boudinage

From French boudinage. By surface analysis, boudin +‎ -age.

boudinage (countable and uncountable, plural boudinages)

1. (geology) A process in which a more competent layer is broken into sausage-shaped pieces as less competent layers surrounding it are deformed.
   • 2004, Richard P. Tollo, Proterozoic Tectonic Evolution of the Grenville Orogen in North America, Geological Society of America, →ISBN, page 789:

     Extreme attenuation and extensive chocolate-tablet boudinage of the plutonic complex that forms the uppermost Valley Spring domain occurred as the result of shortening perpendicular to S2 and extension parallel to it.

2. Synonym of boudin (“a sausage-shaped structure formed by this process”)
   • 1984, Geological Bulletin, University of Peshawar:

     The shaly host is usually elongate, lensoid, xenolith-like boudinages in the phyllitic country rocks. The boudinages are mostly rounded to oval, though elongate tongue like shapes are also common, and are characterized by […]

• boudinaged