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Nature 422, 707-711 (17 April 2003) | doi:10.1038/nature01559;

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Global anisotropy and the thickness of continents

For decades there has been a vigorous debate about the depth extent of continental roots. The analysis of heat-flow, mantle-xenolith and electrical-conductivity data all indicate that the coherent, conductive part of continental roots (the |[lsquo]|tectosphere|[rsquo]|) is at most 200–250|[thinsp]|km thick.

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