Chekcell and Rietica: results of the volume of Oxygen and the earth’s other core

• Energy Dispersive XRD: vol O2 ~10 cc/mol

• Established vol O2 from shockwave experiments: ~15 cc/mol (50% difference)

  • 15 cc/mol means there cannot be Oxygen
  • 10 cc/mol means there can be Oxygen and has implications for possible transport mechanisms between the lower mantle and outer core.

• Shockwave / Molecular Dynamics / Impulsively Stimulated Scattering Measurements (~15 cc/mol) vs Energy Dispersive Data (~10 cc/mol) beyond the scope of this talk

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