Academic literature on the topic 'STABLE CARBON ISOTOPE'

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Journal articles on the topic "STABLE CARBON ISOTOPE"

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Treydte, Kerstin, Jan Esper, and Holger Gärtner. "Stabile Isotope in der Dendroklimatologie | Stable isotopes and dendroclimatology." Schweizerische Zeitschrift fur Forstwesen 155, no. 6 (June 1, 2004): 222–32. http://dx.doi.org/10.3188/szf.2004.0222.

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This paper expounds the basics of isotope fixation in tree rings and relevant field and laboratory procedures. Examples from high mountain regions show both the potential and limits of employing these methods in dendroclimatological studies. Carbon isotopes yield seasonally resolved information on temperature,precipitation and relative humidity, whilst oxygen isotopes provide information on the isotope values of the source water,and thus, on precipitation. Inter-annual and decadal variations, in particular, reflect a strong common climatic signal that extends across a wide range of site ecologies. However, low frequency trends are masked by a non-climatic, human induced long-term trend, especially where carbon isotopes are concerned. At present,detrending methods are of a provisional nature and set a limit to stable isotopes for paleoclimatic questions. Highly resolved plant physiological and biochemical investigations should provide more insight into these unsolved problems.
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Sare, David T. J., John S. Millar, and Frederick J. Longstaffe. "Tracing dietary protein in red-backed voles (Clethrionomys gapperi) using stable isotopes of nitrogen and carbon." Canadian Journal of Zoology 83, no. 5 (May 1, 2005): 717–25. http://dx.doi.org/10.1139/z05-064.

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We examined the stable isotopes of nitrogen and carbon in a small mammal, the red-backed vole (Clethroinomys gapperi (Vigors, 1830)), to determine if isotope signatures reflect diet composition. Nitrogen- and carbon-isotope ratios in tissues from voles maintained on different protein levels in the laboratory were compared with wild-trapped voles. The isotopic fractionation of dietary nitrogen and carbon was also examined as food was digested in the stomach, incorporated into bone collagen, bioapatite, and hair, and excreted as feces. Nitrogen and carbon isotopes were fractionated differently depending on the isotopic composition and protein content of the diet. δ15N and δ13C values appear to be influenced by factors in addition to diet, such as macronutrients metabolized for respiration, metabolic rate, and periods of protein shortage.
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Swart, Peter K., and Jim J. Leder. "The utility of stable isotopic signatures in coral skeletons." Paleontological Society Papers 1 (October 1996): 249–91. http://dx.doi.org/10.1017/s1089332600000127.

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There is a fundamental ecologic differentiation between zooxanthellate and non-zooxanthellate corals. This paper reviews factors which govern the stable carbon and oxygen isotopic composition of these groups of corals. Although the stable carbon and oxygen isotope compositions of coral skeletons are strongly influenced by environmental and physiological factors, the precise mechanisms remain a matter of debate. In particular the oxygen isotopic composition is known to be governed by the temperature and the oxygen isotopic composition of the water and perhaps also by kinetic factors. In contrast the carbon isotopic composition is controlled by a combination of photosynthesis, respiration, autotrophy, heterotrophy, and the isotopic composition of dissolved inorganic carbon. Using a combination of carbon and oxygen isotopes it is possible to distinguish zooxanthellate from non-zooxanthellate corals.
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Krüger, J. P., J. Leifeld, and C. Alewell. "Degradation changes stable carbon isotope depth profiles in palsa peatlands." Biogeosciences 11, no. 12 (June 24, 2014): 3369–80. http://dx.doi.org/10.5194/bg-11-3369-2014.

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Abstract. Palsa peatlands are a significant carbon pool in the global carbon cycle and are projected to change by global warming due to accelerated permafrost thaw. Our aim was to use stable carbon isotopes as indicators of palsa degradation. Depth profiles of stable carbon isotopes generally reflect organic matter dynamics in soils with an increase of δ13C values during aerobic decomposition and stable or decreasing δ13C values with depth during anaerobic decomposition. Stable carbon isotope depth profiles of undisturbed and degraded sites of hummocks as well as hollows at three palsa peatlands in northern Sweden were used to investigate the degradation processes. The depth patterns of stable isotopes clearly differ between intact and degraded hummocks at all sites. Erosion and cryoturbation at the degraded sites significantly changes the stable carbon isotope depth profiles. At the intact hummocks the uplifting of peat material by permafrost is indicated by a turning in the δ13C depth trend, and this assessment is supported by a change in the C / N ratios. For hollows isotope patterns were less clear, but some hollows and degraded hollows in the palsa peatlands show differences in their stable carbon isotope depth profiles indicating enhanced degradation rates. We conclude that the degradation of palsa peatlands by accelerated permafrost thawing can be identified with stable carbon isotope depth profiles. At intact hummocks δ13C depth patterns display the uplifting of peat material by a change in peat decomposition processes.
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Krüger, J. P., J. Leifeld, and C. Alewell. "Degradation changes stable carbon isotope depth profiles in palsa peatlands." Biogeosciences Discussions 11, no. 1 (January 22, 2014): 1383–412. http://dx.doi.org/10.5194/bgd-11-1383-2014.

