plate tectonics unit: dynamic planet. the unit so far absolute and relative dating absolute and...
TRANSCRIPT
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Plate TectonicsUnit: Dynamic Planet
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The Unit so far
• Absolute and Relative Dating
• Rock Column• Index Fossil
• Principle of original horizontality• Half-life
• Radiometric Dating
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The Unit so far
• You already know that the earth is divided into plates that move and
shift
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•W
hat a
re
Earth
qu
ake
s an
d• What are the
forces That are involved in causing
these dynamic aspects of the
Earth?
volc
an
oes?
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Wh
at ca
use
s the
Earth
to m
ove a
nd
I can model the forces believed
to be involved in the movement of
the crust.
volc
an
oes to
eru
pt?
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Vocabulary• Subduction zone
• Oceanic Crust/plate• Continental
Crust/plate• Earthquake• Partial melt• Volcano• Crust• Mantel
• Lithosphere• Asthenosphere
• Core• Ocean Trench/Ridge• Divergent plate
boundary• Convergent plate
boundary• Transform plate
boundary
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Layers of the Earth
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Lets look at your model
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92% of the ocean is 39o
In an area where fluids of different temperatures are
mixed what happens with the colder temperature fluids?