Geochemistry: Does U-Pb date Earth's core formation?; How well can Pb isotopes date core formation? (Reply)

B. J. Wood; A. N. Halliday

doi:10.1038/nature05360

Geochemistry: Does U-Pb date Earth's core formation?; How well can Pb isotopes date core formation? (Reply)

B. J. Wood^*, A. N. Halliday

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Yin and Jacobsen and Kamber and Kramers highlight several issues to do with the tungsten (W) and lead (Pb) isotopic chronometry of terrestrial accretion and core segregation, although none of these affect our model or conclusions. Yin and Jacobsen suggest that it is not clear from our analysis that ¹⁸²Hf-¹⁸²W provides a reliable system of chronometry for the bulk of core formation, whereas ^235/238U-^207/206Pb relates to the very last stage of sulphide segregation -which was exactly our point and is clarified here.

Original language	English
Pages (from-to)	E2-E3
Number of pages	2
Journal	Nature
Volume	444
Issue number	7115
DOIs	https://doi.org/10.1038/nature05360
Publication status	Published - 2 Nov 2006

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AB - Yin and Jacobsen and Kamber and Kramers highlight several issues to do with the tungsten (W) and lead (Pb) isotopic chronometry of terrestrial accretion and core segregation, although none of these affect our model or conclusions. Yin and Jacobsen suggest that it is not clear from our analysis that 182Hf-182W provides a reliable system of chronometry for the bulk of core formation, whereas 235/238U-207/206Pb relates to the very last stage of sulphide segregation -which was exactly our point and is clarified here.

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Geochemistry: Does U-Pb date Earth's core formation?; How well can Pb isotopes date core formation? (Reply)

Abstract

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