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Abstract. Palsa peatlands are a significant carbon pool in the global carbon cycle and are projected to change by global warming due to accelerated permafrost thaw. Our aim was to use stable carbon isotopes as indicators of palsa degradation. Depth profiles of stable carbon isotopes generally reflect organic matter dynamics in soils with an increase of δ13C values during aerobic decomposition and stable or decreasing δ13C values with depth during anaerobic decomposition. Stable carbon isotope depth profiles of undisturbed and degraded sites of hummocks as well as hollows at three palsa peatlands in northern Sweden were used to investigate the degradation processes. The depth patterns of stable isotopes clearly differ between intact and degraded hummocks at all sites. Erosion and cryoturbation at the degraded sites significantly changes the stable carbon isotope depth profiles. At the intact hummocks the uplifting of peat material by permafrost is indicated by a turning in the δ13C depth trend and this assessment is supported by a change in the C / N ratios. For hollows isotope patterns were less clear, but some hollows and degraded hollows in the palsa peatlands show differences in their stable carbon isotope depth profiles indicating enhanced degradation rates. We conclude that the degradation of palsa peatlands by accelerated permafrost thawing could be identified with stable carbon isotope depth profiles. At intact hummocks δ13C depth patterns display the uplifting of peat material by a change in peat decomposition processes.
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Kelly, Jeffrey F. "Stable isotopes of carbon and nitrogen in the study of avian and mammalian trophic ecology." Canadian Journal of Zoology 78, no. 1 (February 28, 2000): 1–27. http://dx.doi.org/10.1139/z99-165.

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Differential fractionation of stable isotopes of carbon during photosynthesis causes C4 plants and C3 plants to have distinct carbon-isotope signatures. In addition, marine C3 plants have stable-isotope ratios of carbon that are intermediate between C4 and terrestrial C3 plants. The direct incorporation of the carbon-isotope ratio (13C/12C) of plants into consumers' tissues makes this ratio useful in studies of animal ecology. The heavy isotope of nitrogen (15N) is preferentially incorporated into the tissues of the consumer from the diet, which results in a systematic enrichment in nitrogen-isotope ratio (15N/14N) with each trophic level. Consequently, stable isotopes of nitrogen have been used primarily to assess position in food chains. The literature pertaining to the use of stable isotopes of carbon and nitrogen in animal trophic ecology was reviewed. Data from 102 studies that reported stable-isotope ratios of carbon and (or) nitrogen of wild birds and (or) mammals were compiled and analyzed relative to diet, latitude, body size, and habitat moisture. These analyses supported the predicted relationships among trophic groups. Carbon-isotope ratios differed among species that relied on C3, C4, and marine food chains. Likewise, nitrogen-isotope ratios were enriched in terrestrial carnivorous mammals relative to terrestrial herbivorous mammals. Also, marine carnivores that ate vertebrates had nitrogen-isotope ratios that were enriched over the ratios of those that ate invertebrates. Data from the literature also indicated that (i) the carbon-isotope ratio of carnivore bone collagen was inversely related to latitude, which was likely the result of an inverse relationship between the proportion of carbon in the food chain that was fixed by C4 plants and latitude; (ii) seabirds and marine mammals from northern oceans had higher nitrogen-isotope ratios than those from southern oceans; (iii) the nitrogen-isotope ratios of terrestrial mammals that used xeric habitats were higher than the ratios of those that used mesic habitats, indicating that water stress can have important effects on the nitrogen-isotope ratio; (iv) there was no relationship between body mass and nitrogen-isotope ratio for either bone collagen or muscle of carnivores; and (v) there was linear covariation between stable-isotope ratios of carbon and nitrogen in marine food chains (but not in terrestrial C3 or C4 food chains), which is likely a product of increases in carbon-isotope ratio with trophic level in marine food chains. Differences in stable-isotope composition among trophic groups were detected despite variation attributable to geographic location, climate, and analytical techniques, indicating that these effects are large and pervasive. Consequently, as knowledge of the distribution of stable isotopes of carbon and nitrogen increases, they will probably become an increasingly important tool in the study of avian and mammalian trophic ecology.
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Benbow, Timothy J., Alan R. Hayman, Robert Van Hale, and Russell Frew. "Preparation of aqueous fatty acids for hydrogen and carbon stable isotope analysis by solid phase extraction." Marine and Freshwater Research 64, no. 4 (2013): 294. http://dx.doi.org/10.1071/mf12192.

