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Diagenesis

Definition

Postmortem physical, chemical and biological alteration of material. Those processes can affect appearance, composition and preserved biological information. Alteration does not follow one universal calendar. Its consequences depend on material, environment and the analytical question.

Context
Postmortem alteration

For example, environmental alteration can change the measured properties of buried material without providing one universal burial-age estimate.

Related terms

Demineralisation
Removal or dissolution of mineral under specified preparation conditions. Demineralisation can make mineralised tissue more accessible, while lysis disrupts cells or tissue...
Osteoblast
An osteoblast is a cell that produces bone matrix and contributes to mineralisation during bone formation. Its biological role differs from that...
Osteocyte
An osteocyte is a bone cell embedded within the tissue matrix and involved in its regulation. Its identification describes a cellular structure,...
Osteon
An osteonal unit contains concentric lamellae around a vascular canal. Secondary osteons record remodelling; size and shape vary and overlap among species,...

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