Absolute isotopic abundance ratios and the accuracy of Δ47 measurements
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- 作者：M. Daë ; rona ; ; D. Blamarta ; M. Perala ; H.P. Affekb
- 关键词：Clumped isotopes ; Triple oxygen isotopes ; Oxygen-17 anomalies ; Absolute isotopic abundance ratios
- 刊名：Chemical Geology
- 出版年：2016
- 出版时间：28 November 2016
- 年：2016
- 卷：442
- 期：Complete
- 页码：83-96
- 全文大小：17350 K
文摘
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Measured Δ47 values are a function of absolute 13C/12C, 17O/16O and 18O/16O ratios.
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Using different isotopic parameters produces systematic Δ47 offsets (up to 0.04‰).
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These offsets are not canceled out by current standardization procedures.
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Inaccurate parameters may partly explain current inter-laboratory discrepancies.
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Isotopic parameters of Brand et al. (2010) appear to yield accurate Δ47 values.