Nitrogen isotopes and the trophic level of humans in archaeology
- R. Hedges, L. Reynard
- Geography
- 1 August 2007
Detection of breastfeeding and weaning in modern human infants with carbon and nitrogen stable isotope ratios.
- B. Fuller, J. L. Fuller, D. Harris, R. Hedges
- MedicineAmerican Journal of Physical Anthropology
- 1 February 2006
The finding of a carbon trophic level effect in breastfeeding infants suggests that (13)C-enrichments of approximately 1 per thousand in archaeological populations are not necessarily the result of the consumption of C(4)-based weaning foods such as maize or millet.
Improvements to the Pretreatment of Bone at Oxford
- C. Bronk Ramsey, T. Higham, A. Bowles, R. Hedges
- Environmental ScienceRadiocarbon: An International Journal of…
- 2004
Bone is one of the most widely used materials for dating archaeological activity. It is also relatively difficult to pretreat effectively and new methods are an area of active research. The purpose…
Paleolithic and neolithic lineages in the European mitochondrial gene pool.
- M. Richards, H. Côrte-Real, B. Sykes
- Geography, BiologyAmerican Journal of Human Genetics
- 1 July 1996
It follows that the major extant lineages throughout Europe predate the Neolithic expansion and that the spread of agriculture was a substantially indigenous development accompanied by only a relatively minor component of contemporary Middle Eastern agriculturalists.
Bone diagenesis: an overview of processes
- R. Hedges
- Environmental Science
- 1 August 2002
This overview is a summary of the state of understanding of processes and states in bone diagenesis, as seen from a chemical perspective. It deals with the significance and usefulness of the…
Nitrogen balance and δ15N: why you're not what you eat during pregnancy
- B. Fuller, J. L. Fuller, Nancy E. Sage, D. Harris, T. O’Connell, R. Hedges
- Environmental Science
- 15 December 2004
Carbon (13C/12C) and nitrogen (15N/14N) stable isotope ratios were longitudinally measured in human hair that reflected the period from pre-conception to delivery in 10 pregnant women. There was no…
RADIOCARBON DATES FROM THE OXFORD AMS SYSTEM: ARCHAEOMETRY DATELIST 19
- R. Hedges, R. Housley, C. Ramsey, G. J. V. Klinken
- Art, Geography
- 1 February 1987
Presentation de la 19e liste de datations par radiocarbone publiee par Archaeometry, contenant principalement le materiel date depuis le debut de l'annee 1993
Investigations into the effect of diet on modern human hair isotopic values.
- T. O’Connell, R. Hedges
- Environmental ScienceAmerican Journal of Physical Anthropology
- 1 April 1999
It is demonstrated that the magnitude of the nitrogen isotopic values of hair keratin reflects the proportion of animal protein consumed in the diet: omnivores and ovo-lacto-vegetarians have higher delta15N than vegans, providing the first independent support for a long-held theory that, for individuals within a single population, a diet high in meat equates to elevated nitrogen isotopy values in the body relative to others eating less animal protein.
RADIOCARBON DATES FROM THE OXFORD AMS SYSTEM: ARCHAEOMETRY DATELIST 24
- R. Hedges, P. Pettitt, C. Ramsey, G. J. V. Klinken
- Environmental Science
- 1 August 1997
This twenty-fourth list of accelerator dates consists mainly of material dated since the beginning of 1994, but includes a number of measurements made earlier in the dating programme. I t also…
Stable isotope evidence for similarities in the types of marine foods used by Late Mesolithic humans at sites along the Atlantic coast of Europe
- M. Richards, R. Hedges
- Environmental Science, Geography
- 1 June 1999
Abstract Human bone collagen stable isotope analysis of humans from coastal Mesolithic sites in Scotland, Denmark, France and Portugal indicates the importance of marine foods in the diet. We define…
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