Gotowe bibliografie tematyczne / Hydrogen isotopic composition

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Gotowa bibliografia na temat „Hydrogen isotopic composition”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Hydrogen isotopic composition"

Natarajan, Surendar. "Estimation of Surface and Groundwater Interaction by Stable Isotopic Techniques – A Case Study of Chengalpattu District, OMR Region." Nature Environment and Pollution Technology 23, no. 3 (2024): 1559–68. http://dx.doi.org/10.46488/nept.2024.v23i03.025.

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Isotopes are atoms of an element having the same atomic number but different mass numbers. Isotopes in hydrology and water resources are used for identifying its occurrence, movement, residence times, recharge, and discharge process. Stable isotopes of hydrogen(δ2H) and oxygen(δ2O) are used for identifying the surface and groundwater interactions as they constitute hydrogen and oxygen. In this study oxygen and hydrogen stable isotopes are used to identify surface and groundwater interaction in Old Mahabalipuram Road (OMR) regions of Chengalpattu district. The precipitation, lake, surface, and

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Hürkamp, Kerstin, Nadine Zentner, Anne Reckerth, et al. "Spatial and Temporal Variability of Snow Isotopic Composition on Mt. Zugspitze, Bavarian Alps, Germany." Journal of Hydrology and Hydromechanics 67, no. 1 (2019): 49–58. http://dx.doi.org/10.2478/johh-2018-0019.

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Abstract High amounts of precipitation are temporarily stored in high-alpine snow covers and play an important role for the hydrological balance. Stable isotopes of hydrogen (δ2H) and oxygen (δ18O) in water samples have been proven to be useful for tracing transport processes in snow and meltwater since their isotopic ratio alters due to fractionation. In 18 snow profiles of two snowfall seasons, the temporal and spatial variation of isotopic composition was analysed on Mt. Zugspitze. The δ18O and δ2H ranged between -26.7‰ to -9.3‰ and -193.4‰ to -62.5‰ in 2014/2015 and between -26.5‰ to -10.5

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Uemura, Ryu, Yudai Kina, Chuan-Chou Shen, and Kanako Omine. "Experimental evaluation of oxygen isotopic exchange between inclusion water and host calcite in speleothems." Climate of the Past 16, no. 1 (2020): 17–27. http://dx.doi.org/10.5194/cp-16-17-2020.

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Abstract. The oxygen and hydrogen isotopic compositions of water in fluid inclusions in speleothems are important hydroclimate proxies because they provide information on the isotopic compositions of rainwater in the past. Moreover, because isotopic differences between fluid inclusion water and the host calcite provide information on the past isotopic fractionation factor, they are also useful for quantitative estimation of past temperature changes. The oxygen isotope ratio of inclusion water (δ18Ofi), however, may be affected by isotopic exchange between the water and the host carbonate. Thus

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Kennedy, Brenda V., and H. Roy Krouse. "Isotope fractionation by plants and animals: implications for nutrition research." Canadian Journal of Physiology and Pharmacology 68, no. 7 (1990): 960–72. http://dx.doi.org/10.1139/y90-146.

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The isotopic compositions of animal tissues, minerals, and fluids reflect those of ingested food and water and inhaled gases. This relationship is illustrated by a review of data pertaining to five light elements of biological interest (carbon, nitrogen, hydrogen, oxygen, and sulphur). Processes affecting the isotopic composition of inorganic compounds in reservoirs are summarized, and isotope fractionation during transfer of elements from these inorganic reservoirs through progressive trophic levels of food webs is discussed. Variability of δ values within and among individuals, populations,

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Qu, Simin, Xueqiu Chen, Yifan Wang, et al. "Isotopic Characteristics of Precipitation and Origin of Moisture Sources in Hemuqiao Catchment, a Small Watershed in the Lower Reach of Yangtze River." Water 10, no. 9 (2018): 1170. http://dx.doi.org/10.3390/w10091170.

