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    The strontium isotopic composition of Ordovician and

    2005 6 1 ABSTRACT One hundred and fifty six 87Sr/86Sr ratios were measured from Ordovician and Silurian brachiopod shells marine calcite cements and conodonts in order to establish the secular strontium isotope curve for the coeval seawater Preservation of the brachiopod shell material has been evaluated by petro

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  • Strontium isotopes 87Sr/86Sr in terrestrial ecological

    The local water model provides a readily available source of background data for predicting 87Sr/86Sr for biologically relevant materials in places where empirical data are lacking and the availability of increasingly high‐quality modelled Sr data will dramatically expand the accessibility of this geochemical tool to ecological applications Strontium Sr isotope analysis can provide

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  • A bioavailable strontium isoscape for Western ..

    2018 5 30 Strontium isotope ratios 87Sr/86Sr are gaining considerable interest as a geolocation tool and are now widely applied in archaeology ecology and forensic research However their application for provenance requires the development of baseline models predicting surficial 87Sr/86Sr variations isoscapes A variety of empirically based and process based models have been proposed to

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  • Correction Strontium Isotopes and the Reconstruction of

    Correction Strontium Isotopes and the Reconstruction of the Chaco Regional System Evaluating Uncertainty with Bayesian Mixing Models

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    Strontium isotope evidence for Neanderthal and modern

    2021 11 19 had strontium isotope values consistent with the local environment or not 26 27 Under standing the local geology where a strontium isotope study is undertaken is important how ever the strontium values in biological organisms are not directly related to

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  • Strontium in Fossil Bones and the Reconstruction of Food

    Strontium in Fossil Bones and the Reconstruction of Food Chains The strontium content of bone is a function of the strontium content of the ingested food Under favorable conditions of fossilization it can be used for the determination of feeding habits of extinct terrestrial vertebrates PLoS One 13 10 e 31 Oct 2018

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  • plos one strontium isotopes and the reconstruction of the

    Expanding radiogenic strontium isotope baseline PLOS Feb 24 2020 Strontium isotopes in studies of paleomobility Radiogenic strontium isotopes are one of several isotopic systems that have been used to characterize paleomobility 19–23 .87 Sr/ 86 Sr values reflect regional geologic variability .Biologically available strontium present in soil and groundwater is incorporated into

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  • Altmetric Strontium Isotopes and the Reconstruction of

    Strontium Isotopes and the Reconstruction of the Chaco Regional System Evaluating Uncertainty with Bayesian Mixing Models Overview of attention for article published in PLOS ONE May 2014 Altmetric Badge Mentioned by twitter 1 tweeter facebook 1 Facebook page Citations dimensions citation 18 Dimensions Readers on mendeley

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  • Strontium isotope ratios of human hair record intra city

    2018 2 20 Strontium isotope ratios of water Sixty one tap water samples from six collection sites were analyzed for 87 Sr/ 86 Sr they ranged from 0.70906 to 0.71399 Table 1 Tap water samples were

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  • Strontium isotopic geochemistry of the Devils Lake

    A series of water samples precipitation surface water and ground water from the Devils Lake drainage basin in central North Dakota have been analyzed for their δ18O and δD and 87Sr/86Sr The δ18O and δD of snow and most ground water samples fall near the meteoric water line with the ground water being isotopically heavier than the snow indicating that a portion of the recharge must

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  • Flows of people in villages and large centres in ..

    2019 1 9 Except for one case t 20 all the flat graves south of the tumuli show very similar strontium and oxygen isotope ratios along with some of the tumulus burials Also the two burials including bronze daggers are characterized by δ 18 O values lower than 24.01‰ TT 3 and 6 .

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  • Strontium isotopes and the reconstruction of the Chaco

    2014 5 22 Strontium isotope sourcing has become a common and useful method for assigning sources to archaeological artifacts.In Chaco Canyon an Ancestral Pueblo regional center in New Mexico previous studiesusing these methods have suggested that significant portion of maize and wood originate in the Chuska Mountains region 75 km to the West corrected .

