Class Notes (839,150)
United States (325,799)
Geology (192)
GEOL105 (163)
Dr.Ed Kohut (115)
Lecture 8

GEOL105 Lecture 8: GEOL105 Lecture

4 Pages

Course Code
Dr.Ed Kohut

This preview shows page 1. Sign up to view the full 4 pages of the document.
220 Earthquakes What is an earthquake? o Energy traveling through the earth as vibrations Causes o Movement along faults o Volcanic eruptions o Explosions o Impacts Faults and quakes o Fault: fracture in the crust along which there has been movement (displacement) o Stress in the crust can cause Blocks of crust along a fault to move Energy in moving fault blocks causes vibrations If the movement is sudden and rapid, strong vibrations (seismic waves) result Earthquake! Fault orientation o Geologists need a way to describe how a fault is oriented in space o Strike: direction of an imaginary horizontal line on surface o Dip: angle of a surface from horizontal 090, 90 is vertical Type of faults o Classified by movement direction o Movement direction depends on the type of stress in crust o Normal Faults Vertical or near vertical movement (dip slip) Tension (stress pulling away from fault) Hanging wall moves DOWN, Footwall UP o Reserves or thrust fault
More Less
Unlock Document

Only page 1 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.