Stability of magnesite and its high-pressure form in the lowermost mantle

  title={Stability of magnesite and its high-pressure form in the lowermost mantle},
  author={M. Isshiki and T. Irifune and K. Hirose and S. Ono and Y. Ohishi and T. Watanuki and E. Nishibori and M. Takata and M. Sakata},
Carbonates are important constituents of marine sediments and play a fundamental role in the recycling of carbon into the Earth's deep interior via subduction of oceanic crust and sediments. Study of the stability of carbonates under high pressure and temperature is thus important for modelling the carbon budget in the entire Earth system. Such studies, however, have rarely been performed under appropriate lower-mantle conditions and no experimental data exist at pressures greater than 80 GPa… Expand

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