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Stable isotope analyses of fatty acids in environmental waters provides important information as to their source(s). Analysis is often confounded due to low concentrations of fatty acids and/or a complex sample matrix requiring separation of the target analyte. The purpose of this study was to validate a method to extract fatty acids from natural waters using solid phase extraction (SPE) before compound specific isotope analysis (CSIA). Three SPE cartridges and multiple eluting solvents were tested to determine the efficiency, isotopic fractionation, and reproducibility of each extraction technique. Our results indicated that surface-modified styrene divinylbenzene cartridges, when eluted with methanol, caused negligible fractionation of the hydrogen isotopes and minimal fractionation of the carbon isotopes, but that isotopic fractionation occurred when compounds were only partially eluted from SPE cartridges. Compounds were also extracted from landfill leachate using both SPE and liquid–liquid extraction (LLE). The hydrogen isotope composition (δ2H) of compounds extracted from water using either method were within experimental precision and the carbon isotope composition (δ13C) of all but one fatty acid were within experimental precision. Therefore, these experiments prove the aforementioned SPE methods to be a convenient and precise method to extract fatty acids from natural waters before CSIA.
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Passey, Benjamin H. "Reconstructing Terrestrial Environments Using Stable Isotopes in Fossil Teeth and Paleosol Carbonates." Paleontological Society Papers 18 (November 2012): 167–94. http://dx.doi.org/10.1017/s1089332600002606.

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Carbon isotopes in Neogene-age fossil teeth and paleosol carbonates are commonly interpreted in the context of past distributions of C3 and C4 vegetation. These two plant types have very different distributions in relation to climate and ecology, and provide a robust basis for reconstructing terrestrial paleoclimates and paleoenvironments during the Neogene. Carbon isotopes in pre-Neogene fossil teeth are usually interpreted in the context of changes in the δ13C value of atmospheric CO2, and variable climate-dependent carbon-isotope discrimination in C3 plants. Carbon isotopes in pre-Neogene soil carbonates can be used to estimate past levels of atmospheric CO2. Oxygen isotopes in fossil teeth and paleosol carbonates primarily are influenced by the oxygen isotopic compositions of ancient rainfall and surface waters. The oxygen isotopic composition of rainfall is has a complex, but tractable, relationship with climate, and variably relates to temperature, elevation, precipitation amount, and other factors. Mammal species that rely on moisture in dietary plant tissues to satisfy their water requirements (rather than surface drinking water) may have oxygen isotopic compositions that track aridity. Thus, oxygen isotopes of fossil mammals can place broad constraints on paleoaridity. Carbonate clumped isotope thermometry allows for reconstruction of soil temperatures at the time of pedogenic carbonate mineralization. The method is unique because it is the only thermodynamically based isotopic paleothermometer that does not require assumptions about the isotopic composition of the fluid in which the archive mineral formed. Soil temperature reflects a complex interplay of air temperature, solar radiative heating, latent heat effects, soil thermal diffusivity, and seasonal variations of these parameters. Because plants and most animals live in and/or near the soil, soil temperature is an important aspect of terrestrial (paleo)climate.
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Jensen, Alexandria, William Ford, James Fox, and Admin Husic. "Improving In-Stream Nutrient Routines in Water Quality Models Using Stable Isotope Tracers: A Review and Synthesis." Transactions of the ASABE 61, no. 1 (2018): 139–57. http://dx.doi.org/10.13031/trans.12545.

