Sentences with phrase «during volcanic»

Siberian / eurasian warming during volcanic excursions (due to the positive phase of the AO) if you get the sign wrong eg Hanson or Schmidt in the various configurations show that there is indeed persistence of the ability to reproduce the wrong sign.

Especially during volcanic activity.

For example, there are oceanic cycles like the El Niño Southern Oscillation (ENSO, comprised of El Niño and La Niña events), an 11 - year solar cycle, and particulates released during volcanic eruptions which cause short - term cooling by blocking sunlight.

large el ninos tend to arise at solar minimum, during volcanic singularities (enhanced persistence) and bi polar o3 holes.

*** * «Carbon Dioxide Speaking of carbon dioxide, this is another gas that is commonly expelled during the volcanic eruptions.

Further, during volcanic eruptions the ocean cools but for another reason: because volcanic aerosols shade the sun and thus the oceans are heated less than normal.

The townsfolk talk of a heroine who acted as a brave savior during a volcanic eruption.

people should stay away from rivers because mudflows could move rapidly and were a frequent killer during volcanic eruptions.

The island was formed during a volcanic upheaval about two - and - a-half million years ago and is composed of basaltic rock, labacorite and andecite lava flows.

Tenerife is an island formed during a volcanic eruption which created a dry and rocky landscape with large mountains.

The business travel specialist also experienced a rush of corporations looking to get their staff back to work during the volcanic ash cloud crisis, which forced the closure of European airspace.

Sutopo said people should stay away from rivers because mudflows could move rapidly and were a frequent killer during volcanic eruptions.

We got stuck during Volcanic activity and all of the staff were amazing at helping us get out.

A good example of this is obsidian — a beautiful, naturally occurring compound that is formed during volcanic activity.

Other possibilities are the decomposition of organic matter in terrestrial settings, or the release of methane and carbon dioxide from deeply buried rocks during volcanic events.

Also a gas naturally emitted during volcanic eruptions.

This would open up large areas of airspace that would otherwise be closed during a volcanic eruption, which would benefit passengers by minimising disruption.

The transition zone controls the movement of magma that flows out during a volcanic eruption.

Armed with a clear timeline, the archeologist Marean was able to show that those human ancestors living at Pinnacle Point and Vleesbaai — located about five miles apart — showed remarkable improvement in their life style during the volcanic winter caused by the Toba eruption.

Smith quickly identified the pieces as cryptotephra, very old microscopic glass shards that were ejected during a volcanic eruption.

During volcanic eruptions, SO2 converts to sulfuric acid aerosols.

Like CO2, helium - 3 is released during volcanic eruptions, and it is rather insoluble in saline water.

Like the particles emitted during volcanic eruptions, sulfate aerosols cool the Earth by blocking a portion of the sun's rays.

These appear as particle - rich «fingers» descending from the base of volcanic clouds and have commonly been observed during volcanic explosive eruptions.

They form through the collapse of subterranean magma reservoirs during volcanic eruptions.

Oppenheimer and his colleagues get called on during volcanic crises to help with ground - based remote sensing of ash clouds.

Because of the high temperature in the inner parts of Earth's mantle, the CO2 is released back into the atmosphere during volcanic eruptions.

Air bubbles collect and explode at the surface of many viscous liquids, as observed with polymer foams, in glass furnaces, and during volcanic eruptions.

Not exact matches

The legendary Ölfus Spring was forged during a massive volcanic eruption over 5,000 years ago.

Mercury is an element found in the Earth's crust that is typically only released in unhealthy quantities during events like a volcanic eruption.

The data showed that, in comparison to today, the Atlantic Ocean surface circulation was much weaker during the Little Ice Age, a cool period thought to be triggered by volcanic activity that lasted from 1450 - 1850.

Given that the salinity crisis was capable of generating these changes in pressure, the geologists — working on the hypothesis that the Mediterranean dried out — studied the changes in volcanic activity during this period.

After observing a sharp rise in volcanic activity during this period, and testing various scenarios, the geologists concluded that the increase in magmatic activity could only be explained by the almost total drying out of the Mediterranean.

The white line represents the present - day Mediterranean coastline, blue regions show the submarine area in case of a 2 km Mediterranean sea level lowering as it was proposed during the Messinian salinity crisis and red circles show the location of volcanic provinces whose activity was enhanced during the Messinian (the size of the circle is proportional the activity augmentation).

It was based on real volcanic eruptions during the past 200,000 years in Central America, which had been investigated in the framework of the Collaborative Research Project 574.

VOLCANIC TERRAIN During a 2009 flyby, Messenger spotted Rachmaninoff, a 170 - mile - wide, double - ringed impact basin.

By combining this data with Ridgwell's global climate model, the team deduced the amount of carbon added to the ocean and atmosphere and concluded that volcanic activity during the opening of the North Atlantic was the dominant force behind the PETM.

Layered volcanic rocks in Eastern Greenland that are up to 4 miles thick were formed during ancient volcanic eruptions that caused a global warming event called the Palaeocene - Eocene Thermal Maximum (PETM).

The bounty of lunar samples brought to Earth by Apollo astronauts included volcanic glass hauled in during the Apollo 15 and 17 missions.

During her doctoral work, Mather investigated the chemical composition of volcanic «plumes,» a mixture of aerosols and gases volcanoes emit that resembles smoke.

The material, they believe, was recycled as older volcanic rocks forming the roofs of magma chambers collapsed and remelted during eruptions, only to be reejected in the next volcanic outburst.

Seismic waves can be generated naturally, during earthquakes and volcanic eruptions, for example, or by artificial means such as explosions.

On at least three occasions during the past 7,000 years, the penguin population was similar in magnitude to today, but was almost completely wiped out locally after each of three large volcanic eruptions.

One of the largest colonies of gentoo penguins in Antarctica was decimated by volcanic eruptions several times during the last 7,000 years according to a new study.

Any sediments left during a large volcanic event would therefore be expected to have unusually high mercury content.

The approximately 4 - ton, 30 - foot - long predator lived 67 million years ago during the end of the Cretaceous Period, an epoch marked by intense volcanic activity and the extinction of the dinosaurs.

Volcanic cones are of different types, depending upon the nature and size of the fragments ejected during the eruption.

From the fossil and sediment records, Tarduno and his team were able to conjecture that the bird's environment in the Canadian Arctic during the Turonian age would have been characterized by volcanic activity, a calm freshwater bay, temperatures comparable to those in northern Florida today, and creatures such as turtles, large freshwater fish, and champsosaurs — now - extinct, crocodile - like reptiles.

But in a new study researchers have shown conclusively that a new form of low - energy lightning is also active during eruptions, arcing between particles as they exit the volcanic vent at around 100 metres per second.

Lawrence Percival, Lead author and Geochemistry Graduate student at Oxford University, said: «These results strongly support repeated episodes of volcanic activity at the end of the Triassic, with the onset of volcanism during the end - Triassic extinction.