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The stable isotopes of oxygen and hydrogen in the water cycle have become a significant tool to study run-off formation, hydrograph separation, and the origin of precipitation. Precipitation assessment based on isotopic data has a potential implication for moisture sources. In the study, δD and δ18O of precipitation samples collected from six rainfall events were analyzed for stable isotope composition to provide implication of isotopic characteristics as well as moisture sources in Hemuqiao basin within Lake Tai drainage basin, eastern China. In these events, stable oxygen and hydrogen isotop

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Pieterse, G., M. C. Krol, A. M. Batenburg, et al. "Global modelling of H<sub>2</sub> mixing ratios and isotopic compositions with the TM5 model." Atmospheric Chemistry and Physics Discussions 11, no. 2 (2011): 5811–66. http://dx.doi.org/10.5194/acpd-11-5811-2011.

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Abstract. The isotopic composition of molecular hydrogen (H2) contains independent information for constraining the global H2 budget. To explore this, we have implemented hydrogen sources and sinks, including their isotopic composition, into the global chemistry transport model TM5. For the first time, a global model now includes a simplified but explicit isotope reaction scheme for the photochemical production of H2. We present a comparison of modelled results for the H2 mixing ratio and isotope composition with available measurements on the seasonal to inter annual time scales for the years

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Li, Xiangnan, Baisha Weng, Denghua Yan, et al. "Anthropogenic Effects on Hydrogen and Oxygen Isotopes of River Water in Cities." International Journal of Environmental Research and Public Health 16, no. 22 (2019): 4429. http://dx.doi.org/10.3390/ijerph16224429.

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Stable hydrogen and oxygen isotopes are important indicators for studying water cycles. The isotopes are not only affected by climate, but are also disturbed by human activities. Urban construction has changed the natural attributes and underlying surface characteristics of river basins, thus affecting the isotopic composition of river water. We collected urban river water isotope data from the Global Network for Isotopes in Rivers (GNIR) database and the literature, and collected river water samples from the Naqu basin and Huangshui River basin on the Tibetan Plateau to measure hydrogen and o

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Abiye, Tamiru A., Molla B. Demlie та Haile Mengistu. "An Overview of Aquifer Physiognomies and the δ18O and δ2H Distribution in the South African Groundwaters". Hydrology 8, № 2 (2021): 68. http://dx.doi.org/10.3390/hydrology8020068.

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A comprehensive assessment of the stable isotope distribution in the groundwater systems of South Africa was conducted in relation to the diversity in the aquifer lithology and corresponding hydraulic characteristics. The stable isotopes of oxygen (18O) and hydrogen (2H) in groundwater show distinct spatial variation owing to the recharge source and possibly mixing effect in the aquifers with the existing water, where aquifers are characterized by diverse hydraulic conductivity and transmissivity values. When the shallow aquifer that receives direct recharge from rainfall shows a similar isoto

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Pieterse, G., M. C. Krol, A. M. Batenburg, et al. "Global modelling of H<sub>2</sub> mixing ratios and isotopic compositions with the TM5 model." Atmospheric Chemistry and Physics 11, no. 14 (2011): 7001–26. http://dx.doi.org/10.5194/acp-11-7001-2011.

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Abstract. The isotopic composition of molecular hydrogen (H2) contains independent information for constraining the global H2 budget. To explore this, we have implemented hydrogen sources and sinks, including their stable isotopic composition and isotope fractionation constants, into the global chemistry transport model TM5. For the first time, a global model now includes a simplified but explicit isotope reaction scheme for the photochemical production of H2. We present a comparison of modelled results for the H2 mixing ratio and isotope composition with available measurements on seasonal to

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Novikov, Dmitry A., Aleksandr N. Pyrayev, Fedor F. Dultsev, Anatoliy V. Chernykh, Svetlana V. Bakustina, and Dmitry V. Ulyanov. "FORMATION CONDITIONS OF GROUNDWATER OF THE UPPER JURASSIC OF THE CENTRAL REGIONS OF THE ZAURAL MEGAMONOCLYSIS." Interexpo GEO-Siberia 2, no. 1 (2021): 181–90. http://dx.doi.org/10.33764/2618-981x-2021-2-1-181-190.

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The article presents the first results of complex isotope-hydrogeochemical studies of reservoir waters of the Upper Jurassic deposits of the central regions of the Zaural megamonoclysis. It was shown that most waters have a narrow distribution of oxygen and hydrogen isotopes (δD from -103.2 to -85.6 ‰ and δO from -15.4 to -12.9 ‰). Some of them have pronounced excursions on the isotopic composition, which indicates a difference in their genesis: from condensate to mixed with ancient infiltrogenic. The isotopic composition of carbon of water-dissolved carbon dioxide (δС from -41.6 to -16.3 ‰) i

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Rozprawy doktorskie na temat "Hydrogen isotopic composition"

ZNEIMER, STEPHANIA. "Stable isotopic composition of southern Illinois precipitation from (2012-2017) summary." OpenSIUC, 2019. https://opensiuc.lib.siu.edu/theses/2578.

