Elevated silicon content facilitates carbon precipitation within Mercury’s core - Electron Microprobe Analysis Data

This Excel sheet contains EPMA compositional analyses of the quenched Fe-Si-C metallic liquid from our multi-anvil experiments, reported by run/sample and analysis point. Each row corresponds to an individual EPMA spot (or an averaged set, if noted) and includes the measured element concentrations (Fe, Si, C), totals, and any identifiers needed to link analyses to a specific run condition. The data show that dissolved carbon in the metal decreases systematically with increasing Si, consistent with carbon-saturated liquids coexisting with graphite/diamond in many runs.