Fig. 3From: Hydrogen-rich hydrothermal environments in the Hadean ocean inferred from serpentinization of komatiites at 300 °C and 500 barMagnetic hysteresis loops of (a) the starting material and (b) the alteration product of the olivine experiment, (c) the starting material and (d) the alteration product of the Al2O3-5 % komatiite experiment, and (e) the starting material and (f) the alteration product of the Al2O3-10 % komatiite experiment. The hysteresis loops were corrected by subtracting diamagnetic/paramagnetic slopes. Note that the loops were measured at 10 K for both komatiite samples and at room temperature for the olivine samplesBack to article page