the sima is an important geological boundary.
-
Then, there would be coffee, buttermilk, lemonade, sima, and beer to drink.
Fiction book (1992) -
Finally, at the intermission, they sat down, exhausted, to drink glasses of sima.
Fiction book (1992) -
They sat down to sip their sima on a bench at the side of the dance floor.
Fiction book (1992)
Surface Forms
Etymology
Sima comes from the chemical names silica and magnesia, which mean 'silicon' and 'magnesium'. That's why sima names the dense, lower part of the Earth's crust that is rich in these elements.
