Water in Earth's Lower Mantle

@article{Murakami2002WaterIE,
  title={Water in Earth's Lower Mantle},
  author={M. Murakami and K. Hirose and H. Yurimoto and S. Nakashima and N. Takafuji},
  journal={Science},
  year={2002},
  volume={295},
  pages={1885 - 1887}
}
Secondary ion mass spectrometry measurements show that Earth's representative lower mantle minerals synthesized in a natural peridotitic composition can dissolve considerable amounts of hydrogen. Both MgSiO3-rich perovskite and magnesiowüstite contain about 0.2 weight percent (wt%) H2O, and CaSiO3-rich perovskite contains about 0.4 wt% H2O. The OH absorption bands in Mg-perovskite and magnesiowüstite were also confirmed with the use of infrared microspectroscopic measurements. Earth's lower… Expand
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