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Science 28 November 2008:
Vol. 322. no. 5906, pp. 1338 - 1340
DOI: 10.1126/science.1166260
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Perspectives

GEOCHEMISTRY:
Carbon in Charge

Rob L. Evans

Laboratory data suggest that enhanced conductivity in the deep mantle can be caused by extremely small amounts of carbon-rich melt.

Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA. E-mail: revans{at}whoi.edu

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Science. ISSN 0036-8075 (print), 1095-9203 (online)