Geology 3443 Spring 2006 Chapter 5 – Rheology 5.1 Introduction 1. What is rheology? 2. What are strain rate and its dimensions? What are the ranges of geological strain rates? 5.2 Creep 3. What is creep? How is it measured? What are the typical phases or regimes that a rock goes through under stress? 5.3.1 Elasticity 4. What are the equations for elastic behavior of rocks? Why is elasticity called linear? 5. Why are there three elastic equations? What are their constants called? What are their units (dimensions)? 6. What is Poisson’s ratio? What does it measure? 7. What happens when stress is removed? Where does the energy come from to produce seismic waves? 5.3.2 Viscosity 8. What equation describes viscous behavior of a material? How is it different from elasticity? Why are both viscous and elastic equations considered linear? 9. How is a viscous material different from an elastic one when stress is removed?
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