1 / 13

Understanding Earthquakes: Processes, Faults, and Mountain Formation

This overview explores the processes of deformation in rocks caused by stress, detailing how compression, tension, and folding shape the Earth's crust. It examines types of faulting including normal, reverse, and strike-slip faults at tectonic plate boundaries. We also discuss mountain formation, highlighting folded, fault-block, and volcanic mountains, with examples like the Himalayas and Baker Mountain. By understanding these geological processes, we gain insight into earthquakes and the dynamic nature of our planet.

kyrene
Télécharger la présentation

Understanding Earthquakes: Processes, Faults, and Mountain Formation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Earthquakes NCES 6.E.2.2 Kim Lachler 2010

  2. Deformation • Process by which the shape of a rock changes because of stress.

  3. Deformation • Compression –stress squeezes an object

  4. Deformation • Tension – stress stretches an object

  5. Deformation • Folding – stress causes bending

  6. Faulting Earthquakes.mov • a break in a body of rock along which one block slides relative to another • Fault blocks – blocks on each side of the fault Hanging wall - hang from it without touching it Foot wall - like a ramp

  7. Faulting • Normal Fault – rocks are pulled apart by tension What is this called for tectonic plate boundaries? Divergent

  8. Faulting • Reverse Fault – rocks are pushed together by compression What is this called for tectonic plate boundaries? Convergent

  9. Faulting • Strike- Slip fault – rocks are moved horizontally by opposing forces What is this called for tectonic plate boundaries? Transform

  10. Building of Mountains • Folded Mountains – when rock layers are squeezed together and pushed upward The Himalayas

  11. Building of Mountains • Fault-Block Mountains – When tension causes rock to break along a series of normal faults, resulting in different heights Hanging Hills Connecticut

  12. Building of Mountains • Volcanic Mountains – along convergent boundaries Baker Mountain, Washington

  13. Bibliography • Holt, Rinehart & Winston, North Carolina, Holt, Rinehart & Winston, Orlando, Fl, 2005 • USGA, tension stress, http://earthquake.usgs.gov/learn/glossary/?term=tensional stress, accessed 10/04/10 • Fold Mountains, http://en.wikipedia.org/wiki/Fold_mountain, accessed 10/04/10 • Fold, http://en.wikipedia.org/wiki/Fold_(geology)#Fold_terminology_in_two_dimensions, accessed 10/04/10 • Fault, http://en.wikipedia.org/wiki/Fault_(geology), accessed 10/04/10 • Mountain formation, http://en.wikipedia.org/wiki/Mountain_formation#Fold_mountains, acessed 10/04/10 • Fault-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, accessed 10/04/10

More Related