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dc.contributor.authorAscough, Philippa L.
dc.contributor.authorCook, Gordon T.
dc.contributor.authorChurch, Mike J.
dc.contributor.authorDugmore, Andrew J.
dc.contributor.authorMcGovern, Thomas H.
dc.contributor.authorDunbar, Elaine
dc.contributor.authorEinarsson, Árni
dc.contributor.authorFriðriksson, Adolf
dc.contributor.authorGestsdóttir, Hildur
dc.date.accessioned2021-02-11T20:59:38Z
dc.date.available2021-02-11T20:59:38Z
dc.date.issued2007-01-01
dc.identifier.citationAscough, P. L., Cook, G. T., Church, M. J., Dugmore, A. J., McGovern, T. H., Dunbar, E., ... & Gestsdóttir, H. (2007). Reservoirs and radiocarbon: 14C dating problems in Mývatnssveit, northern Iceland. Radiocarbon, 49(2), 947-961.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200042818
dc.identifier.urihttp://hdl.handle.net/10150/653993
dc.descriptionFrom the 19th International Radiocarbon Conference held in Keble College, Oxford, England, April 3-7, 2006.
dc.description.abstractThis paper examines 2 potential sources of the radiocarbon offset between human and terrestrial mammal (horse) bones recovered from Norse (~AD 870-1000) pagan graves in Mývatnssveit, north Iceland. These are the marine and freshwater 14C reservoir effects that may be incorporated into human bones from dietary sources. The size of the marine 14C reservoir effect (MRE) during the Norse period was investigated by measurement of multiple paired samples (terrestrial mammal and marine mollusk shell) at 2 archaeological sites in Mývatnssveit and 1 site on the north Icelandic coast. These produced 3 new Delta-R values for the north coast of Iceland, indicating a Delta-R of 106 +/- 10 14C yr at AD 868-985, and of 144 +/- 28 14C yr at AD 1280-1400. These values are statistically comparable and give an overall weighted mean R of 111 +/- 10 14C yr. The freshwater reservoir effect was similarly quantified using freshwater fish bones from a site in Mývatnssveit. These show an offset of between 1285 and 1830 14C yr, where the fish are depleted in 14C relative to the terrestrial mammals. This is attributed to the input of geothermally derived CO2 into the groundwater and subsequently into Lake Mývatn. We conclude the following: i) some of the Norse inhabitants of Mývatnssveit incorporated non-terrestrial resources into their diet that may be identified from the stable isotope composition of their bone collagen; ii) the MRE off the north Icelandic coast during the Norse period fits a spatial gradient of wider North Atlantic MRE values with increasing values to the northwest; and iii) it is important to consider the effect that geothermal activity could have on the 14C activity of samples influenced by groundwater at Icelandic archaeological sites.
dc.language.isoen
dc.publisherDepartment of Geosciences, The University of Arizona
dc.relation.urlhttp://radiocarbon.webhost.uits.arizona.edu/
dc.rightsCopyright © by the Arizona Board of Regents on behalf of the University of Arizona. All rights reserved.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleReservoirs and Radiocarbon: 14C Dating Problems in Mýatnssveit, Northern Iceland
dc.typeProceedings
dc.typetext
dc.identifier.journalRadiocarbon
dc.description.collectioninformationThe Radiocarbon archives are made available by Radiocarbon and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume49
dc.source.issue2
dc.source.beginpage947
dc.source.endpage961
refterms.dateFOA2021-02-11T20:59:40Z


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