Journal ArticleDOI
Standard for Reporting Concentrations of Deuterium and Oxygen-18 in Natural Waters.
TLDR
A standard, based on the set of ocean water samples used by Epstein and Mayeda to obtain a reference standard for oxygen-18 data, but defined relative to the National Bureau of Standards isotopic reference water sample, is proposed for reporting both deuterium and oxygen- 18 variations in natural watersrelative to the same water.Abstract:
A standard, based on the set of ocean water samples used by Epstein and Mayeda to obtain a reference standard for oxygen-18 data, but defined relative to the National Bureau of Standards isotopic reference water sample, is proposed for reporting both deuterium and oxygen-18 variations in natural waters relative to the same water. The range of absolute concentrations of both isotopes in meteoric-waters is discussed.read more
Citations
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Journal ArticleDOI
The oxygen and carbon isotope distribution in the Mediterranean water masses
TL;DR: In this paper, the authors measured the oxygen and carbon stable isotope compositions of the present-day Mediterranean waters in order to evaluate their variability, which is related to the specific climatic and hydrological conditions within the basin.
Journal ArticleDOI
Oxygen isotope study of a Precambrian banded iron-formation, Hamersley Range, Western Australia
TL;DR: Oxygen isotope ratios were determined for quartz, magnetite, ankerite, siderite, riebeckite, hematite and talc in samples of banded iron-formation from the Dales Gorge Member of the Brockman Iron Formation.
Journal ArticleDOI
Biogeochemistry of the stable isotopes of hydrogen and carbon in salt marsh biota.
Bruce N. Smith,Samuel Epstein +1 more
TL;DR: Data suggest that different mechanisms for carbon fixation result in different fractionations of the carbon isotopes, and apparently different metabolic processes are responsible for the different degrees of fractionation observed for hydrogen and carbon isotope.
Journal ArticleDOI
Climatic changes, Norsemen and modern man
Willi Dansgaard,Sigfus J Johnsen,Niels Reeh,Niels S. Gundestrup,Henrik Clausen,Claus U. Hammer +5 more
TL;DR: Oxygen isotope analysis of anew ice core from the crest of the Greenland ice sheet reveals a climatic record of the past 1,420 years as mentioned in this paper, which suggests a strong climatic impact, and a parallel is drawn to the present critical situation of the human society.
References
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Journal ArticleDOI
Isotopic Variations in Meteoric Waters
TL;DR: The relationship between deuterium and oxygen-18 concentrations in natural meteoric waters from many parts of the world has been determined with a mass spectrometer and shows a linear correlation over the entire range for waters which have not undergone excessive evaporation.
Journal ArticleDOI
Isotopic standards for carbon and oxygen and correction factors for mass-spectrometric analysis of carbon dioxide
TL;DR: In this paper, Niee's and Solenhofen standards were compared