Plates

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Plates
EQ
Earth Structure
Vocabulary
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2
Name three things produced at a convergent ocean
and continental boundary.
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Trench, mountain, volcano, subduction
4
Compare the density, thickness and material that
each type of crust is made of
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Oceanic thinner, denser, mafic
basaltContinental thicker, less dense, felsic
granite
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Name of the supercontinent (spelled correctly!)
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Pangaea
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Divergent ocean and ocean
9
Name the two types of waves produced by an EQ and
compare their speed, direction of movement, and
damage production.
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P faster, compressional, less damageS- slower,
side to side (shear), more damage
11
How far can an S wave travel in 17 minutes?
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6,000 km
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What is the lag for an EQ epicenter of 4,600 km
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610
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What is the origin time of an epicenter that is
1,800 km away and the P wave arrives is 100640
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100300
17
What type of plates and boundary produce ridges
or rises?
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Ocean and ocean divergence
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21
Name the location of the convection cells.
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The asthenosphere
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What do seismic waves tell us about the Earths
interior?
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Solid vs. Liquid
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What is the depth and temperature of the
interface between the inner and outer core.
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5,100 km and 6,300 degrees C
27
Explain how the shadow zone forms.
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P waves bend and S waves cannot go as they enter
the liquid outer core. Therefore, there is a zone
that receives no EQ waves.
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The time it takes for a P wave to go a certain
distance is ______
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P wave travel time
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The word for connecting fossils or rock types and
structures.
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correlation
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The idea that plates move
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Theory of Plate Tectonics
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A crack or break in the crust
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Fault
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