EARTHSC 1G03 Lecture Notes - Lecture 16: Thrust Fault, Sedimentary Rock, Fossil
4 May 2016
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Document Summary
Folds: ductile deformation (plastic) response of rock layers result in folds, permanent wavelike deformations in layered rocks, does not break. Ductile and brittle are affected by time, pressure, temperatures. If at lower temperature some rocks are brittle. Rocks are cold near earth surface. (tend to break) Strain rate: different rates cause rock to be brittle or rock. Lays in sedimentary rock, if you push on them they fold. However if they are going may become brittle and break if. Fracture with movement of rocks relative to each other and bedding is offset. Hanging wall pulls down from the football, its pulled apart. Mid-ocean ridges a series of normal faults. The grand canyons are normal faults and slid down on curved hanging faults. Normal faults - extension in the crust - rifts. Basin and range topography often caused by heating of deep crustal rocks. Depending on angle is reverse fault or thrust fault.
