Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Earth science

Silicon-enhanced core

What elements, besides iron, make up Earth's core? Discrepancies in the isotopic ratios found in rocks from Earth's mantle and in undisturbed meteoritic material indicate strongly that one answer is silicon.

This is a preview of subscription content, access via your institution

Access options

Buy article

Get time limited or full article access on ReadCube.

$32.00

All prices are NET prices.

Figure 1: Divided Earth.

References

  1. Georg, R. B., Halliday, A. N., Schauble, E. A. & Reynolds, B. C. Nature 447, 1102–1106 (2007).

    ADS  CAS  Article  Google Scholar 

  2. Bigeleisen, J. & Mayer, M. G. J. Chem. Phys. 15, 261–267 (1947).

    ADS  CAS  Article  Google Scholar 

  3. Wade, J. & Wood, B. J. Earth Planet. Sci. Lett. 236, 78–95 (2005).

    ADS  CAS  Article  Google Scholar 

  4. Takafuji, N., Hirose, K., Mitome, M. & Bando, Y. Geophys. Res. Lett. 32, doi:10.1029/2005GL022773 (2005).

  5. Hart, S. R. & Zindler, A. Chem. Geol. 57, 247–267 (1986).

    ADS  CAS  Article  Google Scholar 

  6. Poitrasson, F., Levasseur, S. & Teutsch, N. Earth Planet. Sci. Lett. 234, 151–164 (2005).

    ADS  CAS  Article  Google Scholar 

  7. Polyakov, V. B. & Mineev, S. D. Geochim. Cosmochim. Acta 64, 849–865 (2000).

    ADS  CAS  Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Elliott, T. Silicon-enhanced core. Nature 447, 1060–1061 (2007). https://doi.org/10.1038/4471060a

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/4471060a

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing