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Reservoirs and Radiocarbon: 14C Dating Problems in Mývatnssveit, Northern Iceland

  • Philippa L Ascough (a1), Gordon T Cook (a2), Mike J Church (a3), Andrew J Dugmore (a4), Thomas H McGovern (a5), Elaine Dunbar (a2), árni Einarsson (a6), Adolf Frioriksson (a7) and Hildur Gestsdóttir (a7)...
Abstract

This 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 δR values for the north coast of Iceland, indicating a δR 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 δR 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.

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Corresponding author
Corresponding author. Email: plal@st-andrews.ac.uk
References
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Ambrose, SH, Norr, LB. 1993. Experimental evidence for the relationship of the carbon isotope ratios of whole diet and dietary protein to those of bone collagen and carbonate. In: Lambert, JB, Grupe, G, editors. Prehistoric Human Bone: Archaeology at the Molecular Level. Berlin: Springer-Verlag. p 137.
Andersson, J, Persson, L. 2005. Behavioural and morphological responses to cannibalism in Arctic char (Salvelinus alpinus). Evolutionary Ecology Research 7(5):767–78.
Ármannsson, H, Kristmannsdóttir, H, Ólafsson, M. 2000. Geothermal influence on groundwater in the Lake Mývatn area, north Iceland. In: Proceedings of the World Geothermal Congress 2000. Kyushu-Tohoku, Japan, 28 May–12 June 2000. Reykjavik: International Geothermal Association. p 515–20.
Arnalds, Ó, Thorarinsdóttir, EF, Metusalemsson, S, Jonsson, A, Gretarsson, E, Arnason, A. 1997. Soil Erosion in Iceland. Reykjavík: Icelandic SCS and the Agricultural Research Institute. 121 p.
Arneborg, J, Heinemeier, J, Lynnerup, N, Nielsen, HL, Rud, N, Sveinbjörnsdóttir, ÁE. 1999. Change of diet of the Greenland Vikings determined from stable carbon isotope analysis and 14C dating of their bones. Radiocarbon 41(2):157–68.
Ascough, PL, Cook, GT, Dugmore, AJ, Barber, J, Higney, E, Scott, EM. 2004. Holocene variations in the Scottish marine radiocarbon reservoir effect. Radiocarbon 46(2):611–20.
Ascough, PL, Cook, GT, Dugmore, A. 2005. Methodological approaches to determining the marine radiocarbon reservoir effect. Progress in Physical Geography 29(4):532–47.
Ascough, PL, Cook, GT, Church, MJ, Dugmore, AJ, Arge, SV, McGovern, TH. 2006. Variability in North Atlantic marine radiocarbon reservoir effects at c. AD 1000. The Holocene 16(1):131–6.
Balasse, M, Tresset, A, Dobney, K, Ambrose, SH. 2005. The use of isotope ratios to test for seaweed eating in sheep. Journal of Zoology 266(3):283–91.
Bocherens, H, Fizet, M, Mariotti, A, Lange-Badré, B, Vandermeersch, B, Borel, JP, Bellon, G. 1991. Isotopic bio-geochemistry (13C, 15N) of fossil vertebrate collagen: application to the study of a past food web including Neandertal man. Journal of Human Evolution 20(6):481–92.
Bond, G, Kromer, B, Beer, J, Muscheler, R, Evans, MN, Showers, W, Hoffmann, S, Lotti-Bond, R, Hajdas, I, Bonani, G. 2001. Persistent solar influence on North Atlantic climate during the Holocene. Science 294(5549):2130–6
Bonsall, C, Lennon, R, McSweeney, K, Stewart, C, Harkness, D, Boroneant, V, Payton, R, Bartosiewicz, L, Chapman, JC. 1997. Mesolithic and Early Neolithic in the Iron Gates: a palaeodietary perspective. Journal of European Archaeology 5(1):5092.
Broecker, WS, Olson, EA. 1961. Lamont radiocarbon measurements VIII. Radiocarbon 3:176204.
Broecker, W, Barker, S, Clark, E, Hajdas, I, Bonani, G, Stott, L. 2004. Ventilation of the glacial deep Pacific Ocean. Science 306(5699):1169–72.
Bronk Ramsey, C. 1995. Radiocarbon calibration and analysis of stratigraphy: the OxCal program. Radiocarbon 37(2):425–30.
Bronk Ramsey, C. 2001. Development of the radiocarbon program. Radiocarbon 43(2A):355–63.
