Definition of stylolite in English:

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Pronunciation: /ˈstʌɪlə(ʊ)lʌɪt/


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.
Example sentences
  • This produces sutured interpenetrative contacts between grains, and these may form thin extensive sheets of concentrations of insoluble material called stylolite seams.
1.1A grooved peg forming part of a stylolite.
Example sentences
  • It cuts indiscriminately through the rock fabric, across grains, cement, and matrix; it may truncate fossils, ooliths, veins, and other stylolites.
  • Folds, cleavages, tension gashes and stylolites were also taken into account.
  • 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.

For editors and proofreaders

Line breaks: stylo|lite

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