Definition of bioturbation in English:

bioturbation

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

noun

[mass noun] Geology
  • The disturbance of sedimentary deposits by living organisms.
    More 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.

Derivatives

bioturbated

adjective
More 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.

Origin

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

More definitions of bioturbation

Definition of bioturbation in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space