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Christina Cheung Hannes Schroeder Robert E. M. Hedges 《Archaeological and Anthropological Sciences》2012,4(1):61-73
This study uses stable isotope analyses (δ13C and δ15N) of human bone collagen to reconstruct the diet of three Romano-British (first to early fifth century AD) populations from
Gloucestershire in South West England. Gloucestershire was an important part of Roman Britain with two major administrative
centres at Gloucester (Glevum) and Cirencester (Corinium) and numerous smaller settlements and farmsteads. To investigate
potential dietary differences between the rural and urban populations of Roman Gloucestershire, we compared human bone collagen
stable isotope values from 32 individuals from urban Gloucester with those of 46 individuals from two rural cemeteries at
Horcott Quarry and Cotswold Community, respectively. Seven individuals from urban Gloucester were buried in a mass grave;
all others were buried in single inhumations. Results show small but significant differences in stable isotope ratios between
the urban and rural populations which indicate that the urban population might have consumed slightly more marine and/or freshwater
resources than the people living in the rural communities. We interpret this difference as a direct reflection of Rome’s influence
on Gloucester’s population and the town’s economic status. Subtle differences in stable isotope ratios were also observed
at the site level, as burial practice does correlate with diet in some cases. Overall, the results from this study demonstrate
that diet, as reconstructed through stable isotope analysis, is a very sensitive, if settlement-specific, indicator of social
differentiation and culture change. 相似文献
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Ute Christina Bauer 《Standort - Zeitschrift für angewandte Geographie》2011,121(4):141-144
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Interpreting Past Human Diets Using Stable Isotope Mixing Models—Best Practices for Data Acquisition
Journal of Archaeological Method and Theory - Using stable isotope mixing models (SIMMs) to quantify past diets is becoming increasingly common in archaeology. This study highlights important... 相似文献
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Archaeological bones of varying preservation have been treated with 0·1 M acetic acid in order to investigate the effect on structural and chemical alterations caused by diagenesis. Acetic acid is commonly used as a “cleaning agent” for removing diagenetic carbonate from bone and enamel, in an attempt to recover original, biogenic signals for use in dietary and14C dating studies.Diagenetic parameters were measured before and after treatment on a range of archaeological bones with good and bad preservation. Histological preservation defined the behaviour of the correlating parameters, where correlation coefficients between carbonate content and crystallinity, microporosity and macroporosity increased significantly after treatment. For histologically well preserved material, acetic acid is effective at returning carbonate content to around that of modern bone. Where bone is extensively damaged by micro-organisms, “loose” diagenetic material can be removed, but a fraction largely composed of hypermineralized bioapatite remains, which, we believe, cannot be reliably used to obtain accurate biological signals. 相似文献