All Articles Tagged As: erosion

Glacial erosion changes internal mountain structure, responses to plate tectonics (11/19/2008)

Intense glacial erosion has not only carved the surface of the highest coastal mountain range on earth, the spectacular St. Elias range in Alaska, but has elicited a structural response from deep within the mountain. This interpretation of structural response is based on real-world data now being reported, which supports decades of model simulations of mountain formation and evolution regarding the impact of climate on the distribution of deformation associated with plate tectonics. ...> Full Article

Virginia Tech engineers identify conditions that initiate erosion (11/2/2008)

Researchers have demonstrated that sustained spikes in turbulence are responsible for dislodging particles, whether on land or in the water. ...> Full Article

Preserved by ice: Glacial dams helped prevent erosion of Tibetan plateau (10/9/2008)

New research suggests that a Tibetan plateau edge might have been preserved for thousands of years by ice during glacial advances and by glacial debris deposited at the mouth of many Tsangpo tributaries during warmer times when glaciers retreated. ...> Full Article

Scientists Test System to Forecast Flash Floods along Colorado's Front Range (7/27/2008)

People near vulnerable creeks, streams, rivers may soon have advance notice ...> Full Article

Grand Canyon May Be As Old As Dinosaurs, According To New Geologic Dating Study (4/11/2008)

New geological evidence indicates the Grand Canyon may be so old that dinosaurs once lumbered along its rim ...> Full Article

Better Dams, Levees, Embankments: Soil Type And Compaction Factors Can Make Soil 1,000 Times More Resistant To Erosion (4/10/2008)

Researcher develops tool to evaluate the condition of streams and dam embankments ...> Full Article

Continents loss to oceans boosts staying power (4/2/2008)

Study measures effects of chemical weathering on the composition of continents ...> Full Article

Large Source of Nitrate, a Nutrient and Potential Water Contaminant, Found in Near-Surface Desert Soils (3/3/2008)

Disruption of desert soil surface could result in wind erosion of nitrate-rich soil ...> Full Article

Heavy rainfall on the increase (2/21/2008)

Scientists at the University of East Anglia (UEA) have found that winter precipitation - such as rain and snow - became more intense in the UK during the last 100 years. ...> Full Article

As A River Runs Through It, A Death Valley Stream Offers Insights Into Flooding And Climate Change (2/11/2008)

Death Valley may be known by its three superlatives: hottest, driest, and lowest - as in temperature, rainfall, and elevation in the United States. But it was the flow of water through the National Park that attracted Boston College Asst. Prof. of Geology and Geophysics Noah P. Snyder to the desert of eastern California. ...> Full Article

Electric sand findings could lead to better climate models (1/8/2008)

Wind isn't acting alone in the geological process behind erosion, sand dunes and airborne dust particles called aerosols. The other culprit is electricity. By taking both factors into account, researchers at the University of Michigan have developed a new model that matches real-world measurements of "saltation" better than the decades-old classical theory. ...> Full Article

Strange Alaska rivers flow through mountain range (11/22/2007)

Alaska's landscape has an unusual feature that allows us to enjoy cheap bananas in Fairbanks and other things that make life better in the subarctic. The Nenana River, born on the south side of the Alaska Range, makes a U-turn and flows north through the mountains. With it comes a wide, low corridor that has favored construction of both the Alaska Railroad and the Parks Highway. ...> Full Article