Inter-laboratory comparison of oxygen isotope compositions from biogenic silica

Bernhard Chapligin, Melanie J. Leng, Elizabeth Webb, Anne Alexandre, Justin P. Dodd, Akira Ijiri, Andreas Lücke, Aldo Shemesh, Andrea Abelmann, Ulrike Herzschuh, Fred J. Longstaffe, Hanno Meyer, Robert Moschen, Yusuke Okazaki, Nicholas H. Rees, Zachary D. Sharp, Hilary J. Sloane, Corinne Sonzogni, George E.A. Swann, Florence SylvestreJonathan J. Tyler, Ruth Yam

Research output: Contribution to journalArticle

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Abstract

Several techniques have been introduced in the last decades for the dehydration and release of O2 from biogenic silica (opal-A) for oxygen-isotope analysis. However, only one silica standard is universally available: a quartz standard (NBS28) distributed by the IAEA, Vienna. Hence, there is a need for biogenic silica working standards. This paper compares the existing methods of oxygen-isotope analyses of opal-A and aims to characterize additional possible working standards to calibrate the δ18O values of biogenic silica. For this purpose, an inter-laboratory comparison was organized. Six potential working standard materials were analysed repeatedly against NBS28 by eight participating laboratories using their specific analytical methods. The materials cover a wide range of δ18O values (+23 to +43‰) and include diatoms (marine, lacustrine), phytoliths and synthetically-produced hydrous silica. To characterize the proposed standards, chemical analyses and imaging by scanning electron microscopy (SEM) were also performed. Despite procedural differences at each laboratory, all methods are in reasonable agreement with a standard deviation (SD) for δ18O values between 0.3‰ and 0.9‰ (1σ). Based on the results, we propose four additional biogenic silica working standards (PS1772-8: 42.8‰; BFC: 29.0‰; MSG60: 37.0‰; G95-25-CL leaves: 36.6‰) for δ18O analyses, available on request through the relevant laboratories.

Original languageEnglish
Pages (from-to)7242-7256
Number of pages15
JournalGeochimica et Cosmochimica Acta
Volume75
Issue number22
DOIs
Publication statusPublished - Nov 15 2011
Externally publishedYes

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Oxygen Isotopes
interlaboratory comparison
Silicon Dioxide
oxygen isotope
silica
Chemical analysis
opal
phytolith
Quartz
dehydration
Dehydration
analytical method
diatom
scanning electron microscopy
quartz
Imaging techniques
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology

Cite this

Chapligin, B., Leng, M. J., Webb, E., Alexandre, A., Dodd, J. P., Ijiri, A., ... Yam, R. (2011). Inter-laboratory comparison of oxygen isotope compositions from biogenic silica. Geochimica et Cosmochimica Acta, 75(22), 7242-7256. https://doi.org/10.1016/j.gca.2011.08.011

Inter-laboratory comparison of oxygen isotope compositions from biogenic silica. / Chapligin, Bernhard; Leng, Melanie J.; Webb, Elizabeth; Alexandre, Anne; Dodd, Justin P.; Ijiri, Akira; Lücke, Andreas; Shemesh, Aldo; Abelmann, Andrea; Herzschuh, Ulrike; Longstaffe, Fred J.; Meyer, Hanno; Moschen, Robert; Okazaki, Yusuke; Rees, Nicholas H.; Sharp, Zachary D.; Sloane, Hilary J.; Sonzogni, Corinne; Swann, George E.A.; Sylvestre, Florence; Tyler, Jonathan J.; Yam, Ruth.

In: Geochimica et Cosmochimica Acta, Vol. 75, No. 22, 15.11.2011, p. 7242-7256.

Research output: Contribution to journalArticle

Chapligin, B, Leng, MJ, Webb, E, Alexandre, A, Dodd, JP, Ijiri, A, Lücke, A, Shemesh, A, Abelmann, A, Herzschuh, U, Longstaffe, FJ, Meyer, H, Moschen, R, Okazaki, Y, Rees, NH, Sharp, ZD, Sloane, HJ, Sonzogni, C, Swann, GEA, Sylvestre, F, Tyler, JJ & Yam, R 2011, 'Inter-laboratory comparison of oxygen isotope compositions from biogenic silica', Geochimica et Cosmochimica Acta, vol. 75, no. 22, pp. 7242-7256. https://doi.org/10.1016/j.gca.2011.08.011
Chapligin B, Leng MJ, Webb E, Alexandre A, Dodd JP, Ijiri A et al. Inter-laboratory comparison of oxygen isotope compositions from biogenic silica. Geochimica et Cosmochimica Acta. 2011 Nov 15;75(22):7242-7256. https://doi.org/10.1016/j.gca.2011.08.011
Chapligin, Bernhard ; Leng, Melanie J. ; Webb, Elizabeth ; Alexandre, Anne ; Dodd, Justin P. ; Ijiri, Akira ; Lücke, Andreas ; Shemesh, Aldo ; Abelmann, Andrea ; Herzschuh, Ulrike ; Longstaffe, Fred J. ; Meyer, Hanno ; Moschen, Robert ; Okazaki, Yusuke ; Rees, Nicholas H. ; Sharp, Zachary D. ; Sloane, Hilary J. ; Sonzogni, Corinne ; Swann, George E.A. ; Sylvestre, Florence ; Tyler, Jonathan J. ; Yam, Ruth. / Inter-laboratory comparison of oxygen isotope compositions from biogenic silica. In: Geochimica et Cosmochimica Acta. 2011 ; Vol. 75, No. 22. pp. 7242-7256.
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AU - Ijiri, Akira

AU - Lücke, Andreas

AU - Shemesh, Aldo

AU - Abelmann, Andrea

AU - Herzschuh, Ulrike

AU - Longstaffe, Fred J.

AU - Meyer, Hanno

AU - Moschen, Robert

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AU - Rees, Nicholas H.

AU - Sharp, Zachary D.

AU - Sloane, Hilary J.

AU - Sonzogni, Corinne

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