Literatura académica sobre el tema "Hydrogen isotopic composition"
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Artículos de revistas sobre el tema "Hydrogen isotopic composition"
Hürkamp, Kerstin, Nadine Zentner, Anne Reckerth, Stefan Weishaupt, Karl-Friedrich Wetzel, Jochen Tschiersch y Christine Stumpp. "Spatial and Temporal Variability of Snow Isotopic Composition on Mt. Zugspitze, Bavarian Alps, Germany". Journal of Hydrology and Hydromechanics 67, n.º 1 (1 de marzo de 2019): 49–58. http://dx.doi.org/10.2478/johh-2018-0019.
Texto completoUemura, Ryu, Yudai Kina, Chuan-Chou Shen y Kanako Omine. "Experimental evaluation of oxygen isotopic exchange between inclusion water and host calcite in speleothems". Climate of the Past 16, n.º 1 (7 de enero de 2020): 17–27. http://dx.doi.org/10.5194/cp-16-17-2020.
Texto completoKennedy, Brenda V. y H. Roy Krouse. "Isotope fractionation by plants and animals: implications for nutrition research". Canadian Journal of Physiology and Pharmacology 68, n.º 7 (1 de julio de 1990): 960–72. http://dx.doi.org/10.1139/y90-146.
Texto completoQu, Simin, Xueqiu Chen, Yifan Wang, Peng Shi, Shuai Shan, Jianfeng Gou y Peng Jiang. "Isotopic Characteristics of Precipitation and Origin of Moisture Sources in Hemuqiao Catchment, a Small Watershed in the Lower Reach of Yangtze River". Water 10, n.º 9 (31 de agosto de 2018): 1170. http://dx.doi.org/10.3390/w10091170.
Texto completoPieterse, G., M. C. Krol, A. M. Batenburg, L. P. Steele, P. B. Krummel, R. L. Langenfelds y T. Röckmann. "Global modelling of H<sub>2</sub> mixing ratios and isotopic compositions with the TM5 model". Atmospheric Chemistry and Physics Discussions 11, n.º 2 (17 de febrero de 2011): 5811–66. http://dx.doi.org/10.5194/acpd-11-5811-2011.
Texto completoHamzić Gregorčič, Staša, Doris Potočnik, Federica Camin y Nives Ogrinc. "Milk Authentication: Stable Isotope Composition of Hydrogen and Oxygen in Milks and Their Constituents". Molecules 25, n.º 17 (2 de septiembre de 2020): 4000. http://dx.doi.org/10.3390/molecules25174000.
Texto completoLi, Xiangnan, Baisha Weng, Denghua Yan, Tianling Qin, Kun Wang, Wuxia Bi, Zhilei Yu y Batsuren Dorjsuren. "Anthropogenic Effects on Hydrogen and Oxygen Isotopes of River Water in Cities". International Journal of Environmental Research and Public Health 16, n.º 22 (12 de noviembre de 2019): 4429. http://dx.doi.org/10.3390/ijerph16224429.
Texto completoAbiye, Tamiru A., Molla B. Demlie y Haile Mengistu. "An Overview of Aquifer Physiognomies and the δ18O and δ2H Distribution in the South African Groundwaters". Hydrology 8, n.º 2 (19 de abril de 2021): 68. http://dx.doi.org/10.3390/hydrology8020068.
Texto completoKakareka, S. V., T. I. Kukharchyk, A. A. Ekaykin y Yu G. Giginyak. "Stable isotopes in the snow of the coastal areas of Antarctica". Doklady of the National Academy of Sciences of Belarus 65, n.º 4 (2 de septiembre de 2021): 495–502. http://dx.doi.org/10.29235/1561-8323-2021-65-4-495-502.
Texto completoPieterse, G., M. C. Krol, A. M. Batenburg, L. P. Steele, P. B. Krummel, R. L. Langenfelds y T. Röckmann. "Global modelling of H<sub>2</sub> mixing ratios and isotopic compositions with the TM5 model". Atmospheric Chemistry and Physics 11, n.º 14 (20 de julio de 2011): 7001–26. http://dx.doi.org/10.5194/acp-11-7001-2011.
Texto completoTesis sobre el tema "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.
Texto completoLeshin, 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.
Texto completoSnover, 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.
Texto completoBurke, Roger Allen Jr. "Stable Hydrogen and Carbon Isotopic Compositions of Biogenic Methanes". Scholar Commons, 1985. https://scholarcommons.usf.edu/etd/7658.
Texto completoClog, Matthieu. "Concentration et composition isotopique en hydrogène du manteau terrestre". Paris 7, 2010. http://www.theses.fr/2010PA077209.
Texto completoConstraining the concentration and isotopic composition of hydrogen in Earth's mantle brings crucial insights on the global water cycle and the nature of mantle heterogeneities. For this purpose, glassy rims of basalts are the best samples. In this study, 170 samples from 4 oceanic ridges and 2 hotspots were analysed for water content and ô D. During this work, we showed that using platinum crucibles to extract the volatiles was the cause of an analytical bias in earlier data. The use of silicate tubes was thus prefered. δ D re-measured on samples previously analyzed using platinum crucibles are, on average, 15%o higher. The δ D and the H2O/Ce ratio are hétérogeneous, both between areas and locally, and caracterize the sources. The source of N-MORB contains 175+/-70 ppm of water and has a δ D of -61+/-6%o. MORB from the Altantic ocean are richer in water (-250 ppm in the source) and D ( δ D—57%o), than those from thé South-East Indian (H2O~140 ppm and δ DS\simS-63%o), illustrating different mixing processes, also seen through the Pb/Ce ratios. The study of the MORB from the South-West Indian ridge showed that δ D and H2O/Ce are sensitive to metasomatism. The concentrations of water in E-MORB and OIB sources are higher and more variable (from 250 to 700 ppm). The ô D of water- and incompatible elements-enriched sources range from -70 to -40%o, showing as much variations as depleted sources. Confrontation with the isotopic compositions of Ne, Pb, Sr and Nd shows that the resevoir containing the primitive rare gases cannot be water-rich, and is thus different from the FOZO. Therefore, efficient recycling of water with no modification of its isotopic composition in hydrogen at subdcution zone can occur at some subduction zones
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.
Texto completoDawson, Daniel. "Stable hydrogen isotope ratios of individual hydrocarbons in sediments and petroleum". Thesis, Curtin University, 2006. http://hdl.handle.net/20.500.11937/1237.
Texto completoDawson, 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.
Texto completoThe δD values of the n-alkanes also reflect their multiple source inputs. For example, a saw-toothed profile of n-alkane δD values in Australian torbanites is attributed to a dual-source system: a predominant B. braunii input, with a minor terrestrial plant input to odd-carbon-numbered n-alkanes in the range n-C20 [subscript] to n-C29 [subscript]. The δD values of n-alkanes and isoprenoids (pristane and phytane) differ significantly in two Permian torbanites from Australia, thought to be reflective of the offset between the δD values of their precursors in extant organisms. The torbanite data indicate that a biological δD signal has been preserved for at least 260–280 million years, extending the utility of δD values for palaeoclimate studies. To elucidate the effect of sedimentary processes on the δD values of petroleum hydrocarbons, three sedimentary sequences have been studied. These comprise one from the Perth Basin (Western Australia) and two from the Vulcan Sub-basin (northern Australia) covering a wide range of maturities, i.e. 0.53–1.6% vitrinite reflectance (Ro). The δD values of n-alkanes extracted from immature-early mature sediments (marine shales/siltstones and mudstones) are consistent with that expected of marine-derived n-alkyl lipids. The hydrocarbons become enriched in D with increasing maturity. The large (ca. 115%) biologically-derived offset between the δD values of n-alkanes and acyclic isoprenoids from immature sediments gradually decreases with increasing maturity, as the isoprenoids become enriched in D more rapidly than the n-alkanes. The D-enrichment in isoprenoids correlates strongly with Ro and traditional molecular maturity parameters.
This suggests that H/D exchange during maturation occurs via a mechanism involving carbocation-like intermediates, which proceeds more rapidly with compounds containing tertiary carbon centres. Significant epimerisation of pristane and phytane coincides with their D-enrichment, suggesting that hydrogen exchange occurs at their tertiary carbons. A mechanism is proposed which can account for both H/D exchange and the epimerisation of pristane and phytane in the sedimentary environment. Pristane and phytane extracted from a post-mature sediment from the Paqualin-1 sequence are significantly enriched in D (ca. 40%) relative to the n-alkanes, indicating that D-enrichment persists at very high maturity, and is more pronounced for the regular isoprenoids than the n-alkanes. This supports the notion that H/D exchange causes the observed shift in δD values, rather than free-radical hydrogen transfer. The differences between the δD values of pristane and phytane show opposite trends in the Perth Basin and Vulcan Sub-basin sediments. In the Perth Basin, phytane is enriched in D relative to pristane, likely due to a dominant algal source. In the Vulcan Sub-basin, pristane is enriched in D relative to phytane, and thus is attributed to a lower relative input of algal organic matter. The variance of the δD values of pristane and phytane is generally consistent throughout the maturity range and provides evidence that pristane and phytane exchange hydrogen at similar rates. δD analysis of crude oils and condensates reservoired in the Perth Basin and Vulcan Sub-basin has been carried out to evaluate potential applications in oil-source correlation.
