Named in memory of Stanley Keith Runcorn (1922–1995), British geophysicist. Runcorn’s research centered on the magnetic properties of rocks. He used their paleomagnetic signatures to make an important contribution to the emerging theory of plate tectonics, and he also studied the magnetism of the moon, convection in planetary interiors, and geomagnetic polarity reversals. For many years head of the department of physics at the University of Newcastle-upon-Tyne, Runcorn was celebrated for his organization of his NATO-sponsored international scientific discussion meetings. (M 28089) _ _.