Fig. 2 | Nature Communications

Fig. 2

From: Molybdenum systematics of subducted crust record reactive fluid flow from underlying slab serpentine dehydration

Fig. 2

Observed and modelled variations in Mo isotope compositions as a function of Mo/Ce. Grey lines are model δ98/95MoNIST 3134 in residual oceanic crust following fractional loss of Mo-carrying fluids using different fractionation factors (α) between fluid and eclogite at 2.6 GPa, 600 °C and an oxygen fugacity of FMQ + 4 (see Methods). Tick marks denote 10% increments of fluid loss by mass. We also plot reference values for: depleted mid-ocean ridge basalts (MORB) (ref. 21), altered oceanic crust (AOC) using the Super Composite composition from ODP Site 80117 and fluid-rich arc lavas16,17,18,19,61, selected with Ba/Th > 400 to minimise complexity of variable sediment contributions. The representative sample uncertainty is from replicate analyses of W-2a

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