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Holocene Variations in the Scottish Marine Radiocarbon Reservoir Effect

Published online by Cambridge University Press:  18 July 2016

Philippa L Ascough ,
Gordon T Cook ,
Andrew J Dugmore ,
John Barber ,
Elaine Higney  and
E Marian Scott
Philippa L Ascough*
Affiliation:
Institute of Geography, University of Edinburgh, Edinburgh EH8 9XP, United Kingdom Scottish Universities Environmental Research Centre, Scottish Enterprise Technology Park, Rankine Avenue, East Kilbride, Glasgow G75 OQF, United Kingdom
Gordon T Cook
Affiliation:
Scottish Universities Environmental Research Centre, Scottish Enterprise Technology Park, Rankine Avenue, East Kilbride, Glasgow G75 OQF, United Kingdom
Andrew J Dugmore
Affiliation:
Institute of Geography, University of Edinburgh, Edinburgh EH8 9XP, United Kingdom
John Barber
Affiliation:
AOC Archaeology Group, Edgefield Road, Loanhead EH20 9SY, United Kingdom
Elaine Higney
Affiliation:
Scottish Universities Environmental Research Centre, Scottish Enterprise Technology Park, Rankine Avenue, East Kilbride, Glasgow G75 OQF, United Kingdom
E Marian Scott
Affiliation:
Department of Statistics, University of Glasgow, Glasgow G12 8QQ, United Kingdom
*
Corresponding author: Email: [email protected].
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Abstract

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We assessed the evidence for variations in the marine radiocarbon reservoir effect (MRE) at coastal, archaeological Iron Age sites in north and west Scotland by comparing AMS measurements of paired marine and terrestrial materials (4 pairs per context). ΔR values were calculated from measurements on material from 3 sites using 6 sets of samples, all of which were deposited around 2000 BP. The weighted mean of the ΔR determinations was −79 ± 17 14C yr, which indicates a consistent, reduced offset between atmospheric and surface ocean 14C specific activity for these sites during this period, relative to the present day (ΔR = ∼0 14C yr). We discuss the significance of this revised ΔR correction by using the example of wheelhouse chronologies at Hornish Point and their development in relation to brochs. In addition, we assess the importance of using the concepts of MRE correction and ΔR variations when constructing chronologies using 14C measurements made on materials that contain marine-derived carbon.

Type
Part II
Information
Radiocarbon , Volume 46 , Issue 2: Proceedings of the 18th International Radiocarbon Conference (Part 2 of 2), Conference Editors: Nancy Beavan Athfield, Rodger J Sparks , 2004 , pp. 611 - 620
Copyright
Copyright © The Arizona Board of Regents on behalf of the University of Arizona 