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Abstract. Water quality models serve as an economically feasible alternative to quantify fluxes of nutrient pollution and to simulate effective mitigation strategies; however, their applicability is often questioned due to broad uncertainties in model structure and parameterization, leading to uncertain outputs. We argue that reduction of uncertainty is partially achieved by integrating stable isotope data streams within the water quality model architecture. This article outlines the use of stable isotopes as a response variable within water quality models to improve the model boundary conditions associated with nutrient source provenance, constrain model parameterization, and elucidate shortcomings in the model structure. To assist researchers in future modeling efforts, we provide an overview of stable isotope theory; review isotopic signatures and applications for relevant carbon, nitrogen, and phosphorus pools; identify biotic and abiotic processes that impact isotope transfer between pools; review existing models that have incorporated stable isotope signatures; and highlight recommendations based on synthesis of existing knowledge. Broadly, we find existing applications that use isotopes have high efficacy for reducing water quality model uncertainty. We make recommendations toward the future use of sediment stable isotope signatures, given their integrative capacity and practical analytical process. We also detail a method to incorporate stable isotopes into multi-objective modeling frameworks. Finally, we encourage watershed modelers to work closely with isotope geochemists to ensure proper integration of stable isotopes into in-stream nutrient fate and transport routines in water quality models. Keywords: Isotopes, Nutrients, Uncertainty analysis, Water quality modeling, Watershed.
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Roth, James D., and Keith A. Hobson. "Stable carbon and nitrogen isotopic fractionation between diet and tissue of captive red fox: implications for dietary reconstruction." Canadian Journal of Zoology 78, no. 5 (May 1, 2000): 848–52. http://dx.doi.org/10.1139/z00-008.

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The amount of isotopic fractionation (change in isotope ratios) between diet and animal tissues is generally poorly known and may be affected by trophic position. Diet-tissue fractionation of stable-carbon and -nitrogen isotopes was measured in several tissues of red foxes (Vulpes vulpes) raised on a commercial pellet feed. Stable carbon isotopic fractionation in red fox was positive for all tissues and was greatest in fur (2.6‰), intermediate in muscle (1.1‰), and least in liver and blood fractions (0.4-0.6‰). These carbon isotope fractionation values were greater than those previously measured for mammalian herbivores but were similar to values for marine mammals in most tissues. Little variation in stable nitrogen isotopic fractionation occurred among tissues, except in the blood fractions. Nitrogen isotopic fractionation was much higher in blood serum (4.2‰) than in liver, muscle, and fur (3.3-3.5‰). Cellular fractions of blood had the lowest fractionation values (2.6‰). There was a significant age effect in nitrogen- but not in carbon-isotopic fractionation. Subadult foxes (<1 year) were significantly enriched in 15N compared with adult foxes for fur, muscle, and liver (no blood was collected from adults). The cause of this enrichment is unclear, but it may be related to the higher rate of protein synthesis and catabolism in growing animals. This study is the first to report isotopic fractionation values for a terrestrial mammalian carnivore. Such estimates are necessary to interpret stable-isotope patterns in wild carnivores.
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Dissertations / Theses on the topic "STABLE CARBON ISOTOPE"

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Broadmeadow, Mark. "Stable carbon isotope discrimination in forest canopies." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386693.

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Kim, Moon Koo. "Stable carbon isotope ratio of polycyclic aromatic hydrocarbons (PAHs) in the environment: validation of isolation and stable carbon isotope analysis methods." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/1099.

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Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous, toxic contaminants that are released to the environment from various petrogenic and pyrogenic sources. In an effort to more clearly identify and trace sources of PAHs in the environment, purification and compound specific isotope analysis methods were developed to accurately measure the stable carbon isotope ratio of individual PAHs. Development of the method included improving accuracy and precision of the isotopic measurement by producing highly pure extracts using various chromatographic techniques. The method was refined by improving compound separations using purification techniques and high resolution chromatographic columns. The purification method consists of alumina/silica gel column chromatography, gel permeation chromatography and thin layer chromatography. The mean recovery of PAHs after the purification procedure was approximately 80 %. Sample purities after purification were verified by GC/FID and full scan mass spectrometry. To better resolve peaks and provide more accurate stable carbon isotope measurements, various gas chromatographic conditions were evaluated. The precision of the method ranged between 0.08 and 0.43 . The analytical protocols were evaluated to confirm compositional and stable isotopic integrity during purification and stable isotopic analysis. To confirm the utility of the purification and isotope analysis methods, various environmental samples from marine, land and lacustrine environments were analyzed. The isolates were analyzed for the composition and the stable carbon isotope ratios of PAHs. The stable carbon isotope ratio was measured by GC/IRMS and the results, along with quantitative compound compositions, were used to characterize and identify the contaminant sources. The sources of the PAHs in the study areas were differentiated by PAH molecular ratios and confirmed by stable carbon isotope ratios. This study confirms that compound specific isotope analysis of pollutants by GC/IRMS can be used to identify PAH sources in environmental samples. The study also confirms that the purification and stable carbon isotope analysis methods that were developed can be used to accurately measure the stable carbon isotope ratios of PAHs in environmental samples for the purpose of source identification. GC/IRMS measurement of stable isotopic compositions can be an effective fingerprinting method when used in conjunction with traditional molecular composition methods.
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Eek, Magnus. "Environmental control of stable carbon isotope systematics in Emiliania huxleyi." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0017/NQ52759.pdf.

