Comment: Hf-isotope heterogeneity in zircon 91500

W. L. Griffin; N. J. Pearson; E. A. Belousova; A. Saeed

doi:10.1016/j.chemgeo.2006.03.007

Comment: Hf-isotope heterogeneity in zircon 91500

W. L. Griffin^*, N. J. Pearson, E. A. Belousova, A. Saeed

^*Corresponding author for this work

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

312 Citations (Scopus)

Abstract

A database of > 600 analyses of the zircon "standard" Harvard 91500 shows considerable heterogeneity in ¹⁷⁶Hf/¹⁷⁷Hf; the distribution is essentially bimodal with major peaks at 0.282284 ± 22 and 0.282330 ± 29 (2σ). Although the zircon shows a wide range of ¹⁷⁶Yb/¹⁷⁷Hf and ¹⁷⁶Lu/¹⁷⁷Hf, there is no correlation of ¹⁷⁶Hf/¹⁷⁷Hf with either parameter. This isotopic heterogeneity limits the degree to which 91500 can be used to evaluate the precision or accuracy of different treatments of mass bias and overlap corrections for in situ analysis of Hf-isotope compositions in zircons, or differences between solution and in situ data.

Original language	English
Pages (from-to)	358-363
Number of pages	6
Journal	Chemical Geology
Volume	233
Issue number	3-4
DOIs	https://doi.org/10.1016/j.chemgeo.2006.03.007
Publication status	Published - 15 Oct 2006

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title = "Comment: Hf-isotope heterogeneity in zircon 91500",

abstract = "A database of > 600 analyses of the zircon {"}standard{"} Harvard 91500 shows considerable heterogeneity in 176Hf/177Hf; the distribution is essentially bimodal with major peaks at 0.282284 ± 22 and 0.282330 ± 29 (2σ). Although the zircon shows a wide range of 176Yb/177Hf and 176Lu/177Hf, there is no correlation of 176Hf/177Hf with either parameter. This isotopic heterogeneity limits the degree to which 91500 can be used to evaluate the precision or accuracy of different treatments of mass bias and overlap corrections for in situ analysis of Hf-isotope compositions in zircons, or differences between solution and in situ data.",

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T2 - Hf-isotope heterogeneity in zircon 91500

AU - Griffin, W. L.

AU - Pearson, N. J.

AU - Belousova, E. A.

AU - Saeed, A.

PY - 2006/10/15

Y1 - 2006/10/15

N2 - A database of > 600 analyses of the zircon "standard" Harvard 91500 shows considerable heterogeneity in 176Hf/177Hf; the distribution is essentially bimodal with major peaks at 0.282284 ± 22 and 0.282330 ± 29 (2σ). Although the zircon shows a wide range of 176Yb/177Hf and 176Lu/177Hf, there is no correlation of 176Hf/177Hf with either parameter. This isotopic heterogeneity limits the degree to which 91500 can be used to evaluate the precision or accuracy of different treatments of mass bias and overlap corrections for in situ analysis of Hf-isotope compositions in zircons, or differences between solution and in situ data.

AB - A database of > 600 analyses of the zircon "standard" Harvard 91500 shows considerable heterogeneity in 176Hf/177Hf; the distribution is essentially bimodal with major peaks at 0.282284 ± 22 and 0.282330 ± 29 (2σ). Although the zircon shows a wide range of 176Yb/177Hf and 176Lu/177Hf, there is no correlation of 176Hf/177Hf with either parameter. This isotopic heterogeneity limits the degree to which 91500 can be used to evaluate the precision or accuracy of different treatments of mass bias and overlap corrections for in situ analysis of Hf-isotope compositions in zircons, or differences between solution and in situ data.

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DO - 10.1016/j.chemgeo.2006.03.007

M3 - Article

AN - SCOPUS:33748420792

SN - 0009-2541

VL - 233

SP - 358

EP - 363

JO - Chemical Geology

JF - Chemical Geology

IS - 3-4

ER -

Comment: Hf-isotope heterogeneity in zircon 91500

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