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The Dynamic Earth
chapter 3 vocabulary
Term | Definition |
---|---|
Geosphere | The solid part of the Earth that consists of all rock, as well as the soils and loose rocks on Earth's surface. |
Crust | Earth's thin outer layer. |
Mantle | The layer beneath the crust that makes up 64% of earth's mass. |
Core | Earth's innermost layer. |
Lithosphere | Earth's outer layer that has a cool rigid layer ,15 to 300 km thick which includes the crust and the uppermost part of the mantle. |
Asthenosphere | The layer beneath the lithosphere. |
Tectonic plates | A block of lithosphere that consists of the crust and the rigid, outermost part of the mantle. |
Erosion | The removal and transportof surface material. |