Download - Plate Tectonic Notes
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
Plate Tectonic Notes
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
Stress is the amount of force per unit area put on a given object.
Deformation is the rock changing due to stress.
*Three things determine how much stress a rock can handle: composition, temperature and amount of pressure.
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
Compression is when two plates collide. (squeezing)
Tension is when two plates pulling away from each other. (stretching)
Cite: http://www.solaster-mb.org/mb/images/dyrynda-tectonics-1-wl.GIF
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
Folding is the bending of rock
Anticline are arch-shaped folds.
Syncline are trough-shaped folds.
Monocline are rocks that have vertical stress and the ends are still horizontal.
AnticlineCite:http://www.salem.k12.va.us/staff/flester/lester/foldsandfaults/anticline.gif
Syncline
Cite: http://www.salem.k12.va.us/staff/flester/lester/syncline.gif
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
MonoclineCite: http://www.nps.gov/brca/Geodetect/Photo%20book/LF%20pix/images/Monocline%20Cross%20Section%20_TIF.jpg
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
Cite: http://www.geosci.unc.edu/faculty/glazner/Images/Structure/Monocline.jpg
Monocline in the Mojave Desert, California
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
• Cite: http://www-class.unl.edu/geol101i/images/structure%20images/anticline%20from%20Wind%20Rivers.jpg
Anticline in Wind Rivers, Wyoming
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
Cite: http://users.ipfw.edu/isiorho/Syncline.JPG
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
Faulting is breaking of rocks
Footwall is one side of the rock.
Hanging wall is the other side of the rock.
A normal fault is when the rocks pull away from each other, the hanging wall moves down.
A reverse fault is when rocks are pushed together, the hanging wall is pushed up.
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
Normal Fault
Cite: http://www.calstatela.edu/faculty/acolvil/struct/normal_animation.gif
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
Reverse Fault
Cite: http://www.earthsci.org/struct/fault/reverse.gif
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
Strike-slip Fault is when the rock breaks and move horizontally.
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Chapter 17 Section 3 Spring 2006, Pflugerville ISD
Strike Slip Fault
Cite: http://darkwing.uoregon.edu/~nfay/home/right_lateral_fault.gif
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Chapter 17 Section 4 Spring 2006, Pflugerville ISD
Mountain Building Notes
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Chapter 17 Section 4 Spring 2006, Pflugerville ISD
Most mountain ranges form where plates collide- convergent boundary.
Uplift is the process by which regions of the crust are raised to a higher elevation.
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Chapter 17 Section 4 Spring 2006, Pflugerville ISD
Cite: http://www.calstatela.edu/faculty/acolvil/plates/subduction.jpg
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Chapter 17 Section 4 Spring 2006, Pflugerville ISD
Folded Mountains are formed when rock layers are squeezed together. Appalachians
Fault - Block Mountains are formed when faulting causes large blocks of the crust to drop down. Tetons
Volcanic Mountains are formed when molten rocks erupts onto the Earth’s surface. Divergent boundary.
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Chapter 17 Section 4 Spring 2006, Pflugerville ISD
Fault Block Mountains
Citehttp://cse.cosm.sc.edu/erth_sci/Metamorf/ue3588.jpg:
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Chapter 17 Section 4 Spring 2006, Pflugerville ISD
Cite: http://cse.cosm.sc.edu/erth_sci/Metamorf/ue1868.jpg
Folded Mountains in Canada
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Chapter 17 Section 4 Spring 2006, Pflugerville ISD
Volcanic Mountain
Cithttp://cse.cosm.sc.edu/erth_sci/Metamorf/ss5_3.jpge: