Revisiting the potential of carbonized grain to preserve biogenic 87 Sr/86 Sr signatures within the burial environment

Styring, A.K.; Evans, J.A.; Nitsch, E.K.; Lee-Thorp, J.A.; Bogaard, A.. 2018 Revisiting the potential of carbonized grain to preserve biogenic 87 Sr/86 Sr signatures within the burial environment. Archaeometry, 61 (1). 179-193. 10.1111/arcm.12398

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Official URL: http://dx.doi.org/10.1111/arcm.12398

Abstract/Summary

Strontium (Sr) isotope analysis of archaeological crops is a potential method of provenancing and identifying the movement of crops in the past, but there remains uncertainty about whether original 87Sr/86Sr values can be obtained from carbonized buried grains. We have determined that hydrochloric acid (HCl) leaching removes some, but not all, exogenous Sr from carbonized cereal grains buried in soil for up to one year. We conclude that while further work could refine the leaching method, Sr isotope analysis of archaeological cereal grains can distinguish crops sourced from outside a particular (e.g., local) area if it can be shown that leaching moves grain 87Sr/86Sr values significantly away from the expected Sr signature.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1111/arcm.12398
ISSN:	0003813X
Date made live:	14 Mar 2019 09:15 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/522501

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1111/arcm.12398

ISSN:

0003813X

Date made live:

14 Mar 2019 09:15 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/522501