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This study examines variability in the isotopic composition of precipitation in southern Illinois, USA using a 5-year, event-based record, novel in its duration and in potential to extract important isotopic information of precipitation in a dynamic region, and the seasonality of major moisture sources. The isotopic composition of precipitation exhibited seasonal variations in δ18O and δ2H, where values are distinctively higher (lower) during summer (winter). Average values for d-excess were the highest (lowest) during autumn (summer). Seasonality is also present in events originating from the

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Leshin, Laurie Ann Stolper Edward M. Stolper Edward M. "The abundance and hydrogen isotopic composition of water in SNC meteorites : implications for water on Mars /." Diss., Pasadena, Calif. : California Institute of Technology, 1995. http://resolver.caltech.edu/CaltechETD:etd-11062007-091745.

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Snover, Amy Katherine. "The stable hydrogen isotopic composition of methane emitted from biomass burning and removed by oxic soils : application to the atmospheric methane budget /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/11570.

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Burke, Roger Allen Jr. "Stable Hydrogen and Carbon Isotopic Compositions of Biogenic Methanes." Scholar Commons, 1985. https://scholarcommons.usf.edu/etd/7658.

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Stable hydrogen and carbon isotopic compositions of biogenic methanes collected from the sediments of several deep-sea, nearshore marine-estuarine, and freshwater environments were determined. The isotopic compositions of methane samples from eight different DSDP Sites (mean σD-CH4 = -1850>/∞, std. dev. = 70>/∞, n = 75; mean σ13C-CH4 = -71.30/∞, std. dev. = 6.30/∞, n = 44) are generally typical of methane formed via C02 reduction in deep-sea sediments. Methane collected from several freshwater environments was D-depleted (mean σD-CH4 = -3000>/∞ , std. dev. = 260/∞, n = 20) and 13C-enriched (me

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Clog, Matthieu. "Concentration et composition isotopique en hydrogène du manteau terrestre." Paris 7, 2010. http://www.theses.fr/2010PA077209.

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Contraindre la concentration et la composition isotopique de l'hydrogène dans le manteau terrestre apporte des informations cruciales sur le cycle global de l'eau et la nature des hétérogénéités mantelliques. Dans ce but, les bordures vitreuses des basaltes sont les échantillons les plus adaptés Lors de cette étude, 170 échantillons provenant de 4 rides océaniques et 2 points chauds ont été analysés pour leurs concentrations en eau et leur δ D. Au cours de ce travail, un biais analytique lié à l'utilisation de creusets en platine pour extraire le éléments volatils a été mis en évidence. L'util

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Bates, Benjamin R. "Within Lake Spatial Variability of Long-chain n-alkanes and their Hydrogen Isotopic Compositions Adirondack Mountains, NY." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535373859284956.

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Dawson, Daniel. "Stable hydrogen isotope ratios of individual hydrocarbons in sediments and petroleum." Thesis, Curtin University, 2006. http://hdl.handle.net/20.500.11937/1237.

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Early research into the stable hydrogen isotopic compositions (δD) of petroleum involved bulk deuterium/hydrogen (D/H) measurements which, while providing some useful information, had to contend with the analysis of complex mixtures of hydrocarbons, and alteration resulting from the rapid exchange of nitrogen-, oxygen- and sulphur-bound hydrogen. The use of gas chromatography-isotope ratio mass spectrometry (GC-irMS) overcomes these problems by allowing the analysis of individual compounds containing only the most isotopically conservative aliphatic carbon-bound (C-bound) hydrogen. This projec

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Dawson, Daniel. "Stable hydrogen isotope ratios of individual hydrocarbons in sediments and petroleum." Curtin University of Technology, Department of Applied Chemistry, 2006. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=16839.

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Newberry, Sarah. "Molecular distributions and hydrogen isotopic compositions of n-alkanes from field studies of tree species : applications for paleoclimate studies." Thesis, University of East Anglia, 2013. https://ueaeprints.uea.ac.uk/49706/.

