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| Term | Definition |
|---|---|
| Earthquakes | Movements of the ground that occurs when rocks inside Earth pass their elastic limit, break suddenly, and experience elastic rebound. |
| Fault | Fracture that occurs when rocks break and that result in relative movement of opposing sides; can form as a result of compression, being pulled apart, or shear |
| Seismic Waves | Earthquake waves, including primary waves, secondary waces, and surface waves. |
| Focus | Point deep inside Earth where energy is, realeased, causing an earthquake |
| Epicenter | Point on Earths surface directly above an earthquakes focus |
| Seismograph | Instument used to record seismic waves |
| Magnitude | A measure of the energy released by an earthquake |
| Tsunamis | Powerful seismic sea wave the begins over an ocean-floor earthquake, can reach 30 m in height when approaching land, and can cause destruction in coastal areas. |
| Seismic Safe | Describes the ability of structures to stand up against the vibrations caused by an earthquake. |
| Volcanoes | Cone-shaped hill or mountain formed when hot magma, solids, and gas erupt onto Earths surface through a vent. |
| Lava | Molten rock flowing onto Earths surface |
| Sheild Volcano | Large, broad volcano with gently sloping sides that is formed by the buildup of basaltic layers. |
| Cinder Cone Volcano | Relatively small volcano formed by moderate to explosives eruptions of tephra |
| Composite Volcano | Steep-sided volcano formed from alternating layers of violent eruptions of tephra and quiter versions of lava |
| Rifts | Long crack, fissure, or trough that forms between tectonic plates moving apart at plate boundaries |
| Hot Spots | Hot, molten rock material that has been forces upward from deep inside Earth, which may cause magma to break through Earth's mantle and crust and may form volcanoes |
| Normal Fault | Rocks are pulled apart |
| Strike-Slip Fault | Rock are Sheared |
| Reverse Fault | Rock are compressed |
| Tephra | Bits of rock or solidified lava dropped from the air |
| Earthquakes | Movements of the ground that occurs when rocks inside Earth pass their elastic limit, break suddenly, and experience elastic rebound. |
| Fault | Fracture that occurs when rocks break and that result in relative movement of opposing sides; can form as a result of compression, being pulled apart, or shear |
| Seismic Waves | Earthquake waves, including primary waves, secondary waces, and surface waves. |
| Focus | Point deep inside Earth where energy is, realeased, causing an earthquake |
| Epicenter | Point on Earths surface directly above an earthquakes focus |
| Seismograph | Instument used to record seismic waves |
| Magnitude | A measure of the energy released by an earthquake |
| Tsunamis | Powerful seismic sea wave the begins over an ocean-floor earthquake, can reach 30 m in height when approaching land, and can cause destruction in coastal areas. |
| Seismic Safe | Describes the ability of structures to stand up against the vibrations caused by an earthquake. |
| Volcanoes | Cone-shaped hill or mountain formed when hot magma, solids, and gas erupt onto Earths surface through a vent. |
| Lava | Molten rock flowing onto Earths surface |
| Sheild Volcano | Large, broad volcano with gently sloping sides that is formed by the buildup of basaltic layers. |
| Cinder Cone Volcano | Relatively small volcano formed by moderate to explosives eruptions of tephra |
| Composite Volcano | Steep-sided volcano formed from alternating layers of violent eruptions of tephra and quiter versions of lava |
| Rifts | Long crack, fissure, or trough that forms between tectonic plates moving apart at plate boundaries |
| Hot Spots | Hot, molten rock material that has been forces upward from deep inside Earth, which may cause magma to break through Earth's mantle and crust and may form volcanoes |
| Normal Fault | Rocks are pulled apart |
| Strike-Slip Fault | Rock are Sheared |
| Reverse Fault | Rock are compressed |
| Tephra | Bits of rock or solidified lava dropped from the air |
| Earthquakes | Movements of the ground that occurs when rocks inside Earth pass their elastic limit, break suddenly, and experience elastic rebound. |
| Fault | Fracture that occurs when rocks break and that result in relative movement of opposing sides; can form as a result of compression, being pulled apart, or shear |
| Seismic Waves | Earthquake waves, including primary waves, secondary waces, and surface waves. |
| Focus | Point deep inside Earth where energy is, realeased, causing an earthquake |
| Epicenter | Point on Earths surface directly above an earthquakes focus |
| Seismograph | Instument used to record seismic waves |
| Magnitude | A measure of the energy released by an earthquake |
| Tsunamis | Powerful seismic sea wave the begins over an ocean-floor earthquake, can reach 30 m in height when approaching land, and can cause destruction in coastal areas. |
| Seismic Safe | Describes the ability of structures to stand up against the vibrations caused by an earthquake. |
| Volcanoes | Cone-shaped hill or mountain formed when hot magma, solids, and gas erupt onto Earths surface through a vent. |
| Lava | Molten rock flowing onto Earths surface |
| Sheild Volcano | Large, broad volcano with gently sloping sides that is formed by the buildup of basaltic layers. |
| Cinder Cone Volcano | Relatively small volcano formed by moderate to explosives eruptions of tephra |
| Composite Volcano | Steep-sided volcano formed from alternating layers of violent eruptions of tephra and quiter versions of lava |
| Rifts | Long crack, fissure, or trough that forms between tectonic plates moving apart at plate boundaries |
| Hot Spots | Hot, molten rock material that has been forces upward from deep inside Earth, which may cause magma to break through Earth's mantle and crust and may form volcanoes |
| Normal Fault | Rocks are pulled apart |
| Strike-Slip Fault | Rock are Sheared |
| Reverse Fault | Rock are compressed |
| Tephra | Bits of rock or solidified lava dropped from the air |
| Earthquakes | Movements of the ground that occurs when rocks inside Earth pass their elastic limit, break suddenly, and experience elastic rebound. |
| Fault | Fracture that occurs when rocks break and that result in relative movement of opposing sides; can form as a result of compression, being pulled apart, or shear |
| Seismic Waves | Earthquake waves, including primary waves, secondary waces, and surface waves. |
| Focus | Point deep inside Earth where energy is, realeased, causing an earthquake |
| Epicenter | Point on Earths surface directly above an earthquakes focus |
| Seismograph | Instument used to record seismic waves |
| Magnitude | A measure of the energy released by an earthquake |
| Tsunamis | Powerful seismic sea wave the begins over an ocean-floor earthquake, can reach 30 m in height when approaching land, and can cause destruction in coastal areas. |
| Seismic Safe | Describes the ability of structures to stand up against the vibrations caused by an earthquake. |
| Volcanoes | Cone-shaped hill or mountain formed when hot magma, solids, and gas erupt onto Earths surface through a vent. |
| Lava | Molten rock flowing onto Earths surface |
| Sheild Volcano | Large, broad volcano with gently sloping sides that is formed by the buildup of basaltic layers. |
| Cinder Cone Volcano | Relatively small volcano formed by moderate to explosives eruptions of tephra |
| Composite Volcano | Steep-sided volcano formed from alternating layers of violent eruptions of tephra and quiter versions of lava |
| Rifts | Long crack, fissure, or trough that forms between tectonic plates moving apart at plate boundaries |
| Hot Spots | Hot, molten rock material that has been forces upward from deep inside Earth, which may cause magma to break through Earth's mantle and crust and may form volcanoes |
| Normal Fault | Rocks are pulled apart |
| Strike-Slip Fault | Rock are Sheared |
| Reverse Fault | Rock are compressed |
| Tephra | Bits of rock or solidified lava dropped from the air |