The n-alkanes from crude oils and condensates are often more enriched in D than n-alkanes extracted from their supposed source rocks, and the oils also show relatively small differences between the δD values of n-alkanes and isoprenoids. These results suggest significant H/D exchange has occurred, implying that the liquids were generated from mature source rocks. A Perth Basin crude oil (Gage Roads-1) thought to be derived from a lacustrine/terrestrial source contains hydrocarbons that are significantly depleted in D relative to Perth Basin oils derived from a marine source, attributed to variability in the isotopic composition of marine and terrestrial source waters. δD values of n-alkanes from Vulcan Sub-basin crude oils and condensates are largely consistent with their prior classification into two groups: Group A, having a marine source affinity; and Group B, having a terrigenous source affinity. Some oils and condensates are suggested to be mixtures of Group A and Group B hydrocarbons, or Group A hydrocarbons and other as yet unknown sources. An exception is a former Group A oil (Tenacious-1) containing n-alkanes that are enriched in D relative to those from other Group A oils and condensates, attributed to mixing with another source of more mature hydrocarbons. The n-alkane δD profile appears to be indicative of source and sedimentary processes. One Perth Basin crude oil (Dongara-14) contains lower-molecular-weight n-alkanes that are depleted in D relative to higher-molecular-weight n-alkanes, attributed to a mixed marine/terrestrial source.
Group A crude oils and condensates from the Vulcan Sub-basin display a ‘bowl-shaped’ profile of n-alkane δD values. An upward inflection in the n-alkane δD profile from n-C11 [subscript] to n-C15 [subscript] is suggested to represent the addition of D-enriched lower-molecular-weight n-alkanes from a more mature wet gas/condensate to an initial charge of lower maturity oil. Ultimately, this project has demonstrated that the δD values of individual petroleum hydrocarbons can be used to elucidate the nature of source organic matter and depositional environments. The preservation potential of lipid δD values is greater than previously thought, although it is clear that H/D exchange accompanying maturation can have a significant effect on the δD values of certain hydrocarbons. Thus, great care must be taken when interpreting δD values of individual hydrocarbons, particularly those derived from sediments of high thermal maturity.
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/.
Texto completoJappy, 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.
Texto completoLibros sobre el tema "Hydrogen isotopic composition"
Martin, Whalen y 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. [Washington, DC: National Aeronautics and Space Administration, 1994.
Buscar texto completoMartin, Whalen y 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. [Washington, DC: National Aeronautics and Space Administration, 1994.
Buscar texto completoNational 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.
Buscar texto completoCapítulos de libros sobre el tema "Hydrogen isotopic composition"
Quesnel, Benoît, Christophe Scheffer y Georges Beaudoin. "The Light Stable Isotope (Hydrogen, Boron, Carbon, Nitrogen, Oxygen, Silicon, Sulfur) Composition of Orogenic Gold Deposits". En Isotopes in Economic Geology, Metallogenesis and Exploration, 283–328. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27897-6_10.
Texto completoHuston, David L., Robert B. Trumbull, Georges Beaudoin y Trevor Ireland. "Light Stable Isotopes (H, B, C, O and S) in Ore Studies—Methods, Theory, Applications and Uncertainties". En Isotopes in Economic Geology, Metallogenesis and Exploration, 209–44. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27897-6_8.
Texto completoFerronsky, V. I. y V. A. Polyakov. "Hydrogen and Oxygen Isotopic Composition of Groundwater in Volcanic Regions". En Isotopes of the Earth's Hydrosphere, 179–94. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2856-1_9.
Texto completoFerronsky, V. I. y V. A. Polyakov. "Hydrogen and Oxygen Isotopic Composition of Minerals of Magmatic and Metamorphic Rocks and Fluid Inclusions". En Isotopes of the Earth's Hydrosphere, 195–204. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2856-1_10.
Texto completoFerronsky, V. I. y V. A. Polyakov. "Hydrogen and Oxygen Isotopic Composition of Sedimentary Rocks of Marine Genesis and Implications for Paleothermometry". En Isotopes of the Earth's Hydrosphere, 155–78. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2856-1_8.
Texto completoAllen, Scott T., Matthias Sprenger, Gabriel J. Bowen y J. Renée Brooks. "Spatial and Temporal Variations in Plant Source Water: O and H Isotope Ratios from Precipitation to Xylem Water". En Stable Isotopes in Tree Rings, 501–35. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_18.
