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Supervolcano eruption mystery solved - Skywise - 01-07-2014
Full story at link.
http://www.bbc.co.uk/news/science-environment-25598050
Supervolcano eruption mystery solved
Scientists have made a breakthrough in their efforts to understand what causes so-called supervolcanoes to erupt.
Supervolcanoes are capable of eruptions thousands of times larger than normal outpourings.
It was thought that an external trigger, such as an earthquake, was needed to bring about a giant blast.
But tests at the European Synchrotron Radiation Facility in Grenoble show the sheer volume of liquid magma is enough to cause a catastrophic super-eruption.
Brian