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Lamb, Clare. "Stable carbon isotope variation during natural chloromethane and bromomethane production." Thesis, Queen's University Belfast, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343035.

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Boller, Amanda J. "Stable carbon isotope discrimination by rubisco enzymes relevant to the global carbon cycle." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4291.

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Five different forms of ribulose 1,5-bisphosphate carboxylase/oxygenase (RubisCO; IA, IB, IC, ID, II), the carboxylase of the Calvin-Benson-Bassham cycle (CBB), are utilized by plants, algae and autotrophic bacteria for carbon fixation. Discrimination against 13C by RubisCO is a major factor dictating the stable carbon isotopic composition (δ13C = {[13C/12C sample/13C/12C standard] - 1} X 1000) of biomass. To date, isotope discrimination, expressed as ε values (={[12k/13k] - 1} X 1000; 12k and 13k = rates of 12C and 13C fixation) has been measured for form IA, IB, and II RubisCOs from only a few species, with ε values ranging from 18 to 29 /. The aim of this study was to better characterize form ID and IC RubisCO enzymes, which differ substantially in primary structure from the IB enzymes present in many cyanobacteria and organisms with green plastids, by measuring isotopic discrimination and kinetic parameters (KCO2 and Vmax). Several major oceanic primary producers, including diatoms, coccolithophores, and some dinoflagellates have form ID RubisCO, while form IC RubisCO is present in many proteobacteria of ecological interest, including marine manganese-oxidizing bacteria, some nitrifying and nitrogen-fixing bacteria, and extremely metabolically versatile organisms such as Rhodobacter sphaeroides. The ε - values of the form ID RubisCO from the coccolithophore, Emiliania huxleyi and the diatom, Skeletonema costatum (respectively 11.1 / and 18.5 /) were measured along with form IC RubisCO from Rhodobacter sphaeroides and Ralstonia eutropha (respectively 22.9 / and 19.0 /). Isotopic discrimination by these form ID/IC RubisCOs is low when compared to form IA/IB RubisCOs (22-29 /). Since the measured form ID RubisCOs are less selective against 13C, oceanic carbon cycle models based on 13C values may need to be reevaluated to accommodate lower ε values of RubisCOs found in major marine algae. Additionally, with further isotopic studies, the extent to which form IC RubisCO from soil microorganisms contributes to the terrestrial carbon sink may also be determined.
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Carr, R. H. "High sensitivity stable carbon isotope ratio mass spectrometry : instrument development application." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303835.

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Burnett, Richard Lee. "Stable Carbon Isotope Evidence of Ancient Maya Agriculture at Tikal, Guatemala." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd3135.pdf.

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Webb, Megan. "Environmental controls of stable carbon isotope values in freshwater diatom silica." Thesis, Lancaster University, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.747983.

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Improved understanding of the impact of catchment processes on freshwater carbon cycling would aid prediction of carbon flux attributed to changes in climate or land use. Carbon transfer through terrestrial and aquatic environments can be traced using stable carbon isotopic analysis (δ13C). A refined method of δ13C, free from host effects, is the utilisation of diatom-bound carbon (δ13Cdiatom)-
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Vaiglova, Petra. "Neolithic agricultural management in the Eastern Mediterranean : new insight from a multi-isotope approach." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:c8824136-da35-43b2-a700-f458d0cc2fdf.

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The work presented in this dissertation explores the nature of agro-pastoral strategies developed by Neolithic farmers as a way to understand how early food production was inter-twined with environmental and socio-economic opportunities and constraints. Towards this end, a multi-isotope approach is used to address questions of scale and intensity of crop cultivation and animal management at the archaeological sites of Kouphovouno, southern Greece, Makriyalos, northern Greece, and Çatalhöyük, south-central Turkey. Measurements of stable carbon, nitrogen, oxygen and strontium isotope values of carbonized plant remains, human and animal bone collagen and animal tooth enamel are used to examine the similarities and differences in the types of treatments that individual species of plants and animals received during the agricultural cycle at the distinct locations. The results show that farmers at the three sites developed variable methods for exploiting the arable and pastoral landscape and catering to their economic and culinary needs. The discussion considers the implications of these findings to our understanding of the complexity and adaptability of early farming systems.
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Leavitt, Steven W., Austin Long, and Jeffrey S. Dean. "Tree-Ring Dating Through Pattern-Matching of Stable-Carbon Isotope Time Series." Tree-Ring Society, 1985. http://hdl.handle.net/10150/261321.