References

Adkins, JF, Cheng, H, Boyle, EA, Druffel, ERM, Lawrence Edwards, R. 1998. Deep sea coral evidence for rapid change in ventilation of the deep North Atlantic 15,400 years ago. Science 280:725–8.CrossRefGoogle Scholar
Armit, I. 2003. Towers in the North; The Brochs of Scotland. Gloucestershire: Tempus Publishing.Google Scholar
Armit, I, Ralston, IBM. 2003. The Iron Age. In: Edwards, KJ, Ralston, IBM. Scotland After the Ice Age: Environment, Archaeology and History 8000 BC–AD 1000. Edinburgh: Polygon. 184 p.Google Scholar
Austin, WEN, Bard, E, Hunt, JB, Kroon, D, Peacock, JD. 1995. The 14C age of the Icelandic Vedde ash; implications for younger Dryas marine reservoir age corrections. Radiocarbon 37(1):53–62.CrossRefGoogle Scholar
Barber, DC, Dyke, A, Hillaire-Marcel, C, Jennings, AE, Andrews, JT, Kerwin, MW, Bilodeau, G, McNeely, R, Southon, J, Morehead, MD, Gagnon, J-M. 1999. Forcing of the cold event of 8,200 years ago by catastrophic draining of Laurentide lakes. Nature 400: 344–8.CrossRefGoogle Scholar
Barber, J. 2003. Bronze Age farms and Iron Age farm mounds of the Outer Hebrides. Scottish Archaeological Internet Reports (SAIR) 3, The Society of Antiquaries of Scotland. URL: http://www.sair.org.uk/sair3/index.htm. Last updated 13 May 2003. Accessed 6 October 2003.Google Scholar
Bianchi, GG, McCave, IN. 1999. Holocene periodicity in North Atlantic climate and deep ocean flow south of Iceland. Nature 397:515–7.CrossRefGoogle Scholar
Bond, G, Showers, W, Cheseby, M, Lotti, R, Almasi, P, de-Menocal, P, Priore, P, Cullen, H, Hajdas, I, Bonani, G. 1997. A pervasive millennial-scale cycle in North Atlantic Holocene and Glacial climates. Science 278: 1257–66.CrossRefGoogle Scholar
Bondevik, S, Mangerud, J, Gulliksen, S. 2001. The marine 14C age of the Vedde ash bed along the west coast of Norway. Journal of Quaternary Science 16(1):3–7.3.0.CO;2-G>CrossRefGoogle Scholar
Broecker, WS, Peng, TH, Ostlund, G, Stuiver, M. (1985). The distribution of bomb radiocarbon in the ocean. Journal of Geophysical Research 90:6953–70.CrossRefGoogle Scholar
Dutta, K, Bhushan, R, Somayajulu, BLK. 2001 ΔR correction values for the Northern Indian Ocean. Radiocarbon 43(2A):483–8.CrossRefGoogle Scholar
Fojut, N. 1981. Is Mousa a broch? Proceedings of the Society of Antiquaries of Scotland 111:220–8Google Scholar
Goodfriend, GA, Flessa, KW. 1997. Radiocarbon reservoir ages in the Gulf of California: roles of upwelling and flow from the Colorado river. Radiocarbon 39(2): 139–48.CrossRefGoogle Scholar
Gordon, JE, Harkness, DD. 1992. Magnitude and geographic variation of the radiocarbon content in Antarctic marine life: implications for reservoir correction in radiocarbon dating. Quaternary Science Reviews 11: 697–708.CrossRefGoogle Scholar
Haflidason, H, Eiriksson, J, Van Kreveld, S. 2000. The tephrochronology of Iceland and the North Atlantic region during the middle and Late Quaternary: a review. Journal of Quaternary Science 15(1):3–22.3.0.CO;2-W>CrossRefGoogle Scholar
Levin, I, Münnich, KO, Weiss, W. 1980. The effect of anthropogenic CO2 and 14C sources on the distribution of 14C in the atmosphere. Radiocarbon 22(2):379–91.CrossRefGoogle Scholar
Liss, PS, Merlivat, L. 1986. Air-sea gas exchange rates: introduction and synthesis. In: Buat-Menard, P, editor. The Role of Air-Sea Exchange in Geochemical Cycling. Dordrecht: D Reidel Publishing Co. p 113–27.Google Scholar
Mangerud, J, Gulliksen, S. 1975. Apparent radiocarbon ages of recent marine shells from Norway, Spitsbergen and Arctic Canada. Quaternary Review 5:263–73.Google Scholar
Reimer, PJ, McCormac, FG, Moore, J, McCormick, F, Murray, EV. 2002. Marine radiocarbon reservoir corrections for the mid- to late Holocene in the eastern subpolar North Atlantic. The Holocene 12(2):129–35.CrossRefGoogle Scholar
Siani, G, Paterne, M, Michel, E, Sulpizio, R, Sbrana, A, Arnold, M, Haddad, G. 2001. Mediterranean sea surface radiocarbon reservoir age changes since the last glacial maximum. Science 294:1917–20.CrossRefGoogle ScholarPubMed
Sigman, DM, Boyle, EA. 2000. Glacial/interglacial variations in atmospheric carbon dioxide. Nature 407:859–69CrossRefGoogle ScholarPubMed
Silar, J. 1980. Radiocarbon activity measurements of oolitic sediments from the Persian Gulf. Radiocarbon 22(3):655–61.CrossRefGoogle Scholar
Stocker, TF, Wright, DG. 1996. Rapid changes in ocean circulation and atmospheric radiocarbon. Paleoceanography 11:773–96.CrossRefGoogle Scholar
Stuiver, M, Pearson, GW, Braziunas, T. 1986. Radiocarbon age calibration of marine samples back to 9000 cal yr BP. Radiocarbon 28(2B):980–1021.CrossRefGoogle Scholar
Stuiver, M, Braziunas, TF. 1993. Modelling atmospheric 14C influences and 14C ages of marine samples to 10,000 BC. Radiocarbon 35(1):137–89.CrossRefGoogle Scholar