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Latest Geomorphology Stories

Mercury Has Unusual Tectonic Landforms
2012-11-16 09:30:37

[ Watch the Video: What Is Mercury ] April Flowers for redOrbit.com - Your Universe Online MESSENGER, in orbit around Mercury since March of last year, has discovered assemblages of tectonic landforms unlike any previously found on Mercury or elsewhere in the Solar System. Smithsonian scientist Thomas Watters published the findings in the December issue of Geology. Mercury's surface is covered with deformational landforms, formed by faulting in response to horizontal contraction or...

2012-11-08 00:53:19

Rapid advances in the new and developing field of restoration sedimentology will be needed to protect the world's river deltas from an array of threats, Indiana University Bloomington geologist Douglas A. Edmonds writes in the journal Nature Geoscience. The commentary, published this week in the November issue, addresses the fact that land is disappearing from river deltas at alarming rates. And deltas are extraordinarily important: They are ecologically rich and productive, and they are...

Anthropocene Continues To Instigate Scientific Debate
2012-11-01 13:07:36

Geological Society of America GSA Annual Meeting Technical Session: "Geomorphology of the Anthropocene" How have humans influenced Earth? Can geoscientists measure when human impacts began overtaking those of Earth's other inhabitants and that of the natural Earth system? Responding to increasing scientific recognition that humans have become the foremost agent of change at Earth's surface, organizers of this GSA technical session have brought together speakers and poster presentations...

Defrosting Permafrost Could Add To Climate Woes
2012-10-30 09:14:35

Brett Smith for redOrbit.com - Your Universe Online As global warming extends its balmy fingers further into the Arctic regions, defrosting permafrost could release up to 44 billion tons of nitrogen and 850 tons of carbon into the atmosphere, according to a new study from the U.S. Geological Survey (USGS). The doubling of atmospheric carbon that would result from such an unprecedented thaw figures to impact ecosystems, the atmosphere, the Earth´s lakes and rivers, the researchers...

King Of Canyons - Mars Valles Marineris
2012-10-23 05:13:19

April Flowers for redOrbit.com - Your Universe Online One of the most awe-inspiring sights on the planet Earth is the Grand Canyon. The Colorado River has cut through 2 billion years of geologic history, carving out a canyon that is 277 miles long and up to 18 miles wide. However, next to Valles Marineris on Mars, the Grand Canyon is a mere scratch in the ground. Valles Marineris stretches over 4000 kilometers in length and is 200 kilometers wide, with a maximum depth of 10 kilometers....

shutterstock_111776000
2012-09-18 17:40:22

Lee Rannals for redOrbit.com — Your Universe Online We have even hardly begun to scratch the surface of Mars, yet scientists are already trying to find ways to be eco-friendly on the Red Planet. Scientists are looking to regolith, or alien dirt, to determine whether it can be used to help build shielding for ground stations. Chiara La Tessa is manager of experiments in biophysics at GSI. She said the need for this research is to help shave off some of the weight associated with...

Canada's Vast Mackenzie River Basin Has Major World Interests At Stake
2012-09-04 07:41:11

Watershed covers roughly 20 percent of Canada, including oil sands; The Mackenzie may discharge more water into the Arctic than the St. Lawrence into the Atlantic The governance of Canada's massive Mackenzie River Basin holds enormous national but also global importance due to the watershed's impact on the Arctic Ocean, international migratory birds and climate stability, say experts convening a special forum on the topic. "Relevant parties in western Canada have recognized the need for...

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 —...


Latest Geomorphology Reference Libraries

Desert greening
2013-04-25 16:10:03

Desert greening is made up of any number of methods used to revitalize deserts. So far, only arid and semi-arid desert are meant when using this expression. The icy deserts and other types are considered to be unsuitable. The different methods include landscaping methods to reduce evaporation, erosion, consolidation of topsoil, temperature, sandstorms and more, permaculture in general, planting trees, regeneration of salty, polluted, or degenerated soils, floodwater retention and...

Theodore Roosevelt National Park
2013-04-18 01:20:13

Theodore Roosevelt National Park is located in western North Dakota in the United States. The park contains 70,446 acres of land that is separated into three distinct badland areas known as the Elkhorn Ranch Unit, the South Unit, and the North Unit. Roosevelt  first visited the area in 1883, while hunting for bison, and is said to have “fallen in love” with the badlands. After investing a large sum of money into the Maltese Cross Ranch, Roosevelt had his own cabin built, which he later...

Badlands National Park
2013-03-05 09:07:20

Badlands national Park is located in the southwest region of South Dakota. It holds 242,756 acres of land, with 64,144 acres comprising a protected wilderness area. The park was designated as a national monument in 1929 and established in 1939, but attained national park status in 1978. The Stronghold Unit area of the park is managed by the National Park Service and the Oglala Lakota tribe and holds many sights including those used for Ghost Dances in the 1890’s, a bomb and gunnery range...

22_88c53d3e3f6ea92cc8e0c22906f90b30
2009-07-06 18:07:31

A drainage divide, water divide, divide, or watershed is the line that separates neighboring drainage basins. In flat country the divide may be invisible (just a notional line on the ground either side of which water starts its journey to different waterways). While, in hilly country, the divide lies along peaks and ridges. Drainage divides are important geographical, and sometimes political boundaries. Roads and railways often follow divides to minimize slopes and marshes and rivers....

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Word of the Day
toccata
  • In music, a work for a keyboard-instrument, like the pianoforte or organ, originally intended to utilize and display varieties of touch: but the term has been extended so as to include many irregular works, similar to the prelude, the fantasia, and the improvisation.
This word is Italian in origin, coming from the feminine past participle of 'toccare,' to touch.
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