GLY-1103 Lecture 3: Earthquakes notes
Document Summary
Earthquakes around here: fault in charleston, sc has had many large events in recent past (centuries, earthquakes in 1886 caused volcano scare in hickory nut gorge, nc - how. Stress: stress is force applied to an object, stress can be compressional, tensile, or shear, shear > __ Strain (when you apply stress to an object: strain - deformation in that object, elastic deformation - returns to original shape after stress is removed, plastic deformation - small additional stress leads to permanent alteration. Brittle vs ductile materials: brittle: when stress too high it breaks, ductile: more like silly putty than breakage. How stress and strain lead to earthquakes: snapback called elastic rebound and brittle because fault line there, it broke. Reverse and thrust faults: how to id reverse/thrust fault, block on top of slide goes up (not normal, hurt - hanging wall up reverse/thrust, ***reverse/thrust @ convergent boundaries**, remember compressional stress.
