sial Definition
- 1the rocks rich in silicon and aluminum that form the upper layer of the earth's crust
- 2of or relating to this layer
Using sial: Examples
Take a moment to familiarize yourself with how "sial" can be used in various situations through the following examples!
Example
The sial is composed chiefly of granite and similar rocks.
Example
The sialic crust is thicker under the continents than under the oceans.
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Summary: sial in Brief
The term 'sial' [sahy-uh l] refers to the upper layer of the earth's crust, which is rich in silicon and aluminum. It is composed mainly of granite and similar rocks and is thicker under the continents than under the oceans.
