GEOSC 020 Study Guide - Midterm Guide: Plate Tectonics, Radioactive Decay, Convergent Boundary
Document Summary
8. 1 c how do rocks respond to force and stress: displacement: movement, rotation: volume of rock is rotated in response to stress - example: hogback mountain. 8. 2 a 3 kinds of differential stress and resulting structures: compression (convergent, fracture and faulting-shallow, flow and folds-deep, tension (divergent, fracture-shallow, stretch-deep, shear (transform, fault-shallow, shear zone-deep ductile. 8. 3 a type of fractures: joint: a place where the rock has pulled apart by a small amount, fault: when rocks slip past one another (up/down, side-side, angles) 8. 4 c 3 main types of faults: dip-slip (vertical movement) diagonal, normal: hanging wall drops. Convergent: thrust: hanging wall moves up and over, strike-slip: horizontal movement, oblique-slip: horizontal and vertical movement. 8. 5 what are folds and how are they shaped: anticline: rock layers warp up in shape of an a, syncline: rock layers fold down in the shape of u. 8. 6 a what are some metamorphic structures: cleavage: perpendicular to fold, plunging, upright, asymmetric, overturned.
