Sediment cores from Lake Malawi in southern Africa show colder weather from 1570 to 1820.
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But this T. bataar had somehow been buried quickly in sediment, which then turned into rock.
In other words, instead of regulating the sediment directly, EPA decided that water was a pollutant.
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The stream now carries black sediment of waste coal which eventually flows into Lake Kariba.
But sediment is being lost at a rate of 700, 000 cubic metres a year.
Both lSI and SedNet promote and provide ample arguments for sustainable sediment management (SSM).
The soil erosion was measured through the needle erosion and the sediment in the runoff.
Eventually, however, the continued flow washed most of the sediment out of the canyon.
The amount of sediment available is three times greater than it was in 2004.
As that sediment dries and collapses it settles, and the city is settling with it.
That end is put into the sediment into which the pile is to be stuck.
Haas is taking sediment cores from a nearby lake that should tell him about climate changes 5, 000 years ago.
Several irrigation channels have dried up, while extra sediment in rivers has killed trout.
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Shaler is a classic example of cross-stratification - a structure produced from thin, inclined layers of sediment.
Clams also soften the sediment by expelling jets of water from between the valves of their shells.
Much of New Orleans is built on the geological equivalent of a down pillow: Mississippi River sediment.
The advance and retreat of the ice sheets can thus be discerned quite accurately from such sediment cores.
This has restrained the path of the Mississippi River and stymied its ability to naturally replenish sediment deposits.
Moncayo drove a stick into the creek bed and churned the mud until the water grew clouded by sediment.
Sediment: particles of rock covering a size range from clay to boulders.
The remaining bottles are to be disgorged in the same way as champagne, removing the majority of the sediment.
One of the essential parts of the river system is sediment, which forms a variety of habitats and environments.
Like an upside-down lava lamp, in time the sediment sinks under the salt.
The sediment grains bouncing along the bed get pushed up the rearward-facing slope (stoss) and then avalanche down the other side (lee).
Now they understand that as sediment builds up on top of salt, it pushes the salt out of the way.
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They did this through measurements of magnesium content in the shells of microscopic sea surface animals found in ocean sediment.
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They collect sediment in Comet Lake to search for diatoms, microorganisms whose skeletal remains allow scientists to reconstruct past climates.
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The six successful measurements did not involve Neanderthal bone but rather animal remains found in sediment layers associated with Neanderthals.
In all, the plutonium-powered, six-wheeled Curiosity carries 10 scientific instruments, including an analytical laboratory, to process mineral and sediment samples.
Lack of sediment has meant that local fish species have become extinct and the Grand Canyon's beaches have been severely eroded.
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