carbon isotope
Multiple negative carbon-isotope excursions during the Carnian Pluvial Episode (Late Triassic)
... The Carnian (Julian Tuvalian) succession of the Dolomites (Fig. 1C and Fig. 2) begins with the marls and calcareous turbidites of the San Cassiano Formation (Julian). The relative modal composition of packstones and ...
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Organic carbon isotope values from the Late Permian Seis/Siusi succession (Dolomites, Italy): Implications for palaeoenvironmental changes
... carbonate carbon isotopes might be caused by heteroge- neous sources of the organics (marine/terrestrial/bacter- ial) (see ...heavier carbon isotope values than coeval marine organic matter (Faure et ...
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1 Stable Carbon Isotope Composition of the Lipids in 2 Natural Cordyceps Sinensis from Major Habitats in
... Keywords: stable carbon isotope analysis; lipids; fatty acids; Cordyceps sinensis ; the Qinghai-Tibetan 27 PlateauC. Introduction 30.[r] ...
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RELATIONSHIP OF SPECIFIC LEAF AREA AND CARBON ISOTOPE DISCRIMINATION WITH DRY MATTER PRODUCTION AND POD YIELD IN GROUNDNUT GENOTYPE UNDER MOISTURE STRESS
... The relationship of specific leaf area and carbon isotope discrimination with dry matter production and partitioning in groundnut was studied under adequately irrigated and si[r] ...
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Interpretation and application of carbon isotope ratios in freshwater diatom silica
... Prime100 isotope ratio mass spectrometer at Lancaster University for contemporary UK river samples and Lake Tanganyika sediments, and at Isoprime UK in Cheadle for contemporary European lake ...
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Differences in Leaf Water Use Efficiency Among Soybean Cultivars not Well Correlated with Carbon Isotope Ratios
... In 2017, there were five measurement dates, from July 25 to August 9, and in 2018, there were four measurement dates, from August 6 to August 23. On the earliest measurement date each year, plant development ranged from ...
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Carbon isotope discrimination by Eucalyptus species in the Northern Territory, Australia
... Species mean leaf and wood /J.., as well as tree size, decreased with increasing latitude equivalent to decreasing total annual rainfall, increasing SVPD, and drought lengths, while leaf[r] ...
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Sources, fluxes, and behaviors of fluorescent dissolved organic matter (FDOM) in the Nakdong River Estuary, Korea
... the carbon isotope values of our samples fit well into the conservative mixing curve of the overall trend, with a slight change using different end-member values for differ- ent months ...
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Assessment of Genetic Variation of Growth and Water-Use Efficiency (WUE) in Mature Longleaf Pine (Pinus palustris Mill.).
... Carbon isotope discrimination (∆ 13 C) varied significantly among these longleaf pine ...in carbon isotope discrimination can be highly heritable and strongly related to growth (Johnsen et ...
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The stable isotope composition of organic and inorganic fossils in lake sediment records: current understanding, challenges, and future directions
... Reconstructing long-term changes 150 years in the carbon cycle of a clear-water lake based on the stable carbon isotope composition δ13C of chironomid and cladoceran subfossil remains.. [r] ...
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Contributions of the direct supply of belowground seagrass detritus and trapping of suspended organic matter to the sedimentary organic carbon stock in seagrass meadows
... stable carbon isotopic ra- tio of each sample with an elemental analyzer-connected iso- tope ratio mass spectrometer (FLASH EA 1112/DELTA plus Advantage, Thermo Electron, ...stable carbon isotope ...
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The first investigation of Wilms’ tumour atomic structure– nitrogen and carbon isotopic composition as a novel biomarker for the most individual approach in cancer disease
... level. Isotope Ratio Mass Spectrometry (IRMS) was used to directly assess the isotope ratios of nitrogen and carbon in 84 Wilms’ tumour tissue samples from 28 cases representing the histological ...
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Searching for an oxygenation event in the fossiliferous Ediacaran of northwestern Canada
... The stratigraphic relationship between the Shuram carbon isotope excursion, the oxygenation of Neoproterozoic oceansm and the first appearence of the Ediacara biota and bilaterian trace [r] ...
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Pyrogenic carbon from tropical savanna burning: production and stable isotope composition
... the carbon isotope com- position of each ...Total carbon exposed is positively correlated with fire res- idence time, and increasing fire residence time reduces the proportion of HyPyC produced due ...
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Onset of the aerobic nitrogen cycle during the Great Oxidation Event
... nitrogen isotope data in the context of Fe speciation and carbon isotope data suggests biogeochemical cycling across a dynamic redox boundary, with primary productivity fuelled by chemoautotrophic ...
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Interesting Papers in Other Journals
... Stable carbon isotope geochemistry of associated gases of Gandhar Field, Cambay Basin, India.. PORWAL and others.[r] ...
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A 2500 yr late holocenemulti proxy record of vegetation and hydrologic changes from a cave guano clay sequence in SW Romania
... stable carbon isotope, charcoal, and pollen-based evidence from a guano/clay sequence in Gaura cu Musc ă Cave (SW Romania), from which we deduced that from ~1230 BC to ~AD 1240 climate oscillated between ...
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Isotope effects of plasma chemical carbon oxidation in a magnetic field
... the isotope separation effectiveness with increasing the distance from the greatest temperature area was connected with the decrease of intensity of the formation of gaseous reaction ...heavy carbon ...
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Bipolar carbon and hydrogen isotope constraints on the Holocene methane budget
... To compare values from different ice core data sets (with different and variable temporal resolutions and measurement precisions) interpolation of the data to a common age scale is needed. Additionally, the records have ...
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Hagfish feeding habits along a depth gradient inferred from stable isotopes
... Acknowledgements. The MV ‘Tranquil Image’ crew N. Fur- ley, G. Gibbs and S. Kelly helped to organize all of the field- work using baited fish traps. R. Crech’riou, A. Smith, C. Bed- ford, O. Hannaford, K. Rodgers, C. ...
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