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Books on the topic "STABLE CARBON ISOTOPE"

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Béranger, Sandra. Modeling PCE degradation and associated stable carbon isotope effects. Ottawa: National Library of Canada, 2003.

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Introduction to isotope hydrology: Stable and radioactive isotopes of hydrogen, oxygen and carbon. London: Taylor & Francis, 2006.

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Isoscapes: Understanding movement, pattern, and process on earth through isotope mapping. Dordrecht: Springer, 2010.

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Sigman, Daniel M. The role of biological production in Pleistocene atmospheric carbon dioxide variations and the nitrogen isotope dynamics of the Southern Ocean. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1997.

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Stable carbon isotopes and prehistoric diets in the south-western Cape Province, South Africa. Oxford, England: B.A.R., 1986.

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Cravotta, Charles Angelo. Use of stable isotopes of carbon, nitrogen, and sulfer to identify sources of nitrogen in surface waters in the Lower Susquehanna River Basin, Pennsylvania. Lemoyne, Pa: U.S. Geological Survey ; Denver, Colo., 1995.

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Suttner, Thomas James. Conodont stratigraphy, facies-related distribution patterns and stable isotopes (carbon and oxygen) of the uppermost Silurian to lower Devonian Seewarte section (Carnic Alps, Carinthia, Austria). Wien: Geologische Bundesanstalt, 2007.

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Rast, Walter. Use of stable carbon and nitrogen isotopes to trace the larval striped bass food chain in the Sacramento-San Joaquin Estuary, California, April to September 1985. Sacramento, Calif: Dept. of the Interior, U.S. Geological Survey, 1989.

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Pätzold, J. Temperatur- und CO₂-Änderungen um tropischen Oberflächenwasser der Philippinen während der letzten 120 Jahre: Speicherung in stabilen Isotopen hermatyper Korallen = Temperature and CO₂ changes in tropical surface waters of the Philippines during the past 120 years : record in the stable isotopes of hermatypic corals. Kiel, B.R. Deutschland: Geologisch-Paläontologisches Institut und Museum, Christian-Albrechts-Universität, 1986.

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Rast, Walter. Use of stable carbon and nitrogen isotopes to trace the larval striped bass food chain in the Sacramento-San Joaquin Estuary, California, April to September 1985 / by Walter Rast and James E. Sutton ; prepared in cooperation with the California State Water Resources Control Board. Sacramento, Calif: Dept. of the Interior, U.S. Geological Survey, 1989.

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Book chapters on the topic "STABLE CARBON ISOTOPE"

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Freeman, Katherine H. "11. Isotopie Biogeochemistry of Marine Organic Carbon." In Stable Isotope Geochemistry, edited by John W. Valley and David R. Cole, 579–606. Berlin, Boston: De Gruyter, 2001. http://dx.doi.org/10.1515/9781501508745-014.

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Ripperdan, Robert L. "13. Stratigraphic Variation in Marine Carbonate Carbon Isotope Ratios." In Stable Isotope Geochemistry, edited by John W. Valley and David R. Cole, 637–62. Berlin, Boston: De Gruyter, 2001. http://dx.doi.org/10.1515/9781501508745-016.

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Hayes, John M. "3. Fractionation of Carbon and Hydrogen Isotopes in Biosynthetic Processes." In Stable Isotope Geochemistry, edited by John W. Valley and David R. Cole, 225–78. Berlin, Boston: De Gruyter, 2001. http://dx.doi.org/10.1515/9781501508745-006.

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Attendorn, H. G., and R. N. C. Bowen. "Carbon-14 dating." In Radioactive and Stable Isotope Geology, 244–67. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5840-4_9.

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Des Marais, David J. "10. Isotopic Evolution of the Biogeochemical Carbon Cycle During the Precambrian." In Stable Isotope Geochemistry, edited by John W. Valley and David R. Cole, 555–78. Berlin, Boston: De Gruyter, 2001. http://dx.doi.org/10.1515/9781501508745-013.

