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lithosphere+geology
envs 101 exam 2 review
| Term | Definition |
|---|---|
| mineral | solid with chemical and physical crystalline structure |
| sediment | minerals are broken into grains |
| rock | solid aggregate of minerals |
| ore | mineral or sediment with an element of value inside |
| Earths core | made of metals in the solid center, then liquid magma outside |
| mantle | 84% of earths volume made of the lithosphere and the asthenosphere |
| Alfred Wegener | came up with plate tectonics in 1915 |
| ocean plates | made of basalt |
| terrestrial plates | made of granite |
| topography | the shape of the land as defined by land forms |
| soil | a mixture of biotic and abiotic components atop the earths mantle which sustains life |
| CLORPT | CLimate Organisms topogRaphy Parent material formation Time |
| how many tectonic plates? | 15 |
| divergent boundaries | plates split apart, forming rift valleys |
| convergent boundaries | dense plate slides under the light plate, forming mountains |
| transform boundaries | plates slide together, creating earth quakes and fault lines |
| igneous rocks | from magma |
| sedimentary rocks | from sediments |
| metamorphic rocks | from change (heat and pressure) |
| coastal plains region | primarily sediments, youngest, from the Eocene |
| blue ridge region | oldest - from Pangaea |