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  • Biogeochemical reconstructions of life histories as a

    2017 6 1 Specifically radiogenic strontium isotopes reveal evidence of movement by one individual to an outside region Specifically one adult buried at Rinconada Alta RINC G9698.II 0567 ENT116 exhibits a 87 Sr/ 86 Sr value 0.71314 in her third permanent molar which lies far outside the local biologically available range 87 Sr/ 86 Sr = 0

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  • Correction Strontium Isotopes and the Reconstruction of

    Correction Strontium Isotopes and the Reconstruction of the Chaco Regional System Evaluating Uncertainty with Bayesian Mixing Models PLOS ONE Dec 2019 The PLOS ONE Staff

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  • Strontium isotopes and the long term residency of

    2015 12 23 Strontium isotopes and teleosaurid provenance The ingested strontium is incorporated into the crystal lattice of bioapatite during mineralization of teeth and bones Reynard and Balter 2014 and therefore its isotopic composition reflects that of the environment in which the animal lived as derived from food and drinking water e.g

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  • What are the four isotopes of strontium

    2010 5 27 Isotopes Strontium What are the four isotopes of strontium Wiki User 2010 05 27 13 00 34 Study now See Answer Best Answer Copy In

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  • Strontium isotope analysis of Yangtze alligator remains

    2017 12 28 Strontium has three stable non radiogenic isotopes 84 Sr 86 Sr and 88 Sr and one radiogenic isotope 87 Sr which is produced by the decay of radioactive 87 Rb Faure 1986 The ratio of 87 Sr to a non radiogenic isotope conventionally 86 Sr due to their similar relative abundance varies geographically and the 87 Sr/ 86 Sr ratio in

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  • Understanding Final Neolithic ..

    2018 12 19 We present the first comprehensive multi isotopic data on human and animal remains from the Final Neolithic Corded Ware culture ca 2900–2300 cal BC in south eastern Poland The study focused on communities of two settlement areas located in the Małopolska Upland and in the Subcarpathian region Carbon and nitrogen isotopes of bone collagen were investigated to obtain

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  • Stable Isotopes

    2021 8 17 PLOS ONE Stable isotope C N O and H study of a comprehensive set of feathers from two Setophaga citrina January 14 2021 Samiksha Deme Laurence Y Yeung Tao Sun Cin Ty A Lee Oxygen hydrogen carbon and nitrogen stable isotopes were measured on a comprehensive sampling of feathers from two spring Hooded Image credit.

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  • Strontium isotopes and human mobility in prehistoric

    The principles behind the strontium isotopic system are an important tool for archaeologists tracing human migration and patterns of movement in prehistory However there are several scientific challenges of analytical nature as well as those which relate to unknown parameters inherent to the interpretation of such data One prerequisite is the knowledge of the range of strontium isotopic

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  • Strontium Isotopes and the Reconstruction of the Chaco

    The strontium profiles of many geochemical sources in the region overlap making it difficult to definitively identify any one particular geochemical source for the canyon s pre historic maize Bayesian mixing models support the argument that some spruce and fir wood originated in the San Mateo Mountains but that this cannot explain all 87Sr

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  • Marian Hamilton Assistant Professor Anthropology

    Strontium isotopes and the reconstruction of the Chaco regional system evaluating uncertainty with Bayesian mixing models PLoS ONE Download Vita Contact Us 970 351 2707 Candelaria 2200 Campus Box 90 Greeley CO 80639 Contact UNC 970 351 1890 501 20th St Greeley CO 80639

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  • Isotope analyses to explore diet and ..

    2017 5 4 The Islamic necropolis discovered in Tauste Zaragoza Spain is the only evidence that a large Muslim community lived in the area between the 8th and 10th centuries A multi isotope approach has been used to investigate the mobility and diet of this medieval Muslim population living in a shifting frontier region Thirty one individuals were analyzed to determine δ15N δ13C δ18O and 87Sr

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  • PDF The IRHUM Isotopic Reconstruction of Human

    Abstract Strontium isotope ratios 87Sr / 86Sr are a key geochemical tracer used in a wide range of fields including archaeology ecology food and forensic sciences These applications are based on the principle that the Sr isotopic ratios of natural materials reflect the sources of strontium available during their formation A major constraint for current studies is the lack of robust

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  • Strontium and stable isotope evidence of human mobility

    2019 5 13 In situ laser ablation 87 Sr/ 86 Sr ratios of 61 enamel micro samples from 14 human teeth vary between 0.70738 and 0.70952 Considering the average value of

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  • A bioavailable strontium isoscape for Western Europe A

    Strontium isotope ratios 87Sr/86Sr are gaining considerable interest as a geolocation tool and are now widely applied in archaeology ecology and forensic research However their application for provenance requires the development of baseline models predicting surficial 87Sr/86Sr variations is

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