Modelling Lake Mývatn's freshwater reservoir effect: Utilisation of the statistical program FRUITS to assist in the re-interpretation of radiocarbon dates from a cemetery at Hofstaðir, north-east Iceland

Sayle, Kerry L.; Hamilton, Derek; Gestsdóttir, Hildur; Cook, Gordon

doi:10.1016/j.quageo.2016.07.001

Cited by 20 publications

(23 citation statements)

References 41 publications

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“…The accuracy and reliability of FRUITS has been demonstrated in several past studies (Fernandes et al 2014(Fernandes et al , 2015Sayle et al 2016), however, the application of modeling parameters has always been at the user's discretion. Δ 13 C muscle protein-bone collagen and Δ 15 N muscle protein-bone collagen offset values used here have been specifically calculated from tissue fractions of animals of the same species as those analyzed in the isotope faunal baseline.…”

Section: Discussionmentioning

confidence: 99%

Using Stable Isotopes and a Bayesian Mixing Model (FRUITS) to Investigate Diet at the Early Neolithic Site of Carding Mill Bay, Scotland

et al. 2017

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ABSTRACT. We present δ 13 C, δ 15 N, and δ 34 S measurements on archaeological human and animal bone collagen samples from a shell midden dating to the Neolithic ca. 4000-3500 cal BC, together with measurements on modern fish and shellfish. These data were used in conjunction with the Bayesian mixing model, Food Reconstruction Using Isotopic Transferred Signals (FRUITS), to reconstruct human diet at the site. We demonstrate the importance of using a geographically appropriate faunal baseline in stable isotope paleodietary studies, and suggest that Neolithic individuals at this site consumed up to ca. 21% of dietary protein from marine resources, despite stable isotope ratios that imply a wholly terrestrial diet. This marine resource consumption does not significantly shift the radiocarbon ( 14 C) dates of these individuals, so although we must consider the use of marine resources at the site, the chronology that has previously been established is secure. The δ 13 C and δ 15N measurements from the archaeological herbivore bone collagen indicate that it is unlikely they ate plants enriched with fertilisers such as manure or seaweed. The δ 34 S values reveal a sea-spray effect; therefore, in this instance, δ 34 S cannot be used as a dietary indicator but can be used to demonstrate the likely locality of the fauna.

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Section: Discussionmentioning

confidence: 99%

Using Stable Isotopes and a Bayesian Mixing Model (FRUITS) to Investigate Diet at the Early Neolithic Site of Carding Mill Bay, Scotland

et al. 2017

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“…Armed with a much more nuanced understanding of the expected stable isotope values from the three broad ecosystems that combine to form the wider food web for the Lake Mývatn area (terrestrial, marine, and freshwater), it was decided to revisit the radiocarbon dating of the cemetery population in an effort to refine the chronology for the chapel site (Sayle et al 2016b). Here, we moved away from the simple linear interpolation methods that only use one or two stable isotopes, and turned to new Bayesian statistical tools for producing models for mixed diets.…”

Section: Figure 3 Aerial View Of the Hofstaðir Site (A) Showing Thementioning

confidence: 99%

“…As illustrated in Sayle et al (2016b), the freshwater offset was used to first correct the uncalibrated radiocarbon ages of the 46 humans that were presented in the W. Derek Hamilton and Kerry L. Sayle previous research. Here, we have reproduced the results from the nine individuals from the earliest research, with their percentage freshwater diet (%F) and FRE-corrected 14 C age given in Table 1.…”

Section: Figure 3 Aerial View Of the Hofstaðir Site (A) Showing Thementioning

confidence: 99%

“…Model 2, from Sayle et al (2016b), estimated that burial in the cemetery began in cal AD 1015-1210, lasted for 1-230 years, and ended in cal AD 1125-1300 (95% probability; Figure 5). Another piece of chronological information was available from the cemetery, the tephrochronological dating that indicated the cemetery activity must post-date the V-933 and pre-date the H-1300 tephras.…”

Section: Figure 3 Aerial View Of the Hofstaðir Site (A) Showing Thementioning

confidence: 99%

“…This paper reviews the results of a long-term research project that ultimately used light stable isotope analyses and Bayesian mixing models to better model the chronology for a presumed Viking Age cemetery at Hofstaðir, near Lake Mývatn in north-east Iceland (Sayle et al 2013(Sayle et al , 2014(Sayle et al , 2016a(Sayle et al , 2016b. Each step of the project was informed by the previous results and the new questions that were often raised.…”

Section: Introductionmentioning

confidence: 99%

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Stable Isotopes, Chronology, and Bayesian Models for the Viking Archaeology of North-East Iceland

Hamilton

Sayle

2017

The Journal of Island and Coastal Archaeology

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Continuation of fishing subsistence in the Ukrainian Neolithic: diet isotope studies at Yasinovatka, Dnieper Rapids

Budd

Potekhina

Lillie

2020

Archaeol Anthropol Sci

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Yasinovatka is one of around 30 prehistoric cemetery sites of fisher-hunter-foragers located along the Dnieper River in southern Ukraine. Dating to c. 5540-4930 cal BC, the skeletal remains at Yasinovatka suggest that around sixty-eight individuals were interred at the cemetery, during three broad phases of interment: A-type burials (c. 5540-4930 cal BC), Ƃ1 pit burials (c. 5550-4750 cal BC), and Ƃ2 pit burials (c. 4980-4460 cal BC). The burials are characterized, in part, by the inclusion of a number of Mariupol-type plates of boar tusk, in addition to deer tooth pendants, Unio shells, knife-like flint blades, Cyprinidae teeth, sherds of Neolithic pottery, and significant deposits of ochre in the later burial pits. Here we analyse δ 13 C and δ 15 N values for 50 human bone collagen samples from the site. The majority of the isotope results show a fisher-hunter-forager population reliant predominantly on freshwater aquatic proteins, which is in keeping with previous dietary isotope studies in the area. Two individuals however have δ 15 N values that are clearly depleted when compared with the main population; these reflect dietary protein intakes based on plant and animal terrestrial resources rather than the predominant focus on aquatic resources. Notably, the δ 13 C values of these anomalous individuals are not enriched compared with the fauna samples analysed from the region; this supports the possibility that they were incomers to the area, potentially from a nearby agrarian population.

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Modelling Lake Mývatn's freshwater reservoir effect: Utilisation of the statistical program FRUITS to assist in the re-interpretation of radiocarbon dates from a cemetery at Hofstaðir, north-east Iceland

Abstract: however this study indicates that the cemetery was in use between the 11 th and 13 th centuries.

Cited by 20 publications

References 41 publications

Using Stable Isotopes and a Bayesian Mixing Model (FRUITS) to Investigate Diet at the Early Neolithic Site of Carding Mill Bay, Scotland

Using Stable Isotopes and a Bayesian Mixing Model (FRUITS) to Investigate Diet at the Early Neolithic Site of Carding Mill Bay, Scotland

Stable Isotopes, Chronology, and Bayesian Models for the Viking Archaeology of North-East Iceland

Continuation of fishing subsistence in the Ukrainian Neolithic: diet isotope studies at Yasinovatka, Dnieper Rapids

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