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An Investigation into 14C offsets in Modern Mollusk Shell and Flesh from Irish Coasts shows no Significant differences in areas of Carbonate Geology

Published online by Cambridge University Press:  11 October 2019

K R Allen Open the ORCID record for K R Allen [Opens in a new window] ,
P J Reimer ,
D W Beilman  and
S E Crow
K R Allen*
Affiliation:
School of Natural & Built Environment, 14CHRONO Centre for Climate, the Environment & Chronology, Queen’s University Belfast, Belfast, BT7 1NN, United Kingdom
P J Reimer
Affiliation:
School of Natural & Built Environment, 14CHRONO Centre for Climate, the Environment & Chronology, Queen’s University Belfast, Belfast, BT7 1NN, United Kingdom
D W Beilman
Affiliation:
School of Natural & Built Environment, 14CHRONO Centre for Climate, the Environment & Chronology, Queen’s University Belfast, Belfast, BT7 1NN, United Kingdom College of Social Sciences, Department of Geography, University of Hawai’i at Manoa, Honolulu, HI 96822, USA
S E Crow
Affiliation:
School of Natural & Built Environment, 14CHRONO Centre for Climate, the Environment & Chronology, Queen’s University Belfast, Belfast, BT7 1NN, United Kingdom College of Tropical Agriculture & Human Resources, University of Hawai’i at Manoa, Honolulu, HI 96822, USA
*
*Corresponding author. Email: [email protected].
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Abstract

Our ability to reliably use radiocarbon (14C) dates of mollusk shells to estimate calendar ages may depend on the feeding preference and habitat of a particular species and the geology of the region. Gastropods that feed by scraping are prone to incorporation of carbon from the substrate into their shells as evidenced by studies comparing the radiocarbon dates of shells and flesh from different species on different substrates (Dye 1994; Hogg et al. 1998). Limpet shells (Patella sp.) are commonly found in prehistoric midden deposits in the British Isles and elsewhere, however these shells have largely been avoided for radiocarbon dating in regions of limestone outcrops. Results from limpets (Patella vulgata) collected alive on limestone and volcanic substrates on the coasts of Ireland indicate that the shells were formed in equilibrium with the seawater, with no significant 14C offsets. Limpets collected from the east coast of Northern Ireland have elevated 14C due to the output of Sellafield nuclear fuel reprocessing plant. In all locations, the flesh was depleted in 14C compared to the shells. The results will have an important consequence for radiocarbon dating of midden deposits as well as the bone of humans and animals who fed on the limpets.

Keywords

limestonelimpetmolluskradiocarbon
Type
Conference Paper
Information
Radiocarbon , Volume 61 , Issue 6: Radiocarbon 2018 Conference Proceedings Trondheim, Norway, June 17–22, 2018 Part 2 of 2 , December 2019 , pp. 1913 - 1922
Copyright
© 2019 by the Arizona Board of Regents on behalf of the University of Arizona 

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Footnotes

Selected Papers from the 23rd International Radiocarbon Conference, Trondheim, Norway, 17–22 June, 2018

