1 / 8

Deforming the Earth's Crust

Deforming the Earth's Crust. Deformation. Stress-the amount of force per unit area on a given material Deformation-the process by which the shape of a rock changes because of stress Compression-when two tectonic plates collide and squeeze together

vala
Download Presentation

Deforming the Earth's Crust

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. Deforming the Earth's Crust

  2. Deformation • Stress-the amount of force per unit area on a given material • Deformation-the process by which the shape of a rock changes because of stress • Compression-when two tectonic plates collide and squeeze together • Tension-stress that occurs when two forces act to stretch an object

  3. Folding • The bending of rock layers because of stress in the Earth’s crust • Types of folding • Anticlines-upward arching fold • Syncline-downward, trough-like fold • Monocline-rock layers are folded so that both ends of the fold are horizontal

  4. http://z.about.com/d/geology/1/0/X/L/anticline.jpg www.dcnr.state.pa.us/.../images/syncline.jpg

  5. Faulting • The surface along which rocks break and slide past each other • Normal faults-when rocks are pulled apart because of tension • Reverse faults-when rocks are pushed together by compression • Strike-slip-form when opposing forces cause rock to break and move horizontally

  6. facweb.bhc.edu/.../Study/Images/NormalFault.gif facweb.bhc.edu/.../study/Images/ReverseFault.gif

  7. www.hp1039.jishin.go.jp/.../figures/af1-2.jpg

More Related