GLY 2010C Lecture Notes - Lecture 23: Hot Air Balloon, Tectonic Uplift, Continental Collision
Document Summary
What is strain caused by? force acting on rock or stress. What is stress? the force applied across a unit area. What are the types of stress? compression, tension, shear. When does shear develop? when surfaces slide past one another. _______ when an object feels the same amount of stress on all sides pressure. The 3d orientation of a plane is described by what? strike and dip. What is strike? horizontal intersection with a tilted surface. What is dip? the angle of the surface down from the horizontal. What are joints? planar rock fractures without any off-set. What do joints develop from? tensile tectonic stress in brittle rock. What do joints control? weathering of the rock they occur in. What are faults in comparison to joints? planar fractures showing displacement. What are oblique slip faults? components of both dip and strike slip faults. What does brittle faulting result in? shattered and crushed rock.
