Article · Wikipedia archive · Last revised May 27, 2026

Lithification

Lithification is the process in which sediments compact under pressure, expel connate fluids, and gradually become solid rock. Essentially, lithification is a process of porosity destruction through compaction and cementation. Lithification includes all the processes which convert unconsolidated sediments into sedimentary rocks. Petrifaction, though often used as a synonym, is more specifically used to describe the replacement of organic material by silica in the formation of fossils.

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Lithification (from the Ancient Greek word lithos meaning 'rock' and the Latin-derived suffix -ific) is the process in which sediments compact under pressure, expel connate fluids, and gradually become solid rock. Essentially, lithification is a process of porosity destruction through compaction and cementation. Lithification includes all the processes which convert unconsolidated sediments into sedimentary rocks. Petrifaction, though often used as a synonym, is more specifically used to describe the replacement of organic material by silica in the formation of fossils.1

See also

See also

  • Concretion – In geology, a type of compact mass
  • Diagenesis – Physico-chemical changes in sediments occurring after their deposition
  • Lithology – Description of the physical characteristics of a rock unit
  • Parent rock – Original rock substratum
  • Petrifaction – Process of fossilization
  • Weathering – Deterioration of rocks and minerals through exposure to the elements
References

References

  1. Monroe, J.S.; Wicander, R.; Hazlett, R.W. (2006). Physical Geology: Exploring the Earth (6th ed.). Belmont: Thomson. pp. 203–204. ISBN 9780495011484.