Boudinage refers to a structure formed when a layer of rock is stretched and deformed into segments resembling a string of sausages, known as “boudins.” This occurs during ductile deformation under tension, typically in layered rocks. Boudinage provides insights into the stress and strain conditions during tectonic deformation and is often studied in the context of structural geology.
Source Ramsay, J. G. (1967). Folding and Fracturing of Rocks. McGraw-Hill.