References

REFERENCES

Alvarez, M, Godino, IB, Balbo, A, Madella, M. 2011. Shell middens as archives of past environments, human dispersal and specialized resource management. Quaternary International 239:1–7.CrossRefGoogle Scholar
Ascough, PL, Cook, GT, Dugmore, AJ, Scott, EM, Freeman, SPHT. 2005. Influence of mollusk species on marine ΔR determinations. Radiocarbon 47(3):433–440.CrossRefGoogle Scholar
Dye, T. 1994. Apparent ages of marine shells: implications for archaeological dating in Hawai’i. Radiocarbon 36(1):51–57.CrossRefGoogle Scholar
Dettman, DL, Reische, AK, Lohmann, KC. 1999. Controls on the stable isotope composition of seasonal growth bands in aragonite freshwater bivalves. Geochimica et Cosmochimica Acta 63:1049–1057.CrossRefGoogle Scholar
Geological Survey of Northern Ireland. 2018. GSNI GeoIndex (online), Bedrock Geology 250k http://mapapps2.bgs.ac.uk/GSNI_Geoindex/home.html (accessed 10/01/2018).Google Scholar
Gutiérrez-Zugasti, I, Andersen, SH, Araújo, AC, Dupont, C, Milner, N, Monge-Soares, AM. 2011. Shell midden research in Atlantic Europe: State of the art, research problems and perspectives for the future. Quaternary International 239(1–2):70–85.CrossRefGoogle Scholar
Gillikin, DP, Lorrain, A, Bouillon, S, Willenz, P, Dehairs, F. 2006. Stable carbon isotopic composition of Mytilus edulis shells: relation to metabolism, salinity, δ13CDIC and phytoplankton. Organic Geochemistry 37:1371–1382.CrossRefGoogle Scholar
Hartnoll, RG, Wright, JR. 1977. Foraging movements and homing in the limpet Patella vulgata L. Animal Behaviour 25(4):806–810.CrossRefGoogle Scholar
Hawkins, SJ, Watson, DC, Hill, AS, Harding, SP, Kyriakides, MA, Hutchinson, S, Norton, TA. 1989. A comparison of feeding mechanisms in microphagous, herbivorous, intertidal, prosobranchs in relation to resource partitioning. Journal of Molluscan Studies 55:151–165.CrossRefGoogle Scholar
Hill, AE, Brown, J, Fernand, L. 1997. The summer gyre in the western Irish Sea: Shelf sea paradigms and management implications. Estuarine, Coastal and Shelf Science 44(A):83–95.CrossRefGoogle Scholar
Lindberg, DL, Dwyer, KR. 1983. The topography, formation and role of the home depression of Collisella scabra (Gould) (Gastropoda: Acmaeidae). The Veliger 25:229–234.Google Scholar
McConnaughey, TA, Gillikin, DP. 2008. Carbon isotopes in mollusc shell carbonates. Geo-Marine Letters 28:287–299.CrossRefGoogle Scholar
Meiklejohn, C, Woodman, PC. 2012. Radiocarbon dating of Mesolithic human remains in Ireland. Mesolithic Miscellany 22(1):22–41.Google Scholar
Milner, N.. In: Conneller, C, Warren, G 2006. Subsistence. In: , editors. Mesolithic Britain and Ireland: New approaches. p. 61–82.Google Scholar
Mook, WG, van der Plicht, J. 1999. Reporting 14C activities and concentrations. Radiocarbon 41: 227–239.CrossRefGoogle Scholar
Muir, GKP, Tierney, KM, Cook, GT, MacKinnon, G, Howe, JA, Heymans, JJ, Hughes, DJ, Xu, S. 2016. Ecosystem uptake and transfer of Sellafield-derived radiocarbon (14C) Part 1. The Irish Sea. Marine Pollution Bulletin 114:792–804.CrossRefGoogle ScholarPubMed
Murray, EV.. In: Murphy, EM, Whitehouse, NJ 2007. Molluscs and middens: The archaeology of ‘Ireland’s Savage Race’. In: , editors. Environmental archaeology in Ireland. Oxford: Oxbow Books. p. 119–135.Google Scholar
Nuclear Decommissioning Authority. 2007. Monitoring our Environment, Discharges and Environmental Monitoring Annual Report 2007. Sellafield Ltd.Google Scholar
Nuclear Decommissioning Authority. 2017. Monitoring our Environment, Discharges and Environmental Monitoring Annual Report 2017. Sellafield Ltd.Google Scholar
Pingree, RD, Griffiths, DK. 1980. Currents driven by a steady uniform wind stress on the shelf seas around the British Isles. Oceanologica Acta 3(2):227–236 Google Scholar
Rao, MB. 1975. Some observations on feeding, anatomy, histology of the digestive tract and enzymes in the limpet Cellana radiata (Born) (Gastropoda: Prosobranchia). Proceedings of the Malacological Society of London 41:309–320.Google Scholar
Reimer, PJ, Brown, TA, Reimer, RW. 2004. Discussion: Reporting and calibration of post-bomb 14C data. Radiocarbon 46(3):1299–1304.Google Scholar
Stuiver, M, Polach, HA. 1977. Reporting of 14C data. Radiocarbon 19(3):355–363.CrossRefGoogle Scholar
Tanaka, N, Monaghan, MC, Rye, DM. 1986. Contribution of metabolic carbon to mollusc and barnacle shell carbonate. Nature 320:520–523.CrossRefGoogle Scholar
Vogel, J S, Southon, J R, Nelson, DE. 1987. Catalyst and binder effects in the use of filamentous graphite for AMS. Nuclear Instruments and Methods in Physics Research B 29:50–56.CrossRefGoogle Scholar
Yonge, CM. 1925. The hydrogen ion concentration in the gut of certain lamellibranchs and gastropods. Journal of the Marine Biological Association of the United Kingdom 13(4): 938–952.CrossRefGoogle Scholar