click below
click below
Normal Size Small Size show me how
Plate Tectonics
Plate Tectonics Vocabulary
| Term | Definition |
|---|---|
| Theory of the continental drift | The theory of the continents being one super-continent slowly drifting away to their spots today |
| Pangaea | A super-continent which means all land |
| Inner Core | Solid core made mostly of iron and nickel |
| Outer Core | Liquid core made mostly of iron and nickel |
| Mantle | The upper layer of the earth's mantle, below the lithosphere |
| Crust | The outermost solid shell of the earth which is about 5 to 40 miles thick |
| Lithosphere | The rigid outer part of the earth, consisting of the crust and upper mantle |
| Aesthenosphere | A zone of the earth's mantle that lies beneath the lithosphere and consists of several hundred kilometers of deformable rock |
| Continental Crust | Crust that forms under land or continents |
| Oceanic Crust | Crust that forms under oceans |
| Divergent Boundary | Boundary that splits land |
| Convergent Boundary | Boundary that collides with one another forming mountains and volcanoes |
| Transform Boundary | Boundary that slides past each other |