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The compound-specific δD values and molecular distributions of n-alkanes preserved in sediment archives are used as paleoclimate proxies. This use is based on two assumptions, 1) n-alkane δD values are highly correlated with source water δD values (Sachse 2012), and 2) the δD values of n-alkanes within a single site show little variation (Hou 2007). n-alkane molecular distributions are also used to infer the dominant source of n-alkanes input into sediment archives (Seki 2010). Despite this, paleoclimate reconstructions are being made without full understanding of how the δD values of nalkanes

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Jappy, Trevor George. "Compositional dependence of potassium-argon ages and hydrogen and oxygen stable isotopes in hornblendes from Connemara, Western Ireland." Thesis, University of Glasgow, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264263.

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Książki na temat "Hydrogen isotopic composition"

Martin, Whalen, and United States. National Aeronautics and Space Administration., eds. Carbon and hydrogen isotope composition and ℗£þ́C concentration in methane from sources and from the atmosphere: Implications for a global methane budget. National Aeronautics and Space Administration, 1994.

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Martin, Whalen, and United States. National Aeronautics and Space Administration., eds. Carbon and hydrogen isotope composition and C concentration in methane from sources and from the atmosphere: Implications for a global methane budget. National Aeronautics and Space Administration, 1994.

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National Aeronautics and Space Administration (NASA) Staff. Carbon and Hydrogen Isotope Composition and C-14 Concentration in Methane from Sources and from the Atmosphere: Implications for a Global Methane Budget. Independently Published, 2018.

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Części książek na temat "Hydrogen isotopic composition"

Quesnel, Benoît, Christophe Scheffer, and Georges Beaudoin. "The Light Stable Isotope (Hydrogen, Boron, Carbon, Nitrogen, Oxygen, Silicon, Sulfur) Composition of Orogenic Gold Deposits." In Isotopes in Economic Geology, Metallogenesis and Exploration. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27897-6_10.

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AbstractOrogenic gold deposits formed in various terranes of most ages since the Paleoarchean and generally consist of quartz veins hosted in shear zones formed at the ductile brittle transition under greenschist to lower amphibolite metamorphic conditions. Vein mineralogy is dominated by quartz with various amounts of silicates, carbonates, phyllosilicates, borates, tungstates, sulfides, and oxides. The isotopic composition of these minerals and fluid inclusions has been investigated since the 1960s to constrain the characteristics of orogenic fluid systems involved in the formation of gold d

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Huston, David L., Robert B. Trumbull, Georges Beaudoin, and Trevor Ireland. "Light Stable Isotopes (H, B, C, O and S) in Ore Studies—Methods, Theory, Applications and Uncertainties." In Isotopes in Economic Geology, Metallogenesis and Exploration. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27897-6_8.

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AbstractVariations in the abundances of light stable isotopes, particularly those of hydrogen, boron, carbon, oxygen and sulfur, were essential in developing mineralization models. The data provide constraints on sources of hydrothermal fluids, carbon, boron and sulfur, track interaction of these fluids with the rocks at both the deposit and district scales, and establish processes of ore deposition. In providing such constraints, isotopic data have been integral in developing genetic models for porphyry-epithermal, volcanic-hosted massive sulfide, orogenic gold, sediment-hosted base metal and

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Ferronsky, V. I., and V. A. Polyakov. "Hydrogen and Oxygen Isotopic Composition of Groundwater in Volcanic Regions." In Isotopes of the Earth's Hydrosphere. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2856-1_9.

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Allen, Scott T., Matthias Sprenger, Gabriel J. Bowen, and J. Renée Brooks. "Spatial and Temporal Variations in Plant Source Water: O and H Isotope Ratios from Precipitation to Xylem Water." In Stable Isotopes in Tree Rings. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_18.

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AbstractThe water present within trees when sugars and cellulose are formed is the source of hydrogen and oxygen atoms that are incorporated into tree-ring cellulose (see Chaps. 10.1007/978-3-030-92698-4_10 and 10.1007/978-3-030-92698-4_11). However, the isotope composition of relevant water pools is often unknown when trying to interpret δ18O and δ2H isotopic records in tree rings. This chapter focuses on the factors that can influence the O and H isotope ratios of source waters for trees. Trees generally use water that originated as precipitation, but this does not mean that the isotope rati

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Ferronsky, V. I., and V. A. Polyakov. "Hydrogen and Oxygen Isotopic Composition of Minerals of Magmatic and Metamorphic Rocks and Fluid Inclusions." In Isotopes of the Earth's Hydrosphere. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2856-1_10.

