Figure 2
From: Magnetic stratigraphic dating of marine hydrogenetic ferromanganese crusts

(a–d) Normalized isothermal remanent magnetization (IRM) acquisition curves (black curves) and back field demagnetization of the IRM (pink curves). (e–h) Room temperature hysteresis loops. (i–l) Temperature dependence of magnetic susceptibility (κ–T curves). The red and blue lines indicate heating and cooling curves, respectively.