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diagenesis
(redirected from diagenetically)

   Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.01 sec.

diagenesis

Sum of all processes, chiefly chemical, that produce changes in a sediment after its deposition but before its final lithification. Usually, not all the minerals in a sediment are in chemical equilibrium, so changes in interstitial water composition or in temperature or in both will lead to chemical alteration of one or more of the minerals present. Diagenesis is considered a relatively low-pressure, low-temperature alteration process that involves such processes as cementation, reworking, replacement, crystallization, and leaching.


diagenesis [‚dī·ə′jen·ə·səs]
(geology)
Chemical and physical changes occurring in sediments during and after their deposition but before consolidation.


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1987, Diagenetically enhanced bedding in argillaceous platform limestones: stratified cementation and selective compaction: Sedimentology, v.
 
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