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chapter 8 & 10 vocab
| Term | Definition |
|---|---|
| earthquake | where rock begins to bend and then snap and reform shape |
| focus | where the earthquake actually happened deep into the earth |
| seismic waves | elastic wave made by some kind of impulse as a earthquake |
| epicenter | the point on Earth surface that's right above the focus |
| elastic rebound | the rocks bend until they cant no more then they snap and reform there original shape |
| body waves | the types of earths earthquakes |
| p waves | push pull body waves |
| s waves | side to side waves |
| surface waves | surface waves are larger on land and do most damage |
| seismograph | an instrument used to record the details of earthquakes and show how high intensity they were |
| seismogram | a record made by a seismograph |
| Richter Scale | to record the range of earthquakes |
| Moment Magnitude Scale | is used by seismologists to record the size of a earthquake |
| modified mercalli scale | the scale is a scale that has a numerical levels of how people reacted to the earthquakes |
| liquefaction | where soil loses its strength and ability to hold buildings |
| tsunami | where a earthquakes happens in the water and the energy carries the water and creates a tsunami |
| seismic gap | segment of an active fault |
| crust | the earths surface |
| mantle | the liquid lave in the core |
| outer core | is a liquid manly made of iron and nickel |
| inner core | it is the very center of the earth and it is a solid ball |
| moho | short Mohorovicic discontinuous |
| Ring of fire | a major area in the Pacific ocean and has lots of earthquakes and volcano |
| hot spot | where the temperature is to hot and unsafe to be around |
| viscosity | the state of being thick, sticky, and semi-fluid in consistency, due to internal friction. |
| vent | an opening that allows air, gas, or liquid to pass out of or into a confined space. |
| pyroclastic material | cloud of ash, lava fragments carried through the air, and vapor |
| volcano | a mountain or hill, typically conical, having a crater or vent through which lava, to erupt from it |
| crater | a large, bowl-shaped cavity in the ground or on the surface of a planet or the moon, typically one caused by an explosion |
| shield volcano | a broad, domed volcano with gently sloping sides, characteristic of the eruption of fluid, basaltic lava. |
| cinder cone | a cone formed around a volcanic vent by fragments of lava thrown out during eruptions. |
| composite volcano | a conical volcano built up by many layers (strata) of hardened lava, |
| caldera | a large volcanic crater, typically one formed by a major eruption leading to the collapse of the mouth of the volcano. |
| lahar | destructive mudflow on the slopes of a volcano. |
| pluton | a body of intrusive igneous rock. |
| sill | a tabular sheet of igneous rock intruded between and parallel with the existing strata. |
| laccolith | a mass of igneous rock, typically lens-shaped, that has been intruded between rock strata causing uplift |
| dike | a long wall or embankment built to prevent flooding from the sea. |
| batholith | a very large igneous intrusion extending deep in the earth's crust. |
Created by:
2010900
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