1. Laboratory
of Environmental and Urban Ecology, Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
2. Centre for Environmental Magnetism & Paleomagnetism, Lancaster Environment Centre, University of Lancaster, Lancaster LA1 4YW, United Kingdom
3. Natural
Magnetism Group, Department of Earth Science and Engineering, Imperial College London, London SW7 2AZ, United Kingdom