News tagged with sediment
Farm ponds cut agricultural water pollution
The reintroduction of farm ponds could significantly reduce agricultural pollution in our streams and rivers, according to new research.
Jun 01, 2012 |
4.8 / 5 (4) |
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Rapid coral death by a deadly chain reaction
(Phys.org) -- Most people are fascinated by the colorful and exotic coral reefs, which form habitats with probably the largest biodiversity. But human civilisation is the top danger to these fragile ecosystems ...
May 24, 2012 |
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Thawing permafrost 50 million years ago led to extreme global warming events
In a new study reported in Nature, climate scientist Rob DeConto of the University of Massachusetts Amherst and colleagues elsewhere propose a simple new mechanism to explain the source of carbon that fed a ...
Space & Earth / Earth Sciences
Apr 04, 2012 |
4.3 / 5 (28) |
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New map reveals giant fjords beneath East Antarctic ice sheet
Scientists from the U.S., U.K. and Australia have used ice-penetrating radar to create the first high- resolution topographic map of one of the last uncharted regions of Earth, the Aurora Subglacial Basin, ...
Space & Earth / Earth Sciences
Jun 01, 2011 |
not rated yet |
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Geologists map prehistoric climate changes in Canada's Yukon Territory
Researchers at the University of Pittsburgh have joined an international group of scientists to study past climate changes in the Arctic. Comprising geologists from Pitt's Department of Geology and Planetary Science, the ...
Space & Earth / Earth Sciences
May 08, 2012 |
3.5 / 5 (2) |
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Paleo-Indians settled North America earlier than thought: study
New discoveries at a Central Texas archaeological site by a Texas A&M University-led research team prove that people lived in the region far earlier – as much as 2,500 years earlier – than previously ...
Other Sciences / Archaeology & Fossils
Mar 24, 2011 |
4.3 / 5 (15) |
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Scientists discover first multicellular life that doesn't need oxygen
(PhysOrg.com) -- Oxygen may not be the staple of modern complex life that scientists once thought. Until now, the only life forms known to live exclusively in anoxic conditions were viruses, bacteria and Archaea. ...
Apr 07, 2010 |
4.7 / 5 (73) |
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Methane may be answer to 56-million-year question
(PhysOrg.com) -- The release of massive amounts of carbon from methane hydrate frozen under the seafloor 56 million years ago has been linked to the greatest change in global climate since a dinosaur-killing ...
Space & Earth / Earth Sciences
Nov 09, 2011 |
4.9 / 5 (21) |
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Research explains mystery of ocean sediment
(PhysOrg.com) -- New research by an international team of researchers has revealed the previously unidentified role that fish play in the production of sediments in the world's oceans.
Space & Earth / Earth Sciences
Mar 01, 2011 |
4.8 / 5 (8) |
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Fastest sea-level rise in two millennia linked to increasing temperatures
(PhysOrg.com) -- An international research team including University of Pennsylvania scientists has shown that the rate of sea-level rise along the U.S. Atlantic coast is greater now than at any time in the ...
Space & Earth / Earth Sciences
Jun 20, 2011 |
4 / 5 (17) |
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Massive volcanoes, meteorite impacts delivered one-two death punch to dinosaurs: study
(PhysOrg.com) -- A cosmic one-two punch of colossal volcanic eruptions and meteorite strikes likely caused the mass-extinction event at the end of the Cretaceous period that is famous for killing the dinosaurs ...
Space & Earth / Earth Sciences
Nov 17, 2011 |
5 / 5 (10) |
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Scientists core into California's Clear Lake to explore past climate change
(Phys.org) -- University of California, Berkeley, scientists are drilling into ancient sediments at the bottom of Northern California's Clear Lake for clues that could help them better predict how today's ...
Space & Earth / Earth Sciences
May 03, 2012 |
5 / 5 (2) |
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Arabic records allow past climate to be reconstructed
Corals, trees and marine sediments, among others, are direct evidence of the climate of the past, but they are not the only indicators. A team led by Spanish scientists has interpreted records written in Iraq ...
Space & Earth / Earth Sciences
Apr 30, 2012 |
5 / 5 (6) |
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New research points to the significant role of oceans in ancient global cooling (w/ video)
(PhysOrg.com) -- Thirty-eight million years ago, tropical jungles thrived in what are now the cornfields of the American Midwest and furry marsupials wandered temperate forests in what is now the frozen Antarctic. ...
Space & Earth / Earth Sciences
May 26, 2011 |
4.8 / 5 (6) |
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Antarctic sea temperatures cooled in Holocene but now rising: study
(PhysOrg.com) -- A new study of an ocean sediment core taken from deep water off the coast of the western Antarctic Peninsula is beginning to fill in some of the gaps in our knowledge of climate variability ...
Space & Earth / Earth Sciences
Feb 10, 2011 |
4.2 / 5 (18) |
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Sediment
Sediment 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.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
