Definition of cataclasis in English:

cataclasis

noun

Geology
  • [mass noun] The fracture and breaking up of rock by natural processes.

    • ‘Close to the tectonic contact with the Mesozoic-Cenozoic cover there is a wide zone of cataclasis.’
    • ‘For example, cataclasis is a fracture-related process that changes a fault from a simple pair of moving surfaces to a zone containing deformed, poorly sorted, fractured, fine-grained material by converting country rock to fault rock.’
    • ‘Field-based and microstructural studies of the Zuccale fault reveal that an initial phase of pervasive cataclasis increased fault zone permeability, promoting influx of CO2-rich hydrous fluids.’

Origin

1950s: from cata- ‘completely’ + Greek klasis breaking.

Pronunciation:

cataclasis

/ˌkatəˈkleɪsɪs/