[ dahy-uh-jen-uh-sis ]

  1. the physical and chemical changes occurring in sediments between the times of deposition and solidification.

Origin of diagenesis

From New Latin, dating back to 1885–90; see origin at dia-, -genesis

Other words from diagenesis

  • di·a·ge·net·ic [dahy-uh-juh-net-ik], /ˌdaɪ ə dʒəˈnɛt ɪk/, adjective

Words Nearby diagenesis

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British Dictionary definitions for diagenesis


/ (ˌdaɪəˈdʒɛnɪsɪs) /

  1. the sum of the physical, chemical, and biological changes that take place in sediments as they become consolidated into rocks, including compaction and cementation, but excluding weathering and metamorphic changes

  2. chem recrystallization of a solid to form large crystal grains from smaller ones

Derived forms of diagenesis

  • diagenetic (ˌdaɪədʒəˈnɛtɪk), adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for diagenesis


[ dī′ə-jĕnĭ-sĭs ]

  1. The process by which sediment undergoes chemical and physical changes during its lithification (conversion to rock). Compaction, leaching, cementation, and recrystallization are all forms of diagenesis. Erosion and metamorphism are not. Oil, gas, and coal form through the diagenesis of organic sedimentary matter.

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