Document Detail


Technical note: Some observations on the conversion of dental enamel δ(18) o(p) values to δ(18) o(w) to determine human mobility.
MedLine Citation:
PMID:  21541927     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
It has become a widespread practice to convert δ(18) O(p) values measured in human and animal dental enamel to a corresponding value of δ(18) O(w) and compare these data with mapped δ(18) O(w) groundwater or meteoric water values to locate the region where the owner of the tooth lived during the formation of the enamel. Because this is a regression procedure, the errors associated with the predicted δ(18) O(w) values will depend critically on the correlation between the comparative data used to perform the regression. By comparing four widely used regression equations we demonstrate that the smallest 95% error is likely to be greater than ±1% in δ(18) O(w) , and could be as large as ±3.5%. These values are significantly higher than those quoted in some of the recent literature, and measurements with errors at the higher end of this range would render many of the published geographical attributions statistically unsupportable. We suggest that the simplest solution to this situation is to make geographical attributions based on the direct comparison of measured values of δ(18) O(p) rather than on predicted values of δ(18) O(w) . Am J Phys Anthropol, 2011. © 2011 Wiley-Liss, Inc.
Authors:
A M Pollard; M Pellegrini; J A Lee-Thorp
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-3
Journal Detail:
Title:  American journal of physical anthropology     Volume:  -     ISSN:  1096-8644     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-5-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0400654     Medline TA:  Am J Phys Anthropol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Wiley-Liss, Inc.
Affiliation:
Research Laboratory for Archaeology and the History of Art, University of Oxford, Oxford OX1 3QY, UK. mark.pollard@rlaha.ox.ac.uk.
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