Published May 3, 2024 | Version v1
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Experimental Data for understanding melting and phase relations at the Mercury silicate mantle compositions as a function of temperature at 7 GPa

  • 1. ROR icon Center for High Pressure Science & Technology Advanced Research
  • 2. ROR icon University of Liège

Description

High pressure-temperature experiments were performed at 7 GPa and 1700-2100 C using a cubic press to understand melting relations at the core-mantle boundary on Mercury. Mer8 was in the stability field of orthopyroxene whereas Mer15 first crystallized olivine. With cooling, both compositions reached a cotectic surface with olivine + orthopyroxene, followed by garnet and clinopyroxene. A sulfide phase (FeS + MgCaFeS) was present in all experiments.

Notes

The compositions of Mer8 and Mer15 can be found in Table S1 in the paper titled <A diamond-bearing core-mantle boundary on Mercury> (In press now).

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