Definition of stylolite in English:



  • 1An irregular surface or seam within a limestone or other sedimentary rock, characterized by irregular interlocking pegs and sockets around 1 cm in depth and a concentration of insoluble minerals.

    • ‘This produces sutured interpenetrative contacts between grains, and these may form thin extensive sheets of concentrations of insoluble material called stylolite seams.’
    1. 1.1 A grooved peg forming part of a stylolite.
      • ‘Folds, cleavages, tension gashes and stylolites were also taken into account.’
      • ‘It cuts indiscriminately through the rock fabric, across grains, cement, and matrix; it may truncate fossils, ooliths, veins, and other stylolites.’
      • ‘Owing to compactional processes, the more vertical burrow parts may be stacked into each other and commonly are affected by stylolites.’
      • ‘Owing to diagenetic effects, the vertical burrow parts commonly are compacted and may bear stylolites, whereas the inner parts of the tunnels especially are affected by sponge-like growth of celestine crystals.’


Mid 19th century: from Greek stulos ‘column’ + -lite.