Music of Fireplace and Ice: See what occurs when lava meets ice. good information

Lava flows over ice in an experiment whose outcomes have been revealed final week in Geology. Picture credit score: Edwards et al through GSA

What occurs if you pour tons of of kilograms of molten lava onto ice?

It might sound like a proper query, however the interplay between lava and ice can have an actual influence on communities dwelling close to ice-capped volcanoes. (They exist!) When lava meets ice, the ensuing mess could cause flooding, destroy worthwhile sources and even trigger an explosion.

Greater than 200 volcanoes are at the moment coated with snow and ice, however researchers have revealed a paper Geology Eruptions of ice-capped volcanoes are tough to see due to the standard remoteness of the websites, explains Friday’s occasion. He scraped collectively information from a number of the observations he had, and likewise carried out real-time experiments, melting greater than 300 kilograms of lava and pouring it onto the ice at Syracuse College’s Lava Venture:

The analysis discovered that lava doesn’t at all times soften by means of ice, and flows beneath the floor. When lava was poured instantly onto the densely packed ice, the lava was capable of move at a charge of ten centimeters per second over the simulated glacier, lubricated by a layer of steam.

From press launch:

“The preliminary outcomes of this research are each anticipated (ice melts!) and considerably sudden (lava can journey over ice; molten water can bubble by means of lava). Benjamin Edwards and his colleagues discovered the soften. The flexibility of layers of volcanic ash (sand in experiments) to decelerate the method of eruption has additionally been examined. The outcomes present that if the snow or ice is roofed with volcanic ash at first of the eruption, it’s going to decelerate the speed of melting. will decelerate considerably if lava subsequently strikes over ash-covered ice. These experiments present good settlement with observations from volcanic eruptions in Iceland and Sicily, together with the flexibility of lava to search out vulnerabilities within the ice and beneath the ice. A tunnel is concerned. As soon as lava has discovered its method to the bottom of the ice, it could proceed to move beneath layers of ice, profiting from already current fractures.”

Nationwide Geographic has a terrific slideshow of photographs of the interplay of lava and ice, taken by the writer Geology research, Ben Edwards of Dickinson School.

Extra from

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Methods to Examine Volcanoes

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