Definition of bioturbation in English:

bioturbation

noun ˌbʌɪəʊtəːˈbeɪʃ(ə)nˌbīōtərˈbāSH(ə)n

mass nounGeology

The disturbance of sedimentary deposits by living organisms.
Example sentencesExamples
- 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.
- The random inclination of other concentrations of fragmentary specimens is indicative of post mortem disturbance due to bioturbation.
- 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.
- In the broadest sense, any kind of sediment disturbance is 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.

Derivatives

bioturbated

adjective

Geology

The transition is characterized by the occurrence of nodular, bioturbated limestones that indicate a decrease in accumulation rate.
Example sentencesExamples
- 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 high trace fossil abundance but low diversity in the heavily bioturbated horizons points to a relatively restricted or stressed environment.
- As the bioturbating activity of animals mixes faecal material into the primary sediment fabric, assumptions about clay mineral homogeneity in any given bioturbated sediment package may be erroneous.
- 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.

Origin

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

Definition of bioturbation in US English:

bioturbation

nounˌbīōtərˈbāSH(ə)n

Geology

The disturbance of sedimentary deposits by living organisms.
Example sentencesExamples
- 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.
- The random inclination of other concentrations of fragmentary specimens is indicative of post mortem disturbance due to bioturbation.
- Rates of sediment accumulation, differential bioturbation and preservational processes may also have influenced the final diversity of fossils in the rocks.
- 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.
- 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.

Origin

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

单词	bioturbation
释义	Definition of bioturbation in English: bioturbation noun ˌbʌɪəʊtəːˈbeɪʃ(ə)nˌbīōtərˈbāSH(ə)n mass nounGeology The disturbance of sedimentary deposits by living organisms. Example sentencesExamples 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. The random inclination of other concentrations of fragmentary specimens is indicative of post mortem disturbance due to bioturbation. 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. In the broadest sense, any kind of sediment disturbance is 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. Derivatives bioturbated adjective Geology The transition is characterized by the occurrence of nodular, bioturbated limestones that indicate a decrease in accumulation rate. Example sentencesExamples 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 high trace fossil abundance but low diversity in the heavily bioturbated horizons points to a relatively restricted or stressed environment. As the bioturbating activity of animals mixes faecal material into the primary sediment fabric, assumptions about clay mineral homogeneity in any given bioturbated sediment package may be erroneous. 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. Origin 1960s: from bio- + Latin turbatio(n-), from turbare 'disturb'. Definition of bioturbation in US English: bioturbation nounˌbīōtərˈbāSH(ə)n Geology The disturbance of sedimentary deposits by living organisms. Example sentencesExamples 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. The random inclination of other concentrations of fragmentary specimens is indicative of post mortem disturbance due to bioturbation. Rates of sediment accumulation, differential bioturbation and preservational processes may also have influenced the final diversity of fossils in the rocks. 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. 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. Origin 1960s: from bio- + Latin turbatio(n-), from turbare ‘disturb’.
随便看	become shrunken become silent become smaller become snagged become snarled up become solid become sore become stagnant become stale become stranded become stuck become sunny become supportive of become tangible become tattered become tedious become teetotal become tender become thin become thinner become thirsty become threadbare become tight/tighter become tiresome become trapped