Monday, February 8, 2010

pg. 236-237 ?'s 1-24

1)Fault-the surface of such a break along which rocks move
Earthquake-movement of the ground that occurs when rocks inside Earth pass their elastic limit, break suddenly, and experience elastic rebound
2)Shield Volcano-large broad volcano with gently sloping sides that is formed by the buildup of basaltic layers
Composite Volcano-steep-sided volcano formed from alternating layers of violent eruptions of tephra and quieter eruptions of lava
3)Focus-point deep inside Earth where energy is released, causing an earth quake
Epicenter-point of Earth's surface directly above an earthquake's focus
4)Seismic Wave-earthquake waves, including primary waves, secondary waves, and surface waves.
Seismograph-instrument used to record seismic waves
5)Tsunami-powerful seismic sea wave that begins over an ocean-floor earthquake, can reach 30 m in height when approaching land, and can cause destruction in coastal areas.
Seismic Wave-earthquake waves, including primary waves, secondary waves, and surface waves.
6)Epicenter-point of Earth's surface directly above an earthquake's focus
Earthquake-movement of the ground that occurs when rocks inside Earth pass their elastic limit, break suddenly, and experience elastic rebound
7)Cinder Cone Volcano-relatively small volcano formed by moderate to explosive eruptions of tephra
Shield Volcano-large broad volcano with gently sloping side that is formed by the buildup of basaltic layers
8)d-convergent
9)a-volcano
10)b-hot spots
11)c-basaltic
12)d-composite
13)b-cinder cone
14)a-primary
15)d-tsunami
16)b-epicenter
17)Its right over a hot spot.
18)Cinder Cone Volcano-relatively small volcano formed by moderate to explosive eruptions of tephra
Composite-steep-sided mountains composed of alternating layers of lava and tephra
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