One of the mysteries of the English language finally explained.
The disturbance of sedimentary deposits by living organisms.
- ‘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.’
- ‘In the broadest sense, any kind of sediment disturbance is bioturbation.’
- ‘Rates of sediment accumulation, differential bioturbation and preservational processes may also have influenced the final diversity of fossils in the rocks.’
- ‘The random inclination of other concentrations of fragmentary specimens is indicative of post mortem disturbance due to bioturbation.’
- ‘The abrupt facies shift, bioturbation and cemented nature of the surfaces suggests that they represent marine flooding surfaces, formed during a rapid rise in relative sea level and/or a reduction in sediment supply.’
- ‘Grey massive mudstone beds may also form as a result of rapid deposition by floods or of homogenization resulting from bioturbation by roots or animals.’
1960s: from bio- + Latin turbatio(n-), from turbare ‘disturb’.
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