bottom sediment वाक्य
उदाहरण वाक्य
मोबाइल
- A "'water column "'is a conceptual column of water from the surface of a sea, river or lake to the bottom sediments.
- Since the late 19th century, dredging of river bottom sediments has been done to allow large ships to enter the Fox River.
- The heavier bottom sediment layer is removed by a chain and flight scraper ( or similar device ) and a sludge pump.
- It is a small ( up to 5 mm ) species which burrows in bottom sediments, between 10 and 80 metres deep.
- One thought is that this trilobite may have lain in wait for prey buried in the bottom sediment with only its periscope eyestalks protruding.
- A tiny copepod crustacean, " Leptocaris stromatolicolus ", is known only from the interstices of these stromatolites and bottom sediments in the saline pools.
- Hexasterophorans have skeletons composed of overlapping six-rayed substratum; less often rooted by the anchoring spicules and rarely inserted directly into the loose bottom sediments.
- When the cyanobacteria die and sink to the bottom they consume oxygen leading to further hypoxia and more phosphorus is released from bottom sediments.
- In the environment endrin exists as either endrin aldehyde or endrin ketone and can be found mainly in bottom sediments of bodies of water.
- The material that was thrown into the air by the steam, mainly old lake bottom sediments, was deposited around the new vent in little mounds.
- They scrape and bite food of many kinds as well as stirring up the bottom sediment, filtering out larger particles with the papillae around their mouths.
- The potential for TP to leave the bottom sediments and become available to algae in the water column ( internal loading ) is low to moderate.
- The depth of the oxic / anoxic interface separating the two layers varies from a few centimeters to near the bottom sediments, depending on local conditions.
- This made the bottom sediments more hospitable, and allowed a wider range of organisms to inhabit them creating new niches and the scope for higher diversity.
- The exposed lake bottom sediments were blown by the prevailing westerly winds to form the sand dunes that still lie on the east side of Summer Lake.
- For instance, a suitably weighted metal tube, hack-sawed off like a giant hypodermic syringe, with a cord attached for retrieval, can by used to get bottom sediment samples.
- Seismic studies by the Russians indicate that the lake water could be more than 2, 000 feet deep, with bottom sediments about 500 feet deep at one end.
- Many of those chemicals, including PCBs, seem to enter the food chain as they seep out of the lake-bottom sediments where they've settled over decades of industrial use.
- What makes this location special is that the calcareous ocean-bottom sediment that was deposited here never turned to hard stone as it does almost everywhere else in the region.
- An expedition last year found that concentrations of Cesium-137 and Strontium-90 in bottom sediments at two of the dumps were dozens of times above normal levels, the statement said.
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