bioturbation sentence in Hindi
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- Carbon sequestration takes place only if burial rates by sediment are greater than the long term rates of erosion, bioturbation, and decomposition.
- A-horizons may also be the result of a combination of soil bioturbation and surface processes that winnow fine particles from biologically mounded topsoil.
- It is also important to figure in bioturbation and the constant mixing of this material which can change the relative importance of each respiration pathway.
- In geology, mottled refers to a patchy / blotch texture of alteration or interbedding, commonly found in limestone and commonly caused by bioturbation.
- However, bioturbation, including burrowing animals, frost cracks, etc ., can reverse the structural timeline of an earthen mound such as Serpent Mound.
- Bioturbation by burrowing animals results in soil landscapes that are both polygenetic ( having many causes ) and polytemporal ( having been created at many times ).
- Besides exclusion and bioturbation effects of aerobic organisms, Fenchel and Riedl ( 1970 ) pioneered investigations into an unusual fauna inhabiting the suboxic regions of sediment.
- Fossils represented in the Walcott Rust quarry beds reflect a shelf community that developed during times of rather low net sedimentation and minimal bioturbation of the bottom.
- As it formed in an offshore position, in a subtidal wave-influenced environment, bioturbation is important and is translated by cross-bedding structures.
- Therefore, sea cucumbers play a major role in the biological processing of the sea bed ( bioturbation, purge, homogenization of the substratum etc . ).
- Bioturbation by burrowing marine organisms is common and indicates that they were deposited in an oxygenated environment, closer to the paleocoastline than the lower black shales were.
- It is likely that Echidnas are keystone species in the ecosystem health in Australia, due to their contribution through bioturbation, the reworking of soils through their digging activity.
- The Brussel Formation is subdivided into five cross-bedded non-calcareous sands alternating with thin beds of marl and clay or calcareous fine sands with traces of bioturbation.
- Johnson, D . L . 1989 . Subsurface stone lines, stone zones, artifact manuport layers, and biomantles produced by bioturbation via pocket gophers ( Thomomys bottae ).
- When properly considered in conjunction with local geology and bioturbation levels, the depth and character of the ARPD can provide profound insights into the interactions between sediment geochemistry and biologic activity.
- The worms also mechanically modify the physical structure of the soil as they crawl about ( bioturbation ), digest on the moulds of organic matter they pull from the soil litter.
- It was the first significant work on soil bioturbation, although that term was not used by Darwin ( it first appeared in the soil and geomorphic literature one hundred years later ).
- The vertical position of these boundaries can vary seasonally and locally in response to detrital supply and mixing ( due to bioturbation or physically mediated mixing ) as fast as 1 cm d-1.
- Charles Darwin's " The Formation of Vegetable Mould through the Action of Worms " } } is an example of a very early work on ichnology, describing bioturbation and, in particular, the burrowing of earthworms.
- Organic matter that sinks but is not buried by a sufficiently deep layer of sediment is subject to re-suspension by changing ocean currents, bioturbation by organisms that live in the top layer of marine sediments, and decomposition by heterotrophic bacteria.
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