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Paired Radiocarbon Dating on Human Samples and Camelid Fibers and Textiles from Northern Chile: The Case of Pica 8 (Tarapacá)

  • Francisca Santana-Sagredo (a1), Rick Schulting (a1), Julia Lee-Thorp (a1), Carolina Agüero (a2), Mauricio Uribe (a3) and Cecilia Lemp (a3)...
Abstract
Abstract

Pica 8 is a Late Intermediate Period (AD 900–1450) cemetery located in the Atacama Desert. Burials at the site present unexpectedly high variability in δ13C (–8‰ to –16‰) and δ15N (10‰ to 24‰) values in their skeletal tissues, implying highly diverse diets. There are two possible explanations for this variability: the first is diachronic change in diet while the second involves synchronic sociocultural distinctions. To distinguish between them a radiocarbon (14C) dating program (n=23) was initiated. The presumed importance of marine foods adds the complication of a marine reservoir effect. To address this problem, paired 14C dates were obtained on human bone and camelid textiles from nine graves. The results fall into two groups, one showing an average offset of 117±9 14C yr, and the other no statistically significant offsets. We conclude that the contribution of marine foods to bone collagen at Pica 8 was less than previously supposed. Other factors must be invoked to account for the unusually high human δ15N values at the site. Manuring crops with sea-bird guano emerges as a probable explanation. No relationship with chronology is seen implying the presence of considerable diversity in diets and hence lifeways within the Pica 8 community.

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*Corresponding author. Email: francisca.santanasagredo@rlaha.ox.ac.uk.
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PL Ascough , GT Cook , MJ Church , E Dunbar , A Einarsson , TH McGovern , AJ Dugmore , S Perdikaris , H Hastie , A Frioriksson , H Gestsdottir . 2010. Temporal and spatial variations in freshwater 14C reservoir effects: Lake Myvatn, Northern Iceland. Radiocarbon 52(3):10981112.

PL Ascough , GT Cook , AJ Dugmore , J Barber , E Higney , EM Scott . 2004. Holocene variations in the Scottish marine radiocarbon reservoir effect. Radiocarbon 46(2):611620.

F Brock , T Higham , P Ditchfield , C Bronk Ramsey . 2010. Current pretreatment methods for AMS radiocarbon dating at the Oxford Radiocarbon Accelerator Unit (ORAU). Radiocarbon 52(1):103112.

C Bronk Ramsey , S Lee . 2013. Recent and planned developments of the program OxCal. Radiocarbon 55(2):720730.

M Carré , D Jackson , A Maldonado , B Chase , J Sachs . 2016. Variability of 14C reservoir age and air-sea flux of CO2 in the Peru-Chile upwelling region during the past 12.000 years. Quaternary Research 85(1):8793.

B Cases , C Rees , G Pimentel , R Labarca , D Leiva . 2008. Sugerencias desde un contexto funerario en un “espacio vacío” del Desierto de Atacama. Boletín del Museo Chileno de Arte Precolombino 13:5170.

G Dewar , PJ Reimer , J Sealy , S Woodborne . 2012. Late-Holocene marine radiocarbon reservoir correction (ΔR) for the west coast of South Africa. The Holocene 22(12):14811489.

F Díaz , M Frugone , R Gutiérrez , C Latorre . 2016. Nitrogen cycling in an extreme hyperarid environment inferred from δ15N analyses of plants, soils, and herbivore diet. Nature Scientific Reports 6:22226.

R Evans , J Ehleringer . 1994. Plant δ15N values along a fog gradient in the Atacama Desert, Chile. Journal of Arid Environments 28:189193.

R Fernandes , C Rinne , MJ Nadeau , P Grootes . 2014. Towards the use of radiocarbon as a dietary proxy: establishing a first wide-ranging radiocarbon reservoir effects baseline for Germany. Environmental Archaeology 21:285294.

M Fontugne , M Carre , I Bentaleb , M Julien , D Lavallee . 2004. Radiocarbon reservoir age variations in the south Peruvian upwelling during the Holocene. Radiocarbon 46(2):531537.

AG Hogg , PG Blackwell , M Niu , CE Buck , TP Guilderson , TJ Heaton , JG Palmer , PJ Reimer , RW Reimer , CSM Turney , SRH Zimmerman . 2013. SHCal13 Southern Hemisphere calibration, 0–50,000 years cal BP. Radiocarbon 55(1):115.

I Hutchinson , TS James , PJ Reimer , BD Bornhold , JJ Clague . 2004. Marine and limnic radiocarbon reservoir corrections for studies of late- and postglacial environments in Georgia Basin and Puget Lowland, British Columbia, Canada and Washington, USA. Quaternary Research 61(2):193203.

L. Ortlieb et al. 2011. Marine radiocarbon reservoir effect along the northern Chile-southern Peru coast (14–24°S) throughout the Holocene. Quaternary Research 75:91103.

BD Owen . 2002. Marine carbon reservoir age estimates for the far south coast of Peru. Radiocarbon 44(3):701708.

A Pacheco , R Retamal . 2017. Avoiding war in Tarapacá (northern Chile) during the Andean Late Intermediate Period (AD 1000-1400). International Journal of Osteoarchaeology 27:3544.

J Parsons , N Psutty . 1975. Sunken fields and Prehispanic subsistence on the Peruvian coast. American Antiquity 40:259282.

TD Price , SH Ambrose , P Bennike , J Heinemeier , N Noe-Nygaard , E Brinch Petersen , P Vang Petersen , M Richards . 2007. New information on the Stone Age graves at Dragsholm, Denmark. Acta Archaeologica 78(2):193219.

F Santana-Sagredo , M Uribe , MJ Herrera , R Retamal , S Flores . 2015b. Dietary practices in ancient populations from northern Chile during the transition to agricultura (Tarapacá region, 1000 BC–AD 900). American Journal of Physcical Anthropology 158:751758.

RJ Schulting , C Bronk Ramsey , OI Goriunova , VI Bazaliiskii , A Weber . 2014. Freshwater reservoir offsets investigated through paired human–faunal 14C dating and stable carbon and nitrogen isotope analysis at Lake Baikal, Siberia. Radiocarbon 56(3):9911008.

M Stuiver , TF Braziunas . 1993. Modeling atmospheric 14C influences and 14C ages of marine samples to 10,000 BC. Radiocarbon 35(1):137189.

P Szpak , JF Millaire , CD White , FJ Longstaffe . 2012a. Influence of seabird guano and camelid dung fertilization on the nitrogen isotopic composition of field-grown maize (Zea mays). Journal of Archeological Science 39:37213740.

P Szpak , FJ Longstaffe , JF Millaire , C White . 2012b. Stable isotope biogeochemistry of seabird guano fertilization: Results from growth chamber studues with maize (Zea mays). Plos one 7:e33741.

P Szpak , FJ Longstaffe , JF Millaire , C White . 2014. Large variation in nitrogen isotopic composition of a fertilized legume. Journal of Archaeological Science 45:7279.

GK Ward , SR Wilson . 1978. Procedures for comparing radiocarbon age determinations: a critique. Archaeometry 20:1931.

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Radiocarbon
  • ISSN: 0033-8222
  • EISSN: 1945-5755
  • URL: /core/journals/radiocarbon
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