Cabana, G, Rasmussen, JB. 1994. Modelling food chain structure and contaminant bioaccumulation using stable nitrogen isotopes. Nature 372(6503):255–7.
Cabana, G, Rasmussen, JB. 1996. Comparison of aquatic food chains using nitrogen isotopes. Proceedings of the National Academy of Sciences USA 93(20):10,8447.
Campin, J-M, Fichefet, T, Duplessy, J-C. 1999. Problems with using radiocarbon to infer ocean ventilation rates for past and present climates. Earth and Planetary Science Letters 165(1):1724.
Church, MJ, Dugmore, AJ, Mairs, KA, Millard, AR, Cook, GT, Sveinbjarnardóttir, G, Ascough, PA, Roucoux, KH. 2007. Charcoal production during the Norse and early Medieval periods in Eyjafjallahreppur, southern Iceland. Radiocarbon , these proceedings.
Cook, GT, Bonsall, C, Hedges, REM, McSweeney, K, Boroneant, V, Pettitt, PB. 2001. A freshwater diet-derived reservoir effect at the Stone Age sites in the Iron Gates Gorge. Radiocarbon 43(2A):453–60.
Culleton, BJ. 2006. Implications of a freshwater radiocarbon reservoir correction for the timing of late Holocene settlement of the Elk Hills, Kern County, California. Journal of Archaeological Science 33(9):1331–9.
DeNiro, MJ. 1985. Postmortem preservation and alteration of in vivo bone collagen isotope ratios in relation to palaeodietary reconstruction. Nature 317(6040):806–9.
Dufour, E, Bocherens, H, Mariotti, A. 1999. Palaeodietary implications of isotopic variability in Eurasian lacustrine fish. Journal of Archaeological Science 26(6):617–27.
Dugmore, AJ, Newton, AJ, Larsen, G, Cook, GT. 2000. Tephrochronology, environmental change and the Norse settlement of Iceland. Environmental Archaeology 5:2134.
Dugmore, AJ, Church, MJ, Buckland, PC, Edwards, KJ, Lawson, I, McGovern, TH, Panagiotakopulu, E, Simpson, IA, Skidmore, P, Sveinbjarnardóttir, G. 2005. The Norse landnám on the North Atlantic islands: an environmental impact assessment. Polar Record 41(1):2137.
Dumond, DE, Griffin, DG. 2002. Measurements of the marine reservoir effect on radiocarbon ages in the eastern Bering Sea. Arctic 55(1):7786.
Edwards, KJ, Buckland, PC, Dugmore, AJ, McGovern, TH, Simpson, IA, Sveinbjarnardóttir, G. 2004. Landscapes circum-Landnám: Viking settlement in the North Atlantic and its human and ecological consequences – a major new research programme. In: Housley, R, Coles, GM, editors. Atlantic Connections and Adaptations: Economies, Environments and Subsistence in Lands Bordering the North Atlantic. Oxford: David Brown Book Company. p 260–71.
Eiríksson, J, Knudsen, KL, Haflidason, H, Heinemeier, J. 2000. Chronology of late Holocene climatic events in the northern North Atlantic based on AMS 14C dates and tephra markers from the volcano Hekla, Iceland. Journal of Quaternary Science 15(6):573–80.
Eiríksson, J, Larsen, G, Knudsen, KL, Heinemeier, J, Símonarson, LA. 2004. Marine reservoir age variability and water mass distribution in the Iceland Sea. Quaternary Science Reviews 23(20–22):2247–68.
Erskine, PD, Bergstrom, DM, Schmidt, S, Stewart, GR, Tweedie, CE, Shaw, JD. 1998. Subantarctic Macquarie Island: a model ecosystem for studying animal-derived nitrogen sources using 15N natural abundance. Oecologia 117(1–2): 187–93.
Fallu, M-A, Pienitz, R, Walker, IR, Overpeck, J. 2004. AMS 14C dating of tundra lake sediments using chironomid head capsules. Journal of Paleolimnology 31(1):1122.
Fischer, A, Heinemeier, J. 2003. Freshwater reservoir effect in 14C dates of food residue on pottery. Radiocarbon 45(3):449–66.
Forman, SL, Polyak, L. 1997. Radiocarbon content of pre-bomb marine mollusks and variations in the 14C reservoir age for coastal areas of the Barents and Kara seas, Russia. Geophysical Research Letters 24(8):885–8.
