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Table of contents

Lecture #13- Faults and Faulting

Faults Bound the Major Plates

Rock Deformation

Slide 4

Rock Behavior

Rock Fractures (Faults & Joints)

Joints

Joints and Weathering

Fault Scarps

Faults (Fairview Valley, NV)

San Andreas (central CA)

Fault Structure

Faults Systems

California & Nevada Topography & California Faults

California Faults & Large Ruptures

Earthquakes and Faults

Hypocenter and Epicenter

Rupture Size

Fault Geometry Terminology

Dip (& Hanging Wall/Foot Wall)

Strike

Slip

Faulting Styles

Slip Direction

Normal Faulting

Slide 26

Reverse Faulting

Strike-Slip Faulting

SF ‘06 - Left or Right Lateral?

Oblique Faulting

Faulting Summary

Stress

Faulting and Stresses

Normal Faulting Stresses

Reverse Faulting Stresses

Strike-Slip Faulting Stresses

Stress & Faulting Summary

Faulting and Seismograms

Radiation Patterns

Faulting & Shear Waves

Radiation Patterns in 3D

Seismic “Beach Balls”

Representing a Plane

The Principal Mechanisms

Faults and Plates

Where are the Normal Faults?

Where are the Reverse Faults?

Where are the Transform Faults?

Example: East Africa

Summary

Author: Robert Herrmann

E-mail: rbh@eas.slu.edu

Homepage: http://www.eas.slu.edu/People/RBHerrmann/