Cook, G. T., Higham, T. F G., Naysmith, P., Brock, F., Freeman, S. and Bayliss, A. (2012). Assessment of infinite-age bones from the Upper Thames Valley, UK, as 14C background standards. Proceedings of the Sixth Radiocarbon and Archaeology Symposium, held in Paphos, Cyprus, 10'“15 April 2011.. Vol 54(3-4), pp. 845-853. https://doi.org/10.2458/azu_js_rc.v54i3'“4.16161.

Title The title of the publication or report Title:	Assessment of infinite-age bones from the Upper Thames Valley, UK, as 14C background standards
Issue The name of the volume or issue Issue:	Proceedings of the Sixth Radiocarbon and Archaeology Symposium, held in Paphos, Cyprus, 10'“15 April 2011.
Series The series the publication or report is included in Series:	Radiocarbon
Volume Volume number and part Volume:	54 (3-4)
Number of Pages The number of pages in the publication or report Number of Pages:	809
Page Start/End The start and end page numbers. Page Start/End:	845 - 853
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Publication Type The type of publication - report, monograph, journal article or chapter from a book Publication Type:	Journal
Abstract The abstract describing the content of the publication or report Abstract:	It is becoming increasingly clear that in order to generate accurate radiocarbon dates for bone collagen samples it is important to determine a sample-specific background correction to account for the greater complexity and higher number of steps in the pretreatment chemistry of this material. To provide suitable samples for the 14C community, 7 bone samples were obtained from contexts within British gravel quarries, which according to other dating techniques or stratigraphic information, should be of infinite age with respect to 14C. The bones were analyzed at the Oxford Radiocarbon Accelerator Unit (ORAU) and the Scottish Universities Environmental Research Centre (SUERC) to determine their suitability. Shows that 6 of the samples were indistinguishable from background. Both institutions measured finite ages for sample 387 from Oxey Mead that were statistically indistinguishable. Further work is required to establish whether this is because the bone was intrusive and of a younger age than expected or whether it is contaminated either postdepositionally or in the laboratory. The former explanation is argued to be favourable because (1) the 2 chemistry laboratories use very different pretreatment schemes, (2) collagen yields were high, and (3) the laboratories produced ages that are in good agreement. The 6 'greater than' age samples will be made available to 14C laboratories to be used as background standards.
Author The authors of this publication or report Author:	Gordon T Cook Thomas F G Higham Philip Naysmith Fiona Brock S P H T Freeman Alex Bayliss
Year of Publication The year the book, article or report was published Year of Publication:	2012
Locations Any locations covered by the publication or report. This is not the place the book or report was published. Subjects / Periods:	Gravel Quarries (Auto Detected Subject) Bone (Auto Detected Subject)
Source Where the record has come from or which dataset it was orginally included in. Source:	BIAB (biab_online)
Relations Other resources which are relevant to this publication or report Relations:	DOI: https://doi.org/10.2458/azu_js_rc.v54i3'“4.16161
Created Date The date the record of the pubication was first entered Created Date:	24 Feb 2013