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33 results on '"Higham, Thomas"'

5. New ams c-14 dates for human remains from stone age sites in the iron gates reach of the Danube, southeast europe

Author

Bonsall, Clive, Vasić, Rastko, Boroneant, Adina, Roksandić, Mirjana, Soficaru, Andrei, McSweeney, Kathleen, Evatt, Anna, Aguraiuja, Uelle, Pickard, Catriona, Dimitrijević, Vesna, Higham, Thomas, Hamilton, Derek, Cook, Gordon, Bonsall, Clive, Vasić, Rastko, Boroneant, Adina, Roksandić, Mirjana, Soficaru, Andrei, McSweeney, Kathleen, Evatt, Anna, Aguraiuja, Uelle, Pickard, Catriona, Dimitrijević, Vesna, Higham, Thomas, Hamilton, Derek, and Cook, Gordon

Abstract

Archaeological investigations in the Iron Gates reach of the Lower Danube Valley between 1964 and 1984 revealed an important concentration of Stone Age sites, which together provide the most detailed record of Mesolithic and Early Neolithic settlement from any area of southeastern Europe. Over 425 human burials were excavated from 15 sites. Of these, less than one-fifth have been directly dated. This article presents 37 new AMS dates on human bone from five sites in the Iron Gates, together with the corresponding delta C-13 and delta N-15 values. They include the first dates on human bone from two sites, Icoana and Velesnica. The results are important for the chronology of Stone Age mortuary practices in the Iron Gates and the timing of the Mesolithic-Neolithic transition in the region.

Published
2015

6. New AMS 14C Dates for Human Remains from Stone Age Sites in the Iron Gates Reach of the Danube, Southeast Europe

Author

Bonsall, Clive, primary, Vasić, Rastko, additional, Boroneanţ, Adina, additional, Roksandic, Mirjana, additional, Soficaru, Andrei, additional, McSweeney, Kathleen, additional, Evatt, Anna, additional, Aguraiuja, Ülle, additional, Pickard, Catriona, additional, Dimitrijević, Vesna, additional, Higham, Thomas, additional, Hamilton, Derek, additional, and Cook, Gordon, additional

Published
2015
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7. Food for Thought: Re-Assessing Mesolithic Diets in the Iron Gates

Author

Bonsall, Clive, primary, Cook, Gordon, additional, Pickard, Catriona, additional, McSweeney, Kathleen, additional, Sayle, Kerry, additional, Bartosiewicz, László, additional, Radovanović, Ivana, additional, Higham, Thomas, additional, Soficaru, Andrei, additional, and Boroneanţ, Adina, additional

Published
2015
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21. NEW AMS 14C DATES FOR HUMAN REMAINS FROM STONE AGE SITES IN THE IRON GATES REACH OF THE DANUBE, SOUTHEAST EUROPE.

Author

Bonsall, Clive, Vasic, Rastko, Boroneant, Adina, Roksandic, Mirjana, Soficaru, Andrei, McSweeney, Kathleen, Evatt, Anna, Aguraiuja, Ülle, Pickard, Catriona, Dimitrijevic, Vesna, Higham, Thomas, Hamilton, Derek, and Cook, Gordon

Subjects
ARCHAEOLOGICAL human remains, RADIOCARBON dating, IRON Gates (Romania & Serbia), STONE Age, MESOLITHIC Period
Abstract

Archaeological investigations in the Iron Gates reach of the Lower Danube Valley between 1964 and 1984 revealed an important concentration of Stone Age sites, which together provide the most detailed record of Mesolithic and Early Neolithic settlement from any area of southeastern Europe. Over 425 human burials were excavated from 15 sites. Of these, less than one-fifth have been directly dated. This article presents 37 new AMS dates on human bone from five sites in the Iron Gates, together with the corresponding δ13C and δ15N values. They include the first dates on human bone from two sites, Icoana and Velesnica. The results are important for the chronology of Stone Age mortuary practices in the Iron Gates and the timing of the Mesolithic-Neolithic transition in the region. [ABSTRACT FROM AUTHOR]

Published
2015
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28. COMPOUND-SPECIFIC RADIOCARBON DATING OF ESSENTIAL AND NONESSENTIAL AMINO ACIDS: TOWARDS DETERMINATION OF DIETARY RESERVOIR EFFECTS IN HUMANS.

Author

Nalawade-Chavan, Shweta, McCullagh, James, Hedges, Robert, Bonsall, Clive, Boroneant, Adina, Ramsey, Christopher Bronk, and Higham, Thomas

Subjects
RADIOCARBON dating, COLLAGEN, CARBON isotopes, MESOLITHIC Period, ARCHAEOLOGICAL human remains, HIGH performance liquid chromatography, ARCHAEOLOGY methodology, ACCELERATOR mass spectrometry
Abstract

When humans consume foods from different radiocarbon reservoirs offset in age to the atmosphere, inaccuracies in the 14C date of bone collagen can occur. Mesolithic human skeletons from the Iron Gates section of the Lower Danube Valley have yielded reservoir offsets of up to ~500 yr. This has been demonstrated through direct dating of bulk collagen from human bones and the remains of ungulate bone projectile points that were found embedded in them (Cook et al. 2001). We present improvements to a novel HPLC method for the detection and separation of underivatized amino acids using a wateronly mobile phase free of organic or inorganic modifiers, ensuring very low carbon backgrounds. Our hypothesis is that direct 14C dating of single essential and non-essential amino acids might allow an improvement in the dating accuracy for reservoiraffected human bones. The method facilitates separation of less polar amino acids (mostly "essential"), currently not possible in the recently published protocol. We discuss methodological developments, demonstrate carbon backgrounds, and present analytical approaches to minimize their effects. We validate the precision and accuracy of the method by accelerator mass spectrometry (AMS) dating relatively modern and 14C-dead, known-age bone standards. Finally, we apply the method to the dating of single amino acids from bone samples with a proven ~500-yr carbon reservoir effect from Mesolithic burials at the Iron Gates sites. We investigate whether differences can be found in AMS dates for essential and non-essential amino acids since, although contemporaneous, these are expected to derive from dietary sources with differing 14C reservoirs. [ABSTRACT FROM AUTHOR]

Published
2013
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29. HYDROXYPROLINE DATING: EXPERIMENTS ON THE 14C ANALYSIS OF CONTAMINATED AND LOW-COLLAGEN BONES.

Author

Marom, Anat, McCullagh, James S. O., Higham, Thomas F. G., and Hedges, Robert E. M.

Subjects
COLLAGEN, HYDROXYPROLINE, RADIOCARBON dating, CARBON isotopes, ARCHAEOLOGY methodology, ACCELERATOR mass spectrometry, RADIOACTIVE decontamination
Abstract

Dating of the amino acid hydroxyproline from bone collagen has been shown to produce accurate and reliable radiocarbon dates. This article presents further application of the method demonstrating it can be used to obtain dates for both low-collagen and contaminated bones, extending the capability of 14C dating archaeological bone from conventional limits imposed by alternative pretreatment methods. The method therefore has the potential for significantly benefiting the accelerator mass spectrometry (AMS) dating community in the 14C dating of archaeological bone. [ABSTRACT FROM AUTHOR]

Published
2013
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