A review of diatom ?18O in palaeoceanography

Swann, George E.A.; Leng, Melanie J.

Abstract

Measurements of diatom oxygen isotopes (?18Odiatom) hold the potential to provide an important additional source of palaeoceanographic information in regions depleted in carbonates. However, despite analyses of ?18Odiatom being carried out since the 1970s and the increasingly widespread use of ?18Odiatom in palaeolimnology since the 1990s, to date only a handful of studies have applied ?18Odiatom in marine reconstructions. Here the historical development and current state of affairs concerning the usage of ?18Odiatom in palaeoceanography is reviewed. This includes a summary of:

1. sample purification and analytical techniques for ?18Odiatom;
2. existing palaeoceanographic reconstructions with an emphasis on sites at which both diatoms and foraminifera have been analysed for ?18O;
3. uncertainties associated with ?18Odiatom including the presence of isotope vital effects and secondary isotope exchanges;
4. a review of the current and future developments required to improve the reliability of ?18Odiatom based reconstructions in palaeoceanography.

Citation

Swann, G. E., & Leng, M. J. A review of diatom ?18O in palaeoceanography. Quaternary Science Reviews, 28(5-6), https://doi.org/10.1016/j.quascirev.2008.11.002

• Journal Article Type: Article
• Deposit Date: Jun 17, 2013
• Journal: Quaternary Science Reviews
• Print ISSN: 0277-3791
• Electronic ISSN: 0277-3791
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 28
• Issue: 5-6
• DOI: https://doi.org/10.1016/j.quascirev.2008.11.002
• Public URL: https://nottingham-repository.worktribe.com/output/1014917
• Publisher URL: http://dx.doi.org/10.1016/j.quascirev.2008.11.002
• Additional Information: NOTICE: this is the author’s version of a work that was accepted for publication in Quaternary Science Reviews. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Quaternary Science Reviews, 28(5-6), (2009), doi: 10.1016/j.quascirev.2008.11.002