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elastic deformation

A Dictionary of Earth Sciences | 1999 | | Copyright

elastic deformation Temporary deformation, from which material recovers, caused by an applied stress, such that on release of the stress the body reverts to its former, unstrained condition. In purely elastic materials such deformation is described by a linear stress—strain relationship (see HOOKE'S LAW). In rocks, ideal elastic strain is combined with viscous components.

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AILSA ALLABY and MICHAEL ALLABY. "elastic deformation." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "elastic deformation." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O13-elasticdeformation.html

AILSA ALLABY and MICHAEL ALLABY. "elastic deformation." A Dictionary of Earth Sciences. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-elasticdeformation.html

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plastic deformation

A Dictionary of Earth Sciences | 1999 | | Copyright

plastic deformation A deformation process which proceeds elastically at low stress values and becomes viscous when a critical stress value is reached. Plastic deformation occurs in rocks under conditions of high pressure and temperature, producing a permanent alteration of their shape but without failure by rupture.

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AILSA ALLABY and MICHAEL ALLABY. "plastic deformation." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "plastic deformation." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O13-plasticdeformation.html

AILSA ALLABY and MICHAEL ALLABY. "plastic deformation." A Dictionary of Earth Sciences. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-plasticdeformation.html

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