- IRIS: Fault Motion Animations
Presents demonstrations of the four different types of fault motion.
www.iris.edu/gifs/animations/faults.htm
- Wikipedia: Geologic Fault
Hyperlinked, in-depth description of discontinuities in the Earth's crust. Explains the differences between normal, strike-slip, and thrust faults.
en.wikipedia.org/wiki/Geologic_fault
- Understanding Earthquakes: Elastic Rebound Animation
Features a QuickTime movie demo explanation of a fault zone.
www.crustal.ucsb.edu/ics/understanding/elastic/rebound.html
- Southern California Integrated GPS Network (SCIGN): Faults
Details the different types of plate boundaries, with animated imagery and photos of the Sierra Madre Fault.
scign.jpl.nasa.gov/learn/plate6.htm
- University of Wisconsin: Faults and Earthquakes
Extensive article that asks, what causes earthquakes? Discusses fault structures, seismograph readings, and the Earth's interior.
www.uwgb.edu/dutchs/EarthSC202Notes/quakes.htm
- Faults and Fault Zones
Photo gallery highlighting a number of different geologic fault features in nature including: normal faults, reverse or thrust faults, strike-slip faults, fault contacts, and fault gouges.
www.uoregon.edu/~millerm/faults.html
- UC Berkeley Seismological Laboratory: What is a Fault?
Definitions adapted from The Earth, by F. Press and R. Siever.
seismo.berkeley.edu/seismo/faq/fault_0.html
- Visual Glossary of Geologic Terms: Faults
Details normal, reverse, and strike-slip faults. Provided by the U.S. Geological Survey.
www2.nature.nps.gov/geology/usgsnps/deform/gfaults.html
- Talk Origins: Thrust Faults
Offers an explanation of the mechanics of motion along thrust faults, with photos and examples of the Lewis Thrust working beneath Chief Mountain in Glacier National Park.
www.talkorigins.org/faqs/lewis
- University of Leeds: Faults
Describes faults and stress, thrusts, and soft-linked fault systems. Includes picture gallery.
earth.leeds.ac.uk/faults
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