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Ferronsky, V. I., and V. A. Polyakov. "Hydrogen and Oxygen Isotopic Composition of Sedimentary Rocks of Marine Genesis and Implications for Paleothermometry." In Isotopes of the Earth's Hydrosphere. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2856-1_8.

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Burke, Roger A., and William M. Sackett. "Stable Hydrogen and Carbon Isotopic Compositions of Biogenic Methanes from Several Shallow Aquatic Environments." In ACS Symposium Series. American Chemical Society, 1986. http://dx.doi.org/10.1021/bk-1986-0305.ch017.

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Wright, I. P. "Stable Isotopic Compositions of Hydrogen, Carbon, Nitrogen, Oxygen and Sulfur in Meteoritic Low Temperature Condensates." In Ices in the Solar System. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5418-2_15.

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Cotrufo, M. Francesca, and Yamina Pressler. "Stable Isotopes, Notations, and Standards." In A Primer on Stable Isotopes in Ecology. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/oso/9780198854494.003.0002.

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Abstract “Stable Isotopes, Notations, and Standards” reviews the foundational concepts necessary for understanding and reporting stable isotopes data using appropriate notation and reference standards. The chapter defines stable isotopes and describes the isotopic composition of carbon, nitrogen, oxygen, hydrogen, and sulfur. Isotopocules are described as molecules differing in their isotopic composition, known as isotopologues, or for having different isotopic substitution, known as isotopomers. Isotones and isobars are also defined. Stable isotope data are examined using delta, fractional, a

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Streszczenia konferencji na temat "Hydrogen isotopic composition"

Ahsan, Dr Syed Asif, Reem Ali Mabkhout AlSeiari, Dr Tamer Koksalan, and Yatindra Bhushan. "Assessment of Sweep Efficiency and Breakthrough Using CO2, H2O, Carbon and Hydrogen Isotope Composition in a Water Alternating with Gas EOR Project in Onshore Abu Dhabi, UAE." In Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/208211-ms.

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Abstract Measuring sweep efficiency and understanding breakthrough are the most important parameters to assess an Enhanced Oil Recovery (EOR) project having Water Alternating with miscible CO2 Gas (WAG) injection. The objective of this study was to use CO2, H2O and isotope compositions to assess sweep efficiency and breakthrough in producer wells in an ADNOC Onshore field in order to take the necessary actions for project optimization (e.g., injector and/or future producer well location optimization). CO2 and H2O compositions, along with their respective carbon and hydrogen isotopes, was integ

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Keisling, Benjamin Andrew, Julie Brigham-Grette, Jeffrey M. Salacup, and Isla S. Castañeda. "RECONSTRUCTING ARCTIC HYDROLOGY USING THE HYDROGEN ISOTOPIC COMPOSITION OF LEAF WAXES." In 51st Annual Northeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016ne-272670.

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Dixon, Jacqueline, Ilya N. Bindeman, and Richard Kingsley. "HYDROGEN ISOTOPIC COMPOSITION OF ENRICHED MANTLE SOURCES: RESOLVING THE DEHYDRATION PARADOX." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-298878.

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Lehmann, Marco, Philipp Schuler, Valentina Vitali, Matthias Saurer, Marc-André Cormier, and Guido Wiesenberg. "The hydrogen isotopic composition of plant carbohydrates – Advancement in methods and interpretation." In Goldschmidt2022. European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.9425.

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Chikaraishi, Y. "Hydrogen Isotopic Composition of Fatty Acids, Sterols, and Phytol: Autotrophic Vs. Heterotrophic Production." In 29th International Meeting on Organic Geochemistry. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201902871.

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Ogliore, Ryan, Gerardo Dominguez, and Lauren Tafla. "Oxygen and Hydrogen Isotopic Composition of Zag Water Measured by Cavity Ring-down Spectroscopy." In Goldschmidt2021. European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.5438.

