There is potential evidence for a stratified layer at the top of the Earth's core, but its origin is not well understood. Laboratory experiments suggest that the stratified layer could be a sunken remnant of the giant impact that formed the Moon.
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1038%2Fngeo2815/MediaObjects/41561_2016_Article_BFngeo2815_Fig1_HTML.jpg)
References
Buffett, B. Nature 507, 484–487 (2014).
Gomi, H. et al. Phys. Earth Planet. Inter. 224, 88–103 (2013).
Helffrich, G. & Kaneshima, S. Nature 468, 807–810 (2010).
Hirose, K., Labrosse, S. & Hernlund, J. Ann. Rev. Earth Planet. Sci. 41, 657–691 (2013).
Buffet, B. A. & Seagle, C. T. J. Geophys. Res. 115, B04407 (2010).
Fearn, D. R. & Looper, D. E. Nature 289, 393–394 (1981).
Landeau, M., Olson, P., Deguen, R. & Hirsh, B. H. Nat. Geosci. 9, 786–789 (2016).
Ćuk, M. & Stewart, S. T. Science 338, 1047–1052 (2012).
Canup, R. M. & Asphaug, E. Nature 412, 708–712 (2001).
Canup, R. M. Science 338, 1052–1055 (2012).
Rubie, D. et al. Earth Planet. Sci. Lett. 301, 31–42 (2011).
Kendall, J. D. & Melsoh, H. J. Earth Planet Sci. Lett. 448, 24–33 (2016).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Nakajima, M. Stratified by a sunken impactor. Nature Geosci 9, 734–735 (2016). https://doi.org/10.1038/ngeo2815
Published:
Issue Date:
DOI: https://doi.org/10.1038/ngeo2815
- Springer Nature Limited