Earth Science Terms 3
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20 terms
Terms | Definitions |
|---|---|
 lithosphere | layer of rock that forms the outer shell at the top of the Earth's interior |
| crust | upper portion of the lithosphere |
| original horizontality | sedimentary rocks and some extraneous igneous rocks, such as lava flows, form in horizontal layers parallel to Earth's surface |
| folded rock layers | bent or curved |
| faulted rock layers | rock layers offset or displaced along a type of crack called a fault |
| uplifted | raised up land |
| earthquake | shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity |
| seismic waves | vibrations that travel through Earth carrying the energy released during an earthquake |
| epicenter | location on earths land or water directly above the focus of an earthquake |
| 3 types of seismic waves | P waves,S waves,Surface waves |
| p waves | primary waves that cause particles they travel through to vibrate in the direction the waves are moving |
| s waves | secondary waves cause the particals they are travel through to viberate at right angles |
| surface waves | happen when p and s waves come to earths surface |
| tsunami | large ocean wave produced by disruption of ocean floor. |
| volcano | mountain made of igneous rocks. |
| volcanic eruption | giving off of gasses and lava onto earthssurface or into the atmosphere. |
| mantle | earths thickest zone |
| moho | what seperates the crust from the mantle |
| lithosphere | the whole crust and upper most part of mantle |
| asthenosphere | below lithosphere part of mantle |
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