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Fig. 1 | Progress in Earth and Planetary Science

Fig. 1

From: The chemical case for Mercury mantle stripping

Fig. 1

a Internal pressure within Vesta, using geodetic data from Russell et al. (2012) and methods from Helffrich (2017). Core-mantle boundary (CMB) pressure is evident in knickpoint in P(R) curve. b Sulfur model applied to Vesta, using average estimates of bulk Vesta composition. Contours show wt% S in Vesta silicate assuming metal-silicate equilibrium at indicated pressure (P) and sulfur content of silicate \(X^{\text {sil}}_{\mathrm {S}}\). Dashed vertical line is Vestan CMB pressure from a. Sloped horizontal line is \(X^{\text {met}}_{\text {Si}}\) calculated from metal-silicate equilibrium at the given pressure. For equilibration pressures at or below the Vestan CMB (lower left), silicate sulfur content is \(0.47~{\leq ~} X^{\text {sil}}_{\mathrm {S}}~ {\leq ~}0.55\) wt%. For measured eucrites, \(0.03~{\leq }~ X^{\text {sil}}_{\mathrm {S}}~ {\leq }~1.02\) wt% (Kitts and Lodders 1998)

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