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The top component of the Earth's Lithosphere distinguished from the underlying bottom component of Lithosphere by its chemical composition.
The Curst itself It consists of two components:
| Constituting Rocks | Thickness | |
| Sedimentary Cover | Sedimentary Rocks | 5% of the total Crust thickness |
| Crust Basement |
| Igneous Rocks |
95% of the total Crust thickness | |
| Metamorphic Rocks |
The Sedimentary Cover overlays the the Crust Basement but in some areas it may be eroded exposing the Crust Basement.The total thickness of Sedimentary Cover is around 5% f the total to the surface.
See also
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Natural Science / Geoscience / Earth's Structure
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