Texto completoAllen, Scott T., Matthias Sprenger, Gabriel J. Bowen y J. Renée Brooks. "Spatial and Temporal Variations in Plant Source Water: O and H Isotope Ratios from Precipitation to Xylem Water". En Stable Isotopes in Tree Rings, 501–35. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_18.
Texto completoBurke, Roger A. y William M. Sackett. "Stable Hydrogen and Carbon Isotopic Compositions of Biogenic Methanes from Several Shallow Aquatic Environments". En ACS Symposium Series, 297–313. Washington, DC: American Chemical Society, 1986. http://dx.doi.org/10.1021/bk-1986-0305.ch017.
Texto completoWright, I. P. "Stable Isotopic Compositions of Hydrogen, Carbon, Nitrogen, Oxygen and Sulfur in Meteoritic Low Temperature Condensates". En Ices in the Solar System, 221–49. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5418-2_15.
Texto completoWalker, James C. G. "How to Calculate Isotope Ratios". En Numerical Adventures with Geochemical Cycles. Oxford University Press, 1991. http://dx.doi.org/10.1093/oso/9780195045208.003.0008.
Texto completoActas de conferencias sobre el tema "Hydrogen isotopic composition"
Ahsan, Dr Syed Asif, Reem Ali Mabkhout AlSeiari, Dr Tamer Koksalan y 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". En Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/208211-ms.
Texto completoKeisling, Benjamin Andrew, Julie Brigham-Grette, Jeffrey M. Salacup y Isla S. Castañeda. "RECONSTRUCTING ARCTIC HYDROLOGY USING THE HYDROGEN ISOTOPIC COMPOSITION OF LEAF WAXES". En 51st Annual Northeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016ne-272670.
Texto completoDixon, Jacqueline, Ilya N. Bindeman y Richard Kingsley. "HYDROGEN ISOTOPIC COMPOSITION OF ENRICHED MANTLE SOURCES: RESOLVING THE DEHYDRATION PARADOX". En GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-298878.
Texto completoLehmann, Marco, Philipp Schuler, Valentina Vitali, Matthias Saurer, Marc-André Cormier y Guido Wiesenberg. "The hydrogen isotopic composition of plant carbohydrates – Advancement in methods and interpretation". En Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.9425.
Texto completoChikaraishi, Y. "Hydrogen Isotopic Composition of Fatty Acids, Sterols, and Phytol: Autotrophic Vs. Heterotrophic Production". En 29th International Meeting on Organic Geochemistry. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201902871.
Texto completoOgliore, Ryan, Gerardo Dominguez y Lauren Tafla. "Oxygen and Hydrogen Isotopic Composition of Zag Water Measured by Cavity Ring-down Spectroscopy". En Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.5438.
Texto completoHaettig, K., D. Varma, S. Schouten y M. T. J. Van der Meer. "LARGE REGIONAL GLACIAL-INTERGLACIAL CHANGES IN HYDROGEN ISOTOPIC COMPOSITION OF ALKENONES NEAR THE CHILEAN MARGIN". En 30th International Meeting on Organic Geochemistry (IMOG 2021). European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202134103.
Texto completoAPICELLA, M., V. VIOLANTE, F. SARTO, A. ROSADA, E. SANTORO, E. CASTAGNA, C. SIBILIA, M. MCKUBRE, F. TANZELLA y G. HUBLER. "PROGRESS ON THE STUDY OF ISOTOPIC COMPOSITION IN METALLIC THIN FILMS UNDERGONE TO ELECTROCHEMICAL LOADING OF HYDROGEN". En Proceedings of the 12th International Conference on Cold Fusion. WORLD SCIENTIFIC, 2006. http://dx.doi.org/10.1142/9789812772985_0026.
Texto completoMayorov, A. G. "MEASUREMENT OF THE ISOTOPIC COMPOSITION OF HYDROGEN AND HELIUM NUCLEI IN COSMIC RAYS WITH THE PAMELA-EXPERIMENT". En The 34th International Cosmic Ray Conference. Trieste, Italy: Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.236.0270.
Texto completoLaurinat, James E., Neal M. Askew y Steve J. Hensel. "Flammability Analysis for Actinide Oxides Packaged in 9975 Shipping Containers". En ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97478.
Texto completoInformes sobre el tema "Hydrogen isotopic composition"
Lacerda Silva, P., G. R. Chalmers, A. M. M. Bustin y 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.
Texto completoKingston, A. W., O. H. Ardakani, G. Scheffer, M. Nightingale, C. Hubert y 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.
Texto completoBoreham, C. J., L. Wang, J. Sohn, N. Jinadasa, Z. Hong, J. Chen, E. Grosjean y A. Jarrett. 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.
Texto completoLiseroudi, M. H., O. H. Ardakani, P. K. Pedersen, R. A. Stern, J M Wood y 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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