Pressure Solution Cleavage

Pressure-solution cleavage planes are inclined steeply to the right and are axial planar to the syncline defined by the alternating light and dark layers. Note that the layering shows offset along some of the more prominent cleavage traces. Photo credit: Robert Burger. Image from website: http://www.science.ubc.ca/~eoswr/slidesets/keck/keck.html