Abundance and Partitioning of OH in a High-pressure Magmatic System : Megacrysts from the Monastery Kimberlite , South Africa

@inproceedings{Bell2004AbundanceAP,
  title={Abundance and Partitioning of OH in a High-pressure Magmatic System : Megacrysts from the Monastery Kimberlite , South Africa},
  author={David R. Bell and George R. Rossman and R. Moore},
  year={2004}
}
Concentrations of OH, and major and trace elements were determined in a suite of mantle-derived megacrysts that represent the crystallization products of a kimberlite-like magma at 5 GPa and 1400---1100 C. OH concentrations, determined by singlecrystal Fourier transform infrared spectroscopy, display the following ranges (ppmw H2O): olivine 54---262, orthopyroxene 215---263, garnet 15---74, clinopyroxene 195---620, and zircon 28---34. High OH concentrations in olivine imply mantle conditions of… CONTINUE READING

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