@inbook{a90a66473e264e18a85be1c664d4d806,
title = "Hydrogen in molten iron at high pressure: The first measurement",
abstract = "In order to evaluate hydrogen abundance in the Earth{\textquoteright}s core, high-pressure melting experiments of FeHx were carried out. The experiments were designed to simulate the iron-water reaction in the Earth{\textquoteright}s magma ocean so that FeHx was synthesized in hydrous silicate melts. Hydrogen concentration in liquid FeHx was measured for the first time with a new technique. The hydrogen concentration in the liquid FeHx was 20% higher than the coexisting solid FeHx. The hydrogen concentration in the liquid FeHx rapidly increased with increasing temperature. The accreted iron to the proto-Earth should have accumulated and have been in equilibrium with hydrous silicate melt at the bottom of the magma ocean. Hydrogen concentration in the core estimated from the result of our experiments was up to H/Fe = 0.69, which may reconcile most of the density deficit in the present outer core.",
author = "Takuo Okuchi and Eiichi Takahashi",
note = "Funding Information: Acknowledgments. We thank D. J. Stevenson and one anonymous referee for their critical reviews and comments. We thank Y. Fukai, T. Yagi, K. Kawamura and H. Yurimoto for helpful discussions. This work was supported by the foundation for Research Fellowships of Japan Society for the Promotion of Science for Young Scientists. Funding Information: We thank D. J. Stevenson and one anonymous referee for their critical reviews and comments. We thank Y. Fukai, T. Yagi, K. Kawamura and H. Yurimoto for helpful discussions. This work was supported by the foundation for Research Fellowships of Japan Society for the Promotion of Science for Young Scientists. Publisher Copyright: {\textcopyright} 1998 by the American Geophysical Union.",
year = "1997",
doi = "10.1029/GM101p0249",
language = "English",
isbn = "9780875900834",
series = "Geophysical Monograph Series",
publisher = "Blackwell Publishing Ltd",
pages = "249--260",
editor = "Manghnani, {Murli H.} and Takehiko Yagi",
booktitle = "Properties of Earth and Planetary Materials at High Pressure and Temperature, 1998",
}