boudinage

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boudinage Minor structural feature in which competent strata resemble a series of sausages (‘boudins’) that form by the stretching of the competent units which, unlike incompetent ones, cannot deform plastically. Initially, local thickening and thinning occurs (‘pinch-and-swell’ structures); as deformation proceeds, complete separation between boudins may take place.

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boudinage

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