Sial (Noun)
Meaning
The granitelike rocks that form the outermost layer of the earth's crust; rich in silicon and aluminum.
Classification
Nouns denoting substances.
Examples
- The sial layer of the Earth's crust is composed of granite and other rocks rich in silicon and aluminum.
- Geologists study the sial to understand the formation and evolution of the Earth's surface.
- The sial is the outermost solid layer of the planet, ranging in thickness from 5 to 70 kilometers.
- The composition of the sial varies across different regions, but it is generally rich in quartz and feldspar minerals.
- The sial plays a crucial role in shaping the Earth's landscape through processes such as weathering and erosion.