CrustalDeformation

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Click to edit Master subtitle style 4/20/11 Crustal Deformation Kelly Blake Temple University
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4/20/11 Structural Geology Study of the architecture and processes responsible for deformation of the earth’s crust Different rock structures (folding, faulting, etc.) represent varying types of deformation and aid in the understanding of processes that are occurring today nasa.g usgs.g
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4/20/11 What is deformation anyway? A general term that refers to any change in the original form or shape of a rock body Usually it occurs along plate boundaries Force-Causes or changes the motion in an object Stress-Force applied to an area (Causes deformation)
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4/20/11 Crustal Deformation Compression, Tension and Shear are all types of Stress Strain is a result of stress Change in the shape or size of a rock body due to stress Crust deforms by folding, faulting or flowing
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4/20/11 Stress We see varying forms of stress in the plate boundaries
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4/20/11 Characteristics of Deformation Elastic-Rock returns to it’s original size and shape (Think a tennis ball) Ductile-Rock flows, and does not retain it’s original shape (Silly Putty) Brittle-Rock breaks and does not retain it’s original shape (Your leg)
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4/20/11 Deformation Factors which influence how a rock will deform: Temperature Confining Pressure Rock Type Time (Silly Putty) Due to the great amount of heat and
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4/20/11 Deformation Variation Slate->Phyllite->Schist- eiss Increase in Temperature Increase in Confining sure
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4/20/11 Increase in Depth Brittle Ductile
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This note was uploaded on 04/19/2011 for the course EES 2001 taught by Professor Thornburg during the Spring '11 term at Temple.

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CrustalDeformation - Crustal Deformation Click to edit...

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