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Chacko, Thomas, David R. Cole, and Juske Horita. "1. Equilibrium Oxygen, Hydrogen and Carbon Isotope Fractionation Factors Applicable to Geologic Systems." In Stable Isotope Geochemistry, edited by John W. Valley and David R. Cole, 1–82. Berlin, Boston: De Gruyter, 2001. http://dx.doi.org/10.1515/9781501508745-004.

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Attendorn, H. G., and R. N. C. Bowen. "Other applications of biospheric carbon and oxygen." In Radioactive and Stable Isotope Geology, 419–39. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5840-4_16.

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Farquhar, G. D., K. T. Hubick, A. G. Condon, and R. A. Richards. "Carbon Isotope Fractionation and Plant Water-Use Efficiency." In Stable Isotopes in Ecological Research, 21–40. New York, NY: Springer New York, 1989. http://dx.doi.org/10.1007/978-1-4612-3498-2_2.

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Schwarcz, H. P., and M. J. Schoeninger. "Stable Isotopes of Carbon and Nitrogen as Tracers for Paleo-Diet Reconstruction." In Advances in Isotope Geochemistry, 725–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-10637-8_34.

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O'Donnell, Anthony G., Sasha N. Jenkins, and Andrew S. Whiteley. "RNA-Radioisotope Probing for Studying Carbon Metabolism in Soils." In Stable Isotope Probing and Related Technologies, 317–32. Washington, DC: ASM Press, 2014. http://dx.doi.org/10.1128/9781555816896.ch16.

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Conference papers on the topic "STABLE CARBON ISOTOPE"

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Husseinzadeh, R. "Thermal Maturities Based on Stable Carbon Isotope Composition Gases." In Caspian and Black Sea Geosciences Conference. Netherlands: EAGE Publications BV, 2008. http://dx.doi.org/10.3997/2214-4609.20146144.

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Magdas, D. A., G. Cristea, A. Bot, and V. Mirel. "The use of carbon stable isotope ratios in drugs characterization." In PROCESSES IN ISOTOPES AND MOLECULES (PIM 2013). AIP, 2013. http://dx.doi.org/10.1063/1.4833745.

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Stehmeier, Lester, Brad Magyar, Karlis Muehlenbachs, Xiaosu Lang, and Ajay Dalai. "Use of Stable Isotope Ratios to Determine the Origin of Coke Formed in Gas Turbines." In 2002 4th International Pipeline Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ipc2002-27115.

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Coke deposits can form in compression equipment on natural gas transmission lines. These deposits are a result of incomplete combustion due to poor fuel gas quality or incorrect equipment design and/or operation. There is an isotopic “signature” which is carried over from the fuel gas into the coke if incomplete combustion occurs, allowing the origin of the coke deposit to be identified. The use of a continuous flow gas chromatograph isotope ratio mass spectrometer (GC/IRMS) provides a convenient method for determining the isotopic composition of the components in the fuel gas. These ratios can then be used to identify if a correlation exists with the 13C/12C ratio of the coke sample. Previous projects in 1999 and 2000 demonstrated that the coke deposits found within gas turbines could be closely related to the incomplete combustion of the fuel gas. One outcome of that work was determining the value for having a good understanding of stable isotope signatures for gas entering the pipeline system. In 2000, fuel gas samples were obtained from various areas in the Alberta TransCanada collection system, their isotope ratios were measured and then used to produce coke. This work substantiated previous project work, reinforcing the isotopic relationship between coke and the source material. Current work is to produce a model to quantitatively relate the various components of the source material to coke deposits. This model could then be used as a tool to enhance the performance of the gas turbines. Detailed investigation into the sensitivity of stable carbon isotope measurements for identifying the source of coke deposits for a complete range of TransCanada fuel gas mixtures is presented.
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Rolle, Francesca, and Michela Sega. "Use of FTIR spectroscopy for the measurement of CO2 carbon stable isotope ratios." In 19th International Congress of Metrology (CIM2019), edited by Sandrine Gazal. Les Ulis, France: EDP Sciences, 2019. http://dx.doi.org/10.1051/metrology/201905002.

