What lies beneath: Volcanic secrets revealed

L ava samples have revealed a new truth about the geological make-up of the Earth’s crust and could have implications for volcanic eruption early warning systems, a University of Queensland-led study has found. UQ volcanologist Dr Teresa Ubide said it was previously understood that cooled lava from so-called ‘hot spot’ volcanoes was ‘pristine’ magma from the melting mantle, tens of kilometres under the Earth’s surface. “This isn’t quite the case – we’ve been misled, geologically deceived,” Dr Ubide said. “For decades, we have considered hot spot volcanoes to be messengers…

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