Earthquakes Kim Lachler updated 10/2014 NCES 6.E.2.2.
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Transcript of Earthquakes Kim Lachler updated 10/2014 NCES 6.E.2.2.
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EarthquakesEarthquakes
Kim Lachler updated 10/2014
NCES 6.E.2.2
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EarthquakeEarthquake
Ground shakingGround shaking
Earthquakes.movEarthquakes.mov
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FaultingFaulting
a break in a body a break in a body of rock along of rock along which one block which one block slides relative to slides relative to another another
Fault blocks – Fault blocks – blocks on each blocks on each side of the faultside of the fault
Foot wall
- like a ramp
Hanging wall
- hang from it without touching it
Fault_Lines_and_Earthquakes.mov
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FaultingFaulting Normal FaultNormal Fault
– – rocks are pulled rocks are pulled apart by tensionapart by tension
What is this called for What is this called for tectonic plate tectonic plate boundaries?boundaries?
DivergentDivergent
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FaultingFaulting Reverse Fault Reverse Fault
– – rocks are pushed rocks are pushed together by together by compressioncompression
What is this called for What is this called for tectonic plate tectonic plate boundaries?boundaries?
ConvergentConvergent
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FaultingFaulting Strike- Slip fault (shear)Strike- Slip fault (shear)
– – rocks are moved horizontally rocks are moved horizontally by opposing forcesby opposing forces
What is this called for tectonic plate What is this called for tectonic plate boundaries?boundaries?
TransformTransform
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What creates an What creates an earthquakeearthquake Plastic deformation – Plastic deformation –
cause rock to bend cause rock to bend
Elastic deformation – Elastic deformation – causes rock to stretchcauses rock to stretch
Elastic rebound – Elastic rebound – causes the rock to causes the rock to snap backsnap back
Earthquake!Earthquake!
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Building of MountainsBuilding of Mountains
Folded Mountains Folded Mountains
– – when rock when rock layers are layers are squeezed together squeezed together and pushed and pushed upward upward
The Himalayas
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Building of MountainsBuilding of Mountains
Fault-Block Fault-Block MountainsMountains
– – When tension When tension causes rock to causes rock to break along a series break along a series of normal faults, of normal faults, resulting in resulting in different heights different heights
Hanging Hills
Connecticut
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Building of MountainsBuilding of Mountains
Volcanic Volcanic Mountains Mountains
– – along along convergent convergent boundariesboundaries
Baker Mountain, Washington
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BibliographyBibliography Holt, Rinehart & Winston, North Carolina, Holt, Rinehart & Winston, Orlando, Fl, 2005Holt, Rinehart & Winston, North Carolina, Holt, Rinehart & Winston, Orlando, Fl, 2005 USGA, tension stress, http://earthquake.usgs.gov/learn/glossary/?term=tensional stress, accessed USGA, tension stress, http://earthquake.usgs.gov/learn/glossary/?term=tensional stress, accessed
10/04/1010/04/10 Fold Mountains, Fold Mountains, http://en.wikipedia.org/wiki/Fold_mountainhttp://en.wikipedia.org/wiki/Fold_mountain, accessed 10/04/10, accessed 10/04/10 Fold, Fold, http://en.wikipedia.org/wiki/Fold_(geology)#Fold_terminology_in_two_dimensionshttp://en.wikipedia.org/wiki/Fold_(geology)#Fold_terminology_in_two_dimensions, accessed , accessed
10/04/1010/04/10 Fault, Fault, http://en.wikipedia.org/wiki/Fault_(geologyhttp://en.wikipedia.org/wiki/Fault_(geology), accessed 10/04/10), accessed 10/04/10 Mountain formation, Mountain formation, http://en.wikipedia.org/wiki/Mountain_formation#Fold_mountainshttp://en.wikipedia.org/wiki/Mountain_formation#Fold_mountains, acessed , acessed
10/04/1010/04/10 Fault-Block mountains, http://en.wikipedia.org/wiki/Fault-block_mountain, accessed 10/04/10Fault-Block mountains, http://en.wikipedia.org/wiki/Fault-block_mountain, accessed 10/04/10 Ask images, http://www.ask.com/pictures?qsrc=167&o=13755&l=dis&q=Earthquake%20Faults, Ask images, http://www.ask.com/pictures?qsrc=167&o=13755&l=dis&q=Earthquake%20Faults,
accessed 10/04/10accessed 10/04/10 Tylersciencewebsite, http://tylersciencewebsite.weebly.com/earthquakes.html, accessed 10/19/14Tylersciencewebsite, http://tylersciencewebsite.weebly.com/earthquakes.html, accessed 10/19/14 In. Gov,http://www.in.gov/dhs/2792.htm, accessed 10/19/14In. Gov,http://www.in.gov/dhs/2792.htm, accessed 10/19/14