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Massive 'lake' discovered under Volcano in South America

Scientists have discovered a huge magmatic lake, 15 kilometres below a dormant volcano in South America, a finding that could unlock why and how volcanoes erupt.
●    The body of water - which is dissolved into partially molten rock at a temperature of almost 1,000 degrees Celsius - is the equivalent to what is found in some of the world's giant freshwater lakes, such as Lake Superior.
●    The finding by researchers from University of Bristol in the UK and colleagues has led scientists to consider if similar bodies of water may be 'hiding' under other volcanoes and could help explain why and how volcanoes erupt.
●    In order to characterise the partially molten region the team performed high temperature and pressure experiments at the University of Orleans in France.
●    This measured the electrical conductivity of the molten rock in the 'anomalous' region and concluded that there must be about eight to ten per cent of water dissolved in the silicate melt.
●    The researchers hope that better understanding of how water can trigger volcanic eruptions can improve predictions of when it is going to erupt.


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