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The δ53Cr isotope composition of komatiite flows and implications for the composition of the bulk silicate Earth

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Academic year: 2021

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Figure

Fig. 3. The δ 53 Cr composition of whole-rock samples and chromite separates from the Victoria's Lava Lake
Fig. 6. δ 53 Cr plotted against loss on ignition(LOI) used as an indicator of serpentinisation, for (a) Victoria's Lava Lake and (b) Tony's FlowNo correlations are seen.
Fig. 8. δ 53 Cr variations against Cr concentrations. The Victoria's Lava Lake show no variations while Tony's Flow and Gorgona komatiites have heavier δ 53 Cr at lower Cr  con-centrations
Fig. 9. The weighted average δ 53 Cr composition of the mantle through time based on fi ve komatiite fl ows

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