Download Hydrologic and Rock Cycles

The Hydrologic Cycle
• Where is the water?
• The global cycle
• Groundwater
– The myth of underground rivers
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Water source
Oceans
Icecaps, Glaciers
Ground water
Fresh-water lakes
Inland seas
Soil moisture
Atmosphere
Rivers
Total water volume
Water volume, in Percent of
cubic miles
total water
317,000,000
97.24%
7,000,000
2,000,000
30,000
2.14%
0.61%
0.009%
25,000
16,000
0.008%
0.005%
3,100
0.001%
300
326,000,000
0.0001%
100%
From USGS, similar to CS Table 17.2 3
How much of water is usable by humans?
CS Figure 17.6
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LH
LH
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DRY!
WET!
CS Fig. 17.3 6
CS Fig. 17.2
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CS Fig. 17.8
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From USGS
Porosity = spaces in rock
Permeability = connectedness of spaces in rock
Water table = level below which all spaces filled
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An aquifer is a porous, water-bearing
layer of sand, gravel or rock
Impermeable!
Permeable!
Permeable!
CS Fig. 17.9
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The Rock Cycle
• Structure of the Earth
• Plate Tectonics
• Rocks and the Rock Cycle
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Fig. 14.2
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Fig. 14.3
Map of Tectonic Plates
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CS Fig.
14.5
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Fig. 14.4
Tectonic plate movement
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Subduction animation
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Types of Plate Boundaries
 Divergent
i.e. mid ocean ridges
-Plates move away from each other
 Convergent
i.e. subduction zones
-Plates move towards each other
 Transform
-Plates slide past each other
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Dec. 26
Earthquake
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CS Fig. 14.3
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Model of
Tsunami
inflow and
outflow at
Phuket,
Thailand
Choowong
et al., 2008
Marine
Geology
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Tsunami Links
• NY times
• http://whyfiles.org/2011/tsunami-the-killer-wave/
• http://www.cnn.com/video/#/video/world/2011/03
/11/sot.tsunami.hit.japan.cnn
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Surface of the Earth
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South American Trench
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Atlantic Ocean Basin
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The Rock
Cycle
CS Fig. 14.8
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Recent Lava Flow
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The End.
Back
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