Origin of long-wavelength magnetic anomalies associated with subducting oceanic lithosphere

Simon Williams, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, Australia, David Gubbins, University of Leeds, Leeds, LS2, United Kingdom, Dietmar Müller, University of Sydney, Sydney, NSW, Australia and Michael G Tetley, Université Claude Bernard Lyon 1, Laboratoire de Géologie de Lyon, Lyon, France