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Fault Types

Fault Types. By Ashlyn Boswell. Thrust Fault. Reverse Fault. Normal Fault. Strike Slip Fault. Strike Slip Fault. The most famous strike slip fault in the United States is the San Andreas Fault in California. Earthquakes are most common along strike slip faults.

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Fault Types

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  1. Fault Types By Ashlyn Boswell

  2. Thrust Fault Reverse Fault Normal Fault Strike Slip Fault

  3. Strike Slip Fault • The most famous strike slip fault in the United States is the San Andreas Fault in California. • Earthquakes are most common along strike slip faults. • A strike slip fault occurs when two plates slide past one another in a parallel motion. http://geomaps.wr.usgs.gov/parks/deform/strikeslip.gif

  4. Normal Fault • Normal faults exist everywhere in the United States, but they are most prevalent in the Rocky Mountain areas of Utah. • Normal faults occur through a force called tension, which is the pulling apart of tectonic plates. • In a normal fault, the footwall is above the hanging wall. http://facweb.bhc.edu/academics/science/harwoodr/GEOL101/study/Images/NormalFault.gif

  5. Reverse Fault • The reverse fault that we will be focused on are the reverse faults close to Seattle, Washington. • Reverse faults are caused by a force called compression, which is the pushing together of tectonic plates. • In a reverse fault, the hanging wall is above the footwall. http://facweb.bhc.edu/academics/science/harwoodr/GEOL101/study/Images/ReverseFault.gif

  6. Thrust Fault • The thrust fault we will by studying is the Mississippian Madison Formation in Montana. • A thrust fault is caused by the compression force, which is the pushing together of two tectonic plates. • A thrust fault is very similar to a reverse fault, but the fault plane is less than thirty degrees in a thrust fault. http://facweb.bhc.edu/academics/science/harwoodr/GEOL101/study/Images/Thrust.gif

  7. Quiz Question 1: What type of fault most commonly produces Earthquakes? Answer…

  8. Quiz Question 2: What type of fault has a fault plane of less than thirty degrees? Answer…

  9. Quiz Question 3: What type of fault is caused by tension? Answer…

  10. Quiz Question 4: Which fault type is characterized by the footwall being pressed under the hanging wall? Answer…

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