fold

fold


fold    Audio Help   (fōld)  Pronunciation Key 


A bend in a layer of rock or in another planar feature such as foliation or the cleavage of a mineral. Folds occur as the result of deformation, usually associated with plate-tectonic forces.

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.


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