Archive for the ‘volcanoes’ Category

Badlands No.2 (B&W)

June 7, 2012

Badlands

May 20, 2012

Taken here.

Supervolcanoes

May 29, 2008

Last week it was supernovae, this week, supervolcanoes. Isn’t that super!?

But seriously, three researchers (Dr. Kennedy, Dr. Jellinek, and Dr. Stix) at a couple of Canadian universities (the University of British Columbia (UBC) and McGill University) have conducted experiments to simulate the effects of the devastating geological phenomenon of supervolcanoes. A supervolcano is created when, during an eruption, the magma chamber collapses, leading to catastrophic effects.

The press release, discussing the researcher’s simulation of this phenomena with a corn syrup filled plexiglass model, notes that these supervolcano eruptions are “capable of causing long lasting change to weather, threatening the extinction of species, and covering huge areas with lava and ash.”

Dr. John Stix, from McGill, suggests that “a really big one could create the equivalent of a global nuclear winter.” This kind of eruption scenario would also feature nasty side effects like crop failure and ash falling from the sky.

Most recall the famed Krakatoa, a significantly devastating but still conventional volcano that erupted in the late 19th century. We imagine that these eruptions, like St. Helens, will occur from time to time, and that a supervolcano would likely be an infrequent event, occurring on geological time scales. But most have never heard of Mount Tambora, a supervolcano which killed over a 100,000 people in Indonesia in 1815, less than two hundred years ago. It’s effect was so dramatic — including plumes of ash that clouded the sky for months — that 1816 was known as the “year without a summer”.

Your can find a McGill press release discussing the publication of the three scientists’ paper in Nature Geoscience here.

There’s also a Canadian Press story here. Damn, scooped…

Cool research project. It’s just too bad that the McGill University administration’s labour policies also blow chunks…


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