schistosity

A Dictionary of Earth Sciences | 1999 | 397 words | Copyright

schistosity The planar alignment of platy micas and elongate amphiboles in a regional metamorphic rock. The alignment of these minerals into a planar fabric is caused by (a) the physical rotation of the mineral grains under the influence of a shear stress, or (b) the syntectonic, metamorphic growth of new minerals with their long axes perpendicular to the principal compressive stress direction.

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AILSA ALLABY and MICHAEL ALLABY. "schistosity." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "schistosity." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O13-schistosity.html

AILSA ALLABY and MICHAEL ALLABY. "schistosity." A Dictionary of Earth Sciences. 1999. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-schistosity.html

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