Latest Types of volcanic eruptions Stories
Study of volcano-ice interaction offers window into geologic past and clues about Earth's long-term climate cyclesGlaciovolcanoes, they're called, these rumbling mountains where the orange-red fire of magma meets the frozen blue of glaciers.Iceland's Eyjafjallajökull volcano, which erupted recently, is but one of these volcanoes. Others, such as Katla, Hekla and Askja in Iceland; Edziza in British Columbia, Canada; and Mount Rainier and Mount Redoubt in the U.S., are also glaciovolcanoes:...
NEW YORK, April 23, 2010 /PRNewswire/ -- Games2win Inc - a top 20 Global online games company announced the release of its online game 'Volcano Flight Control' on its game portal -http://www.gangofgamers.com. The game is inspired by the recent volcanic eruption in Iceland and the challenges the incident created for airlines and passengers. In 'Volcano Flight Control', the player has to pilot an airline across volcanic ash strewn skies and navigate the plane so to avoid damage...
Despite strong tremors in the area, much less ash and smoke were rising from the Iceland volcano that crippled European air travel for much of the past week.Meanwhile, skies started to clear in Europe, which led to a rare sighting of blue skies in countries where such sights are usually obstructed by airplane exhaust fumes, according to Associated Press (AP) writers Joji Sakurai and Karl Ritter."Just as city lights make it necessary for us to go to the desert to appreciate the true...
As airports across Europe reopened Tuesday and the long process of returning thousands of stranded passengers to their homes began, the ongoing fallout of recent volcanic eruptions in Iceland delayed the delivery of polio vaccine to Africa and caused concern that another, more dangerous eruption could soon occur at another nearby volcano.Last Wednesday, the volcano located beneath the Eyjafjallajokull glacier began erupting, spewing ash that covered local farmland, shot as high as 30,000 feet...
The volcanic eruption in Iceland that has crippled European air travel for days is now beginning to produce molten lava, meaning that less ash should be produced and raising hopes that the existing cloud that has forced flights to be grounded could finally start dispersing.On April 19, commercial helicopter pilot Reynir Petursson told AFP reporter Sebastian Smith, "We saw the eruption changing from being explosions of ash"¦ It's the first day we saw lava. It's not flowing, but...
New techniques under development could provide better tracking of volcanic plumesA University at Buffalo volcanologist, an expert in volcanic ash cloud transport, published a paper recently showing how the jet stream "“ the area in the atmosphere that pilots prefer to fly in "“ also seems to be the area most likely to be impacted by plumes from volcanic ash."That's a problem," says Marcus I. Bursik, PhD, one of the foremost experts on volcanic plumes and their effect on aviation...
As ash caused by a volcanic eruption crippled European air travel for a fourth straight day on Sunday, hope that the travel restrictions could soon be lifted came in the form of a few successful test flights.On April 18, a British Airways Boeing 747 jumbo jet successfully flew through the cloud of volcanic ash, travelling from Heathrow Airport in London out over the Atlantic Ocean during a three hour flight. A British Airways spokesman and told the AFP, "The conditions were perfect and...
In the past, volcanic eruptions have had a cooling effect on the Earth's climate, but the recent Icelandic eruption is too small to provide any relief from manmade global warming, scientists said on Friday.The biggest cooling event of the last 30 years was the 1991 eruption of Mount Pinatubo, which cooled the Earth's surface by nearly 1 degree Fahrenheit over the following year. This, in turn, was enough to offset the impact of greenhouse gases from 1991 to 1993.The Mount St. Helens eruption...
Volcanic ash fall could contaminate Iceland's drinking water in certain areas due to the ongoing Eyjafjallajokull eruption. Health officials also warned that the biggest health risk would be to livestock."It is important to prevent the ash from reaching water supplies, both for public and animal health reasons and for safe milk production," Halldor Runolfsson of the Icelandic Food and Veterinary Authority told AFP.Most of Iceland's water supply comes from underground sources, which...
Thousands of planes are grounded across Europe due to the spread of volcanic ash following the recent eruption under Iceland's Eyjafjallajoekull glacier. Volcanic eruptions eject large amounts of ash and trace gases such as sulphur dioxide into the atmosphere, often reaching the altitudes of scheduled flights.When flying through a volcanic ash cloud, ash particles enter the jet engines which can result in engine failure. The ash can also severely damage the material of the aircraft, clog its...
Latest Types of volcanic eruptions Reference Libraries
Scoria is a term used by geologists to describe an igneous rock containing many gas bubbles, or vesicules. Scoria forms when magma rich in dissolved gases is vented. As the magma encounters lower pressures, the gasses are able to escape and form bubbles. These bubbles are trapped when the magma cools and solidifies. Volcanic cones of scoria can be left behind after eruptions, usually forming mountains with a crater at the summit. An example is Mount Wellington, Auckland in New Zealand....
Volcanic ash is the term for very fine rock and mineral particles less than 2 mm in diameter that are ejected from a volcanic vent. Ash is created when solid rock shatters and magma separates into minute particles during explosive volcanic activity. The usually violent nature of an eruption involving steam (phreatic eruption) results in the magma and perhaps solid rock surrounding the vent, being torn into particles of silt to sand size. The plume that is often seen above an erupting volcano...
