Fig. 2From: Orbital-scale variation in the magnetic content as a result of sea level changes in Papua New Guinea over the past 400 ka a The S-ratio data of the core MD05-2928 (in depth). b The IRM acquisition curves of the studied samples. Lines and numbers with different colors represent the sampling depths (unit, m), respectively. The black dashed line indicates the applied field at 300 mT. c The diagram of χ ARM versus χ used to detect the grain size of the magnetic mineral dominated by magnetite. Red dashed lines and values show the grain size model (King et al. 1982)Back to article page