Sediment
hideSediment is any particulate matter that can be transported by fluid flow, and which eventually is deposited.
Sediments are most often transported by water (fluvial processes) transported by wind (aeolian processes) and glaciers. Beach sands and river channel deposits are examples of fluvial transport and deposition, though sediment also often settles out of slow-moving or standing water in lakes and oceans. Desert sand dunes and loess are examples of aeolian transport and deposition. Glacial moraine deposits and till are ice transported sediments.
For more information about Sediment, read the full article at
Wikipedia.
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News tagged with sediment
Scientists pinpoint origin of dissolved arsenic in Bangladesh drinking water
Nov 15, 2009 |
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Researchers in MIT's Department of Civil and Environmental Engineering believe they have pinpointed a pathway by which arsenic may be contaminating the drinking water in Bangladesh, a phenomenon that has puzzled ...
California's Ancient Kelp Forest
Nov 10, 2009 |
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(PhysOrg.com) -- The kelp forests off southern California are considered to be some of the most diverse and productive ecosystems on the planet, yet a new study indicates that today's kelp beds are less extensive and lush ...
Deep-Sea Microbes May Answer Long-Standing Question About Earth's Nitrogen Cycle
Space & Earth / Earth Sciences
Oct 15, 2009 |
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(PhysOrg.com) -- Scientists have identified an unexpected metabolic ability in a symbiotic community of deep-sea microorganisms. It may help solve a lingering mystery about the world's nitrogen cycle.
Alfalfa sprouts hold the line on meandering streams (w/ Video)
Space & Earth / Earth Sciences
Oct 05, 2009 |
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(PhysOrg.com) -- Sinuous, meandering streams produce diverse and wildlife-rich habitats and are the aim of many river restoration efforts, but until now, the bank, water flow and sediment conditions required ...
Methane gas likely spewing into the oceans through vents in sea floor (w/ Video)
Space & Earth / Earth Sciences
Sep 02, 2009 |
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(PhysOrg.com) -- Scientists worry that rising global temperatures accompanied by melting permafrost in arctic regions will initiate the release of underground methane into the atmosphere. Once released, that ...
Scientists discover Amazon river is 11 million years old
Space & Earth / Earth Sciences
Jul 29, 2009 |
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Researchers at the University of Liverpool have discovered that the Amazon river, and its transcontinental drainage, is around 11 million years old and took its present shape about 2.4 million years ago.
Pacific tsunami threat greater than expected
Space & Earth / Earth Sciences
Jul 20, 2009 |
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The potential for a huge Pacific Ocean tsunami on the West Coast of America may be greater than previously thought, according to a new study of geological evidence along the Gulf of Alaska coast.
Global warming: Our best guess is likely wrong
Space & Earth / Earth Sciences
Jul 14, 2009 |
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No one knows exactly how much Earth's climate will warm due to carbon emissions, but a new study this week suggests scientists' best predictions about global warming might be incorrect.
Mummified dinosaur skin yields up new secrets
Other Sciences / Archaeology & Fossils
Jul 01, 2009 |
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(PhysOrg.com) -- Scientists from The University of Manchester have identified preserved organic molecules in the skin of a dinosaur that died around 66-million years ago.
The first evidence of pre-industrial mercury pollution in the Andes
May 18, 2009 |
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The study of ancient lake sediment from high altitude lakes in the Andes has revealed for the first time that mercury pollution occurred long before the start of the Industrial Revolution.
Martian rock arrangement not alien handiwork
Space & Earth / Space Exploration
Jan 07, 2009 |
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At first, figuring out how pebble-sized rocks organize themselves in evenly-spaced patterns in sand seemed simple and even intuitive. But once Andrew Leier, an assistant geoscience professor at the U of C, started observing, ...
From greenhouse to icehouse -- reconstructing the environment of the Voring Plateau
Space & Earth / Earth Sciences
Dec 15, 2009 |
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The analysis of microfossils found in ocean sediment cores is illuminating the environmental conditions that prevailed at high latitudes during a critical period of Earth history.
A novel, 10,000-year study of strata compaction and sea-level rise on English coast
Space & Earth / Earth Sciences
Dec 10, 2009 |
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Environmental scientists at the University of Pennsylvania and Durham University have employed a novel combination of geological and model reconstructions of wetland environments during a 10,000-year period ...
Study: Earth more sensitive to carbon dioxide than previously thought
Space & Earth / Earth Sciences
Dec 06, 2009 |
3.1 / 5 (50) |
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In the long term, the Earth's temperature may be 30-50% more sensitive to atmospheric carbon dioxide than has previously been estimated, reports a new study published in Nature Geoscience this week.
A closer look at the Hudson Canyon shows why the canyon is critical for fish
Space & Earth / Earth Sciences
Dec 01, 2009 |
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A series of newly discovered pits in the bottom of the Hudson Canyon, 100 miles southeast of New York Harbor, may be a key ingredient for the abundant and diverse marine ecosystem in and around the canyon, according to research ...
