Scientists have found evidence of a long-hidden link between an ancient buried ash layer in Scandinavia and a concealed supervolcano in eastern England.
The origin of the Kinnekulle tephra, a huge volcanic ash layer spread across Norway, Sweden, the Baltic region, Belarus and Poland, has long been a mystery but new evidence may have uncovered the source of the ash for the first time.
Scientists at BGS and the University of Oslo have studied tiny crystals, smaller than the diameter of a human hair, extracted from boreholes 65 km apart in Lincolnshire and Norfolk. The analysis uncovered evidence of a 454 million year old supervolcano, now concealed beneath The Wash on the east coast of England. Thanks to cutting edge-analysis, we have been able to provide evidence that reshapes our understanding of England’s deep geological past.
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