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Carbon dioxide (CO2) is one of the most important long-lived anthropogenic greenhouse gases. Ocean, land and biosphere contribute to take up CO2 emissions, but approximately half of fossil fuel CO2 accumulates in the atmosphere. The study of isotopic composition of CO2 can give useful information for assessing and quantifying the uptake of CO2 in the environmental compartments, as well as for distinguishing natural from anthropogenic carbon in the atmosphere. In this work, an activity for the development of a Fourier Transform Infrared spectroscopy (FTIR) based method for δ13C-CO2 determination in CO2 in air mixtures is presented. The FTIR can be calibrated by a classical approach based on primary calibration gas standards, but an alternative calibration can be based on the generation of synthetic spectra, by means of radiative transfer calculation codes such as the Multiple Atmospheric Layer Transmission (MALT University of Wollongong, Australia). Another software (B-FOS) developed at the Bureau International des Poids et Mesures (BIPM) allows to interface MALT and the FTIR management software. This calibration approach is fast and reliable and can be used when the classical calibration based on reference gas mixtures might be demanding. The uncertainty obtained for δ13C-CO2 measurements is around 0.1 ‰, at a nominal CO2 mole fraction of 400 μmol mol-1 in air.
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Myers, Timothy S. "DIET OF ORNITHOCHEIROID PTEROSAURS INFERRED FROM STABLE CARBON ISOTOPE ANALYSIS OF TOOTH ENAMEL." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-305496.

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Ogata Bernstein, Jake, Pedro J. Marenco, and Donald C. Barber. "RELIABILITY OF COMMON CARBONATE ISOLATION TECHNIQUES AND SUBSEQUENT FIDELITY OF STABLE CARBON ISOTOPE SIGNATURES." In 54th Annual GSA Northeastern Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019ne-328232.

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Nishida, Kozue, Ayaka Yasu, Nobuaki Nanjyo, Motomitsu Takahashi, Satoshi Kitajima, and Toyoho Ishimura. "Measurement of Stable Carbon and Oxygen Isotope Ratios of Individual Otoliths of Early Developmental Stage Japanese Anchovy and Sardine with the MICAL3c Microscale Stable Isotope Analytical System." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1936.

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Rongde, Xu, Chen Jianfa, and Wan Yunyang. "The Component and Stable Carbon Isotope Analysis of Casing Gases on Low Permeability Reservoir Meor." In 29th International Meeting on Organic Geochemistry. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201902909.

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Rolle, Francesca, and Michela Sega. "Stable carbon isotope signatures in atmosphere and seawater as a basis for climate change studies." In 2018 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea). IEEE, 2018. http://dx.doi.org/10.1109/metrosea.2018.8657888.

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Fritz, Tyler, and Crayton J. Yapp. "MIOCENE WEATHERING AND THE STABLE CARBON ISOTOPE GEOCHEMISTRY OF GOETHITE IN CID OF WESTERN AUSTRALIA." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-278636.

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Reports on the topic "STABLE CARBON ISOTOPE"

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Burke, F. P., R. A. Winschel, and M. S. Lancet. Stable carbon isotope analysis of coprocessing materials. Office of Scientific and Technical Information (OSTI), June 1989. http://dx.doi.org/10.2172/5717939.

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Burke, F. P., R. A. Winschel, and M. S. Lancet. Stable carbon isotope analysis of coprocessing materials: Quarterly technical progress report, October 1--December 31, 1988. Office of Scientific and Technical Information (OSTI), March 1989. http://dx.doi.org/10.2172/6058419.

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Burke, F. P., R. A. Winschel, and M. S. Lancet. Stable carbon isotope analysis of coprocessing materials: Quarterly technical progress report, July 1--September 30, 1988. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/6177436.

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Buckley, Daniel. Microbial food web mapping: linking carbon cycling and community structure in soils through pyrosequencing enabled stable isotope probing. Office of Scientific and Technical Information (OSTI), March 2015. http://dx.doi.org/10.2172/1172474.

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Mize, A. L. Differential utilization of allochthonous and autochthonous carbon by aquatic insects of two shrub-steppe desert spring-streams: A stable carbon isotope analysis and critique of the method. Office of Scientific and Technical Information (OSTI), June 1993. http://dx.doi.org/10.2172/10171068.

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Heath, Jeff. Using Stable Isotopes of Carbon to Monitor Biodegradation of Pollutant Compounds,. Fort Belvoir, VA: Defense Technical Information Center, April 1995. http://dx.doi.org/10.21236/ada302216.

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Use of stable isotopes of carbon, nitrogen, and sulfur to identify sources of nitrogen in surface waters in the lower Susquehanna River basin, Pennsylvania. US Geological Survey, 2002. http://dx.doi.org/10.3133/wsp2497.

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Use of stable carbon and nitrogen isotopes to trace the larval striped bass food chain in the Sacramento-San Joaquin Estuary, California, April to September 1985. US Geological Survey, 1989. http://dx.doi.org/10.3133/wri884164.

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