Chapter 11 (1)

Chapter 11 (1) - Chapter 11 Introduction deformation: a...

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Chapter 11 Introduction deformation: a process by which rocks change shape, tilt, or break in response to squeezing, streching, or shearing Deformation produces geologic structures including joints(cracks), faults (fractures along which one body of rock slides past another), folds (bends or wrinkles), and foliation (layering resulting from the alignment of mineral grains or the development of compositional bands) Mountain belts and the concept of orogeny Mountain belts: mountains do not occur in isolation, rather as parts of linear ranges Orogens: orogenic belts Orogeny: a mountain-building event Orogens develop because of subduction at convergent plate boundaries, rifting, continental collisions, and locally, because of motion on transform faults Rock Deformation in the Earth's Crust Brittle deformation: material breaks into two or more peices Ductile deformation: material changes shape without breaking Why do rocks inside the Earth sometimes deform?
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This note was uploaded on 02/01/2012 for the course GEOLOGY 100 taught by Professor Lepre during the Fall '11 term at Rutgers.

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Chapter 11 (1) - Chapter 11 Introduction deformation: a...

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