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Geograpy Chp1
Plate Tectonics
| Term | Definition |
|---|---|
| Inner Core | 1,250km thick. Iron and nickel. Solid and metallic. |
| Outer Core | 2,200km thick. Iron and Nickel. Liquid and metallic. |
| Lower Mantle | Silica rocks. Solid and rocky |
| Upper Mantle | Lowest part of lithosphere. Solid |
| Asthenosphere | The part of the upper mantle that flows like trickle. |
| Mohorovicic Discontinuity (Moho) | A thin band near the top of the upper mantle. It marks change from crust to mantle |
| Crust | 5-100km think. Contains minerals such as quartz and feldspar found in igneous rock, such as granite, sedimentary and metamophic rocks |
| Lithosphere | Crust, Moho and Upper Mantle |