Sentences with phrase «volcanic material»

Each eruption has a distinct chemical signature that, along with conventional methods of carbon dating, can be used to associate each layer of volcanic material with a particular eruption.

Multiple episodes of volcanic material bubbling up from below may be needed to explain the features.

«That's an awful lot of volcanic material in one place for such a little planet,» Zuber said.

New Zealand scientists mapped the Havre volcano, a caldera nearly three miles (4.5 kilometers) across on the seafloor northeast of the North Island of New Zealand, using shipboard sonar instruments in 2002 and again immediately after the eruption in 2012, revealing the presence of new volcanic material on the seafloor.

Originally these saltworks were a natural lagoon that over the years were isolated from the sea by volcanic materials disgorged by the eruptions of the volcanos of the Timanfaya Park.

It emitted the enormous amount of 2,800 cubic kilometers of volcanic material with a dramatic global impact on climate and environment.

Scientists are now watching to see whether the volcano repeats the violent eruptions of 1963, when superheated gases and volcanic material raced down the mountain in a series of pyroclastic flows, killing more than 1000 people.

The raw volcanic material of central Idaho lies over the slopes in haphazard heaps.

Dr Simon Blockley and Dr Alison MacLeod, from the Department of Geography at Royal Holloway, analysed volcanic material that preserved the archaeological site in the village of Nor Geghi, in the Kotayk Province of Armenia.

Researchers from the Carnegie Institution of Washington and the University of Oslo in Norway reached that conclusion after comparing the four - pound (two - kilogram) extraterrestrial rock, ALH84001, with samples of earthly volcanic material — and discovering a matching pattern of minerals consistent with a chemical process that yields carbon compounds after rapid heating and cooling.

For comparison: The Bárdabunga eruption blew out two cubic kilometers of volcanic material over the course of several months, nearly ten times more than the Eyjafjallajökull.

Brought to Earth's surface in eruptions of deep volcanic material, these rocks hold clues as to what is going on deep beneath Earth's surface.

This process leads to the eruption of large volcanic material (flood basalts) at the Earth's surface.

Lead author of the study Dr Tom Gernon, Lecturer in Earth Science at the University of Southampton, said: «When volcanic material is deposited in the oceans it undergoes very rapid and profound chemical alteration that impacts the biogeochemistry of the oceans.

Bali International Airport will likely be closed in the case of an eruption, but it'll depend on whether volcanic material is considered to be a hazard to flights.

From a sea kayak the island looks like a layer cake of multi-colored volcanic material that depicts its interesting geological history.

Heavy rainfall on the fragmental volcanic materials triggered flows of mud and boulders to additional flanks of the mountain.

The beach contains a large amount of olivine crystals, the same that originate from volcanic materials.

Geologically the area is very complex, being a combination of marine sedimentary rocks of the Cretaceous - Tertiary period and intrusive volcanic material, including lavas and granites.

A supervolcano is essentially a giant volcano capable of spewing forth over 1,000 km ³ (240 miles ³) of volcanic materials into the surrounding environment, producing a vast caldera in the process.

At Virgin, we take the business of fun seriously — our designers, social media and public relations teams worked hard to pull together the Volcanic materials in a short time.

But researchers can not yet explain some of the features etched in that volcanic material: a spoke - like pattern of troughs and ridges emanating from the centre of the basin.

This diversity of volcanic material was unexpected, the researchers write January 10 in Science Advances.

The scientists found that most of the volcanic material injected into the stratosphere settles out at a height of between 18 and 28 kilometres, with the greatest concentrations between 24 and 25 kilometres.

An exceptional sulfate spike in the Greenland Ice Sheet Project Two (GISP2) ice core record, of 6 y duration, has been correlated to the YTT (16) despite an absence of volcanic material.

Recent inspection of the sulfate records from the European project for ice coring in Antarctica's dronning maud land (EDML) ice core reveals sulfate peaks that have been correlated to presumed YTT sulfate peaks in the North Greenland ice core project (NGRIP) and GISP2 ice cores; however, once again no volcanic material has been identified (18).

But an ideal landing site, Moriarty says, might be a spot that has both mantle and volcanic material, because those volcanics are interesting in their own right.

At the bulleye's center is a region of what appears to be deposits of volcanic material, a sign that the center of the basin may have been covered by a volcanic flow sometime soon after the SPA impact.

Another strategy could be to look for a spot where the volcanic material has been pierced by a subsequent impact.

Lava rock may quickly lower pH and some volcanic material is sharp enough to cut fish that rub against it.

Disembark on a red - colored beach due to the unusually high content of iron in the volcanic material.

This played an important role as the injection of volcanic material was so large in the Toba eruption that some chemical processes saturated, leading to a longer presence of sulfur - containing particles in the stratosphere.

These hazards have the potential to cause coastal erosion, landslides, mudslides, epidemics, and the movement and spread of toxic substances and volcanic material.