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Shock Compression of Iron Sulphide and the Possible Sulphur Content of the Earth's Core

King, D. A. and Ahrens, T. J. (1973) Shock Compression of Iron Sulphide and the Possible Sulphur Content of the Earth's Core. Nature Physical Science, 243 (127). pp. 82-84. ISSN 0300-8746. doi:10.1038/physci243082a0. https://resolver.caltech.edu/CaltechAUTHORS:20151106-101705516

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Abstract

A light component in the Earth's outer core could account for its apparent lower density and higher seismic parameter than pure iron. On the basis of shock data for iron and iron–nickel, Birch and McQueen and Marsh concluded that the outer core was less dense than pure iron by 10 and 8 weight %, respectively. To account for these discrepancies both sulphur and silicon have been proposed as alloying elements with iron in the outer core.


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http://dx.doi.org/10.1038/physci243082a0DOIArticle
http://www.nature.com/nature-physci/journal/v243/n127/abs/physci243082a0.htmlPublisherArticle
Additional Information:© 1973 Nature Publishing Group. Received April 23, 1973. This research was supported by a grant from the National Science Foundation. We thank R. V. Gibbons and A. Chodos for help in characterizing our samples, D. L. Anderson and R. V. Gibbons for reading the manuscript and B. Kamb for discussions.
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Issue or Number:127
DOI:10.1038/physci243082a0
Record Number:CaltechAUTHORS:20151106-101705516
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20151106-101705516
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61939
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:06 Nov 2015 18:22
Last Modified:10 Nov 2021 22:55

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