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bioturbation Line breaks: bio|turb¦ation
Pronunciation: /ˌbʌɪəʊtəːˈbeɪʃ(ə)n/

Definition of bioturbation in English:


[mass noun] Geology
The disturbance of sedimentary deposits by living organisms.
Example sentences
  • In the broadest sense, any kind of sediment disturbance is bioturbation.
  • In the present article, we use high-resolution chemical and radiochemical data as the basis for a numerical simulation of sediment accumulation, bioturbation, and episodic deposition or erosion in a dynamic estuary.
  • Rates of sediment accumulation, differential bioturbation and preservational processes may also have influenced the final diversity of fossils in the rocks.


Example sentences
  • However, its stratigraphic position is constrained by the first appearance of bioturbated mud facies typical of the distal ice-shelf setting in the other cores, as well as by the shear strength data.
  • Sandbodies are abruptly overlain by bioturbated sandy muds with flint pebble horizons that represent transgressive reworking of the delta top and deepening into open shelf conditions.
  • The transition is characterized by the occurrence of nodular, bioturbated limestones that indicate a decrease in accumulation rate.


1960s: from bio- + Latin turbatio(n-), from turbare 'disturb'.

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