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Latest Erosion Stories

Youth Therapy For Scandinavia's Glaciers And Landscape
2012-09-24 11:45:58

The high elevation flat surfaces characteristic of the Norwegian landscape are in geologically terms young, according to a paper in Nature Geoscience. In a paper recently published in Nature Geoscience, researchers from the University of Bergen (UiB) and ETH Zurich have demonstrated that ice sheets have extensively shaped the fjords of Norway for the last 2.8 million years. — However, the massive sediment record deposited offshore Norway during this period tells us a more complex...

2012-09-04 23:16:38

A new model allows researchers at UNESCO-IHE, TU Delft and Deltares to much more accurately predict coastline erosion due to rising sea levels. It would appear that the effects of coastline erosion as a result of rising sea-level rise in the vicinity of inlets, such as river estuaries, have until now been dramatically underestimated. The scientists have published their research in the online edition of Nature Climate Change on Sunday 2 September. Coastline recession The anticipated rise...

Dying Trees Set Stage For Erosion And Water Loss
2012-06-28 04:01:37

New research concludes that a one-two punch of drought and mountain pine beetle attacks are the primary forces that have killed more than 2.5 million acres of pinyon pine and juniper trees in the American Southwest during the past 15 years, setting the stage for further ecological disruption. The widespread dieback of these tree species is a special concern, scientists say, because they are some of the last trees that can hold together a fragile ecosystem, nourish other plant and animal...

Deepwater Horizon Spill Exacerbated Existing Problems In Louisiana Marshes
2012-06-26 04:10:50

The BP Deepwater Horizon oil spill temporarily worsened existing manmade problems in Louisiana's salt marshes such as erosion, but there may be cause for optimism, according to a new study. A study appearing online Monday in the Proceedings of the National Academy of Sciences found the 2010 spill killed off salt marsh plants 15 to 30 feet from the shoreline and this plant die off resulted in a more-than-doubled rate of erosion along the marsh edge and subsequent permanent marsh habitat...

44116_web
2012-06-02 11:09:53

Some of the steepest mountain slopes in the world got that way because of the interplay between terrain uplift associated with plate tectonics and powerful streams cutting into hillsides, leading to erosion in the form of large landslides, new research shows. The work, presented online May 27 in Nature Geoscience, shows that once the angle of a slope exceeds 30 degrees — whether from uplift, a rushing stream carving away the bottom of the slope or a combination of the two —...

2012-05-09 12:05:42

It was all too evident during the Dust Bowl what a disastrous impact wind can have on dry, unprotected topsoil. Now a new study has uncovered a less obvious, but still troubling, effect of wind: Not only can it carry away soil particles, but also the beneficial microbes that help build soil, detoxify contaminants, and recycle nutrients. Using a powerful DNA sequencing technique, called pyrosequencing, a team led by USDA-ARS scientists Terrence Gardner and Veronica...

70 Percent Of Beaches Eroding On Some Hawaiian Islands
2012-05-08 07:42:04

An assessment of coastal change over the past century has found 70 percent of beaches on the islands of Kaua'i, O'ahu, and Maui are undergoing long-term erosion, according to a U.S. Geological Survey (USGS) and University of Hawai'i (UH) report released today. Scientists from the USGS and the School of Ocean and Earth Science and Technology (SOEST) at UH studied more than 150 miles of island coastline (essentially every beach) and found the average rate of coastal change — taking...

Geologist Find Unusual Land Formation On Mars
2012-03-23 06:10:46

Geologists at the University of Washington found that a previously unseen landform on Mars could help provide a window into the geological history of the Red Planet. The "periodic bedrock ridges", or PBRs, look like sand dunes, but the scientists say that they are actually made from wind erosion of bedrock. "These bedforms look for all the world like sand dunes but they are carved into hard rock by wind," David Montgomery, a UW professor of Earth and space sciences, said in a press...

2012-01-25 12:56:15

Taking inspiration from the yellow fattail scorpion, which uses a bionic shield to protect itself against scratches from desert sandstorms, scientists have developed a new way to protect the moving parts of machinery from wear and tear. A report on the research appears in ACS' journal Langmuir. Zhiwu Han, Junqiu Zhang, Wen Li and colleagues explain that "solid particle erosion" is one of the important reasons for material damage or equipment failure. It causes millions of dollars of damage...


Latest Erosion Reference Libraries

Erosion
2013-04-01 12:48:39

Erosion is the process by which rock and soil are taken from the surface of the Earth by exogenetic processes like wind or the flow of water, and then transported and deposited in another location. While erosion is a natural process, human activities have increased by 10 to 40 times the rate at which erosion is happening globally. Excessive erosion results in problems such as desertification, decreases in agricultural productivity because of land degradation, sedimentation of waterways,...

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Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.