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Haettig, K., D. Varma, S. Schouten, and M. T. J. Van der Meer. "LARGE REGIONAL GLACIAL-INTERGLACIAL CHANGES IN HYDROGEN ISOTOPIC COMPOSITION OF ALKENONES NEAR THE CHILEAN MARGIN." In 30th International Meeting on Organic Geochemistry (IMOG 2021). European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202134103.

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APICELLA, M., V. VIOLANTE, F. SARTO, et al. "PROGRESS ON THE STUDY OF ISOTOPIC COMPOSITION IN METALLIC THIN FILMS UNDERGONE TO ELECTROCHEMICAL LOADING OF HYDROGEN." In Proceedings of the 12th International Conference on Cold Fusion. WORLD SCIENTIFIC, 2006. http://dx.doi.org/10.1142/9789812772985_0026.

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Mayorov, A. G. "MEASUREMENT OF THE ISOTOPIC COMPOSITION OF HYDROGEN AND HELIUM NUCLEI IN COSMIC RAYS WITH THE PAMELA-EXPERIMENT." In The 34th International Cosmic Ray Conference. Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.236.0270.

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Laurinat, James E., Neal M. Askew, and Steve J. Hensel. "Flammability Analysis for Actinide Oxides Packaged in 9975 Shipping Containers." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97478.

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Packaging options are evaluated for compliance with safety requirements for shipment of mixed actinide oxides packaged in a 9975 Primary Containment Vessel (PCV). Radiolytic gas generation rates, PCV internal gas pressures, and shipping windows (times to reach unacceptable gas compositions or pressures after closure of the PCV) are calculated for shipment of a 9975 PCV containing a plastic bottle filled with plutonium and uranium oxides with a selected isotopic composition. G-values for radiolytic hydrogen generation from adsorbed moisture are estimated from the results of gas generation tests

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Raporty organizacyjne na temat "Hydrogen isotopic composition"

Lacerda Silva, P., G. R. Chalmers, A. M. M. Bustin, and R. M. Bustin. Gas geochemistry and the origins of H2S in the Montney Formation. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329794.

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The geology of the Montney Formation and the geochemistry of its produced fluids, including nonhydrocarbon gases such as hydrogen sulfide were investigated for both Alberta and BC play areas. Key parameters for understanding a complex petroleum system like the Montney play include changes in thickness, depth of burial, mass balance calculations, timing and magnitudes of paleotemperature exposure, as well as kerogen concentration and types to determine the distribution of hydrocarbon composition, H2S concentrations and CO2 concentrations. Results show that there is first-, second- and third- or

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Kingston, A. W., O. H. Ardakani, G. Scheffer, M. Nightingale, C. Hubert, and B. Meyer. The subsurface sulfur system following hydraulic stimulation of unconventional hydrocarbon reservoirs: assessing anthropogenic influences on microbial sulfate reduction in the deep subsurface, Alberta. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330712.

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Hydraulic fracturing is a reservoir stimulation technique that involves the injection of high-pressure fluids to enhance recovery from unconventional hydrocarbon reservoirs. Often this involves the injection of surface waters (along with additives such as biocides) into formational fluids significantly different isotopic and geochemical compositions facilitating geochemical fingerprinting of these fluid sources. In some instances, the produced fluids experience an increase in hydrogen sulfide (H2S) concentration over the course of production resulting in an increased risk to health and safety,

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Boreham, C. J., L. Wang, J. Sohn, et al. Exploring for the Future - NDI Carrara 1 gas geochemistry: molecular composition, carbon and hydrogen isotopes of hydrocarbon gases, and the sources of molecular hydrogen and helium. Geoscience Australia, 2022. http://dx.doi.org/10.11636/record.2022.014.

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Liseroudi, M. H., O. H. Ardakani, P. K. Pedersen, R. A. Stern, J M Wood, and H. Sanei. Diagenetic and geochemical controls on H2S distribution in the Montney Formation, Peace River region, western Canada. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329785.

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The Lower Triassic Montney Formation is a major siltstone dominated unconventional tight gas play in the Western Canadian Sedimentary Basin (WCSB). In the Peace River region, the Montney Formation contains a regionally variable amount of hydrogen sulfide (H2S) in gas-producing wells with western Alberta's wells having the highest concentrations. Previous studies on the source and distribution of H2S in the Montney Formation mainly focused on variations of H2S concentration and its relationship with other hydrocarbon and non-hydrocarbon gases, sulfur isotope composition of H2S, as well as organ

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