Geyh, M, Schotterer, U, Grosjean, M. 1998. Temporal changes of the 14C reservoir effect in lakes. Radiocarbon 40(2):921–31.
Grönvold, K, Óskarsson, N, Johnsen, SJ, Clausen, HB, Hammer, CU, Bond, G, Bard, E. 1995. Ash layers from Iceland in the Greenland GRIP ice core correlated with oceanic and land sediments. Earth and Planetary Science Letters 135(1–4):149–55.
Grossman, EL, Ku, T-L. 1986. Oxygen and carbon isotope fractionation in biogenic aragonite: temperature effects. Chemical Geology 59:5974.
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):322.
Hall, BL, Henderson, GM. 2001. Use of uranium-thorium dating to determine past 14C reservoir effects in lakes: examples from Antarctica. Earth and Planetary Science Letters 193(3–4):565–77.
Hughen, KA, Baillie, MGL, Bard, E, Beck, JW, Bertrand, CJH, Blackwell, PG, Buck, CE, Burr, GS, Cutler, KB, Damon, PE, Edwards, RL, Fairbanks, RG, Friedrich, M, Guilderson, TP, Kromer, B, McCormac, G, Manning, S, Bronk Ramsey, C, Reimer, PJ, Reimer, RW, Remmele, S, Southon, JR, Stuiver, M, Talamo, S, Taylor, FW, van der Plicht, J, Weyhenmeyer, CE. 2004. Marine04 marine radiocarbon age calibration, 0–26 cal kyr BP. Radiocarbon 46(3):1059–86.
Jim, S, Ambrose, SH, Evershed, RP. 2004. Stable carbon isotopic evidence for differences in the dietary origin of bone cholesterol, collagen and apatite: implications for their use in palaeodietary reconstruction Geochimica et Cosmochimica Acta 68(1):6172.
Katzenberg, MA, Weber, A. 1999. Stable isotope ecology and palaeodiet in the Lake Baikal region of Siberia. Journal of Archaeological Science 26(6):651–9.
Keith, ML, Anderson, GM, Eichler, R. 1964. Carbon and oxygen isotopic composition of mollusk shells from marine and fresh-water environments. Geochimica et Cosmochimica Acta 28(10–11):1757–86.
Kristmannsdóttir, H, Ármannsson, H. 2004. Groundwater in the Lake Myvatn area, northern Iceland: chemistry, origin and interaction. Aquatic Ecology 38(2):115–28.
Lawson, IT, Gathorne-Hardy, FJ, Church, MJ, Newton, AJ, Edwards, KJ, Dugmore, AJ. 2007. Environmental impacts of the Norse settlement: palaeoenvironmental data from Mývatnssveit, northern Iceland. Boreas 36(1):119.
Levin, I, Hesshaimer, V. 2000. Radiocarbon—a unique tracer of global carbon cycle dynamics. Radiocarbon 42(1):6980.
Longin, R. 1971. New method of collagen extraction for radiocarbon dating. Nature 230(5291):241–2.
Mangerud, J. 1972. Radiocarbon dating of marine shells, including a discussion of apparent ages of Recent shells from Norway. Boreas 1:143–72.
Mann, ME, Bradley, RS, Hughes, MK. 1999. Northern Hemisphere temperatures during the past millennium: inferences, uncertainties, and limitations. Geophysical Research Letters 26(6):759–62.
McGovern, TH, Perdikaris, S, Einarsson, Á, Sidell, J. 2006. Coastal connections, local fishing and sustainable egg harvesting: patterns of Viking Age inland wild resource use in Myvatn district, northern Iceland. Environmental Archaeology 11 (2):187205.
McGovern, TH, Vésteinsson, O, Frioriksson, A, Church, M, Lawson, I, Simpson, IA, Einarsson, Á, Dugmore, A, Cook, G, Perdikaris, S, Edwards, KJ, Thomson, AM, Adderley, WP, Newton, A, Lucas, G, Edvardsson, R, Aldred, O, Dunbar, E. 2007. Landscapes of settlement in northern Iceland: historical ecology of human impact and climate fluctuation on the millennial scale. American Anthropologist 109(1):2751.
McKee, KL, Feller, IC, Popp, M, Wanek, W. 2002. Mangrove isotopic (δ15N and δ13C) fractionation across a nitrogen vs. phosphorus limitation gradient. Ecology 83(4):1065–75.
Minagawa, M, Wada, E. 1984. Stepwise enrichment of 15N along food chains: further evidence and the relation between δ15N and animal age. Geochimica et Cosmochimica Acta 48(5):1135–40.
Olsson, IU. 1980. Content of 14C in marine mammals from northern Europe. Radiocarbon 22(3):662–75.
Raven, JA, Johnston, AM, Kübler, JE, Korb, R, McInroy, SG, Handley, LL, Scrimgeour, CM, Walker, DI, Beardall, J, Vanderklift, M, Fredriksen, S, Dunton, KH. 2002. Mechanistic interpretation of carbon isotope discrimination by marine macroalgae and seagrasses. Functional Plant Biology 29(2–3):355–78.
Reimer, PJ, Reimer, RW. 2001. A marine reservoir correction database and on-line interface. Radiocarbon 43(2A):461–3.
Reimer, PJ, Baillie, MGL, Bard, E, Bayliss, A, Beck, JW, Bertrand, CJH, Blackwell, PG, Buck, CE, Burr, GS, Cutler, KB, Damon, PE, Edwards, RL, Fairbanks, RG, Friedrich, M, Guilderson, TP, Hogg, AG, Hughen, KA, Kromer, B, McCormac, G, Manning, S, Bronk Ramsey, C, Reimer, RW, Remmele, S, Southon, JR, Stuiver, M, Talamo, S, Taylor, FW, van der Plicht, J, Weyhenmeyer, CE. 2004. IntCal04 terrestrial radiocarbon age calibration, 0–26 cal kyr BP. Radiocarbon 46(3):1029–58.
Richards, MP, Hedges, REM. 1999. Stable isotope evidence for similarities in the types of marine foods used by Late Mesolithic humans at sites along the Atlantic coast of Europe. Journal of Archaeological Science 26(6):717–22.
Schoeninger, MJ, DeNiro, MJ. 1984. Nitrogen and carbon isotopic composition of bone collagen from marine and terrestrial animals. Geochimica et Cosmochimica Acta 48(4):625–39.
Slota, PJ Jr, Jull, AJT, Linick, TW, Toolin, LJ. 1987. Preparation of small samples for 14C accelerator targets by catalytic reduction of CO. Radiocarbon 29(2):303–6.
Stuiver, M, Pearson, GW, Braziunas, T. 1986. Radiocarbon age calibration of marine samples back to 9000 cal yr BP. Radiocarbon 28(2B):9801021.
Sveinbjörnsdóttir, ÁE, Heinemeier, J, Arnórsson, S. 1995. Origin of 14C in Icelandic groundwater. Radiocarbon 37(2):551–65.
Sveinbjörnsdóttir, ÁE, Arnórsson, S, Heinemeier, J, Boaretto, E. 2000. 14C ages of groundwater in Iceland. In: Proceedings World Geothermal Congress 2000. Kyushu-Tohoku, Japan, 28 May–10 June 2000. Reykjavik: International Geothermal Association. p 1797–802.
Tozer, WC, Hackell, D, Miers, DB, Silvester, WB. 2005. Extreme isotopic depletion of nitrogen in New Zealand lithophytes and epiphytes; the result of diffusive uptake of atmospheric ammonia? Oecologia 144(4):628–35.
van der Merwe, NJ. 1982. Carbon isotopes, photosynthesis, and archaeology. American Scientist 70:596606.
van der Merwe, NJ. 1989. Natural variation in 13C concentration and its effect on environmental reconstruction using 13C/12C ratios in animal bones. In: Price, TD, editor. The Chemistry of Prehistoric Human Bone. Cambridge: Cambridge University Press. p 105–25.
Vandeputte, K, Moens, L, Dams, R. 1996. Improved sealed-tube combustion of organic samples to CO2 for stable isotope analysis, radiocarbon dating and percent carbon determinations. Analytical Letters 29(15):2761–73.
Voelker, AHL, Sarnthein, M, Grootes, PM, Erlenkeuser, H, Laj, C, Mazaud, A, Nadeau, MJ, Schleicher, M. 1998. Correlation of marine 14C ages from the Nordic Seas with the GISP2 isotope record: implications for 14C calibration beyond 25 ka BP. Radiocarbon 40(1):517–34.
Wang, Y, Wooller, MJ. 2006. The stable isotopic (C and N) composition of modern plants and lichens from northern Iceland: with paleoenvironmental implications. Jökull 56:2737.
Ward, GK, Wilson, SR. 1978. Procedures for comparing and combining radiocarbon age determinations: a critique. Archaeometry 20(1):1931.
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