Geomagnetic field behaviour preceding a Superchron: new evidence for a weak Devonian geomagnetic field

Louise Hawkins, University of Liverpool, Liverpool, United Kingdom, Taslima Anwar, University of Alberta, Edmonton, AB, Canada, Valentina Scherbakova, Borok Geophysical Observatory, IPE RAS, Borok, Russia, Andrew John Biggin, University of Liverpool, Liverpool, L69, United Kingdom, Vadim A Kravchinsky, University of Alberta, Physics, Edmonton, AB, Canada, Andrei Shatsillo, Schmidt Institute of Physics of the Earth RAS, Moscow, Russia, James Holt, University of Liverpool, Institute for Risk and Uncertainty, Liverpool, United Kingdom and Vladimir Pavlov, Institute of Physics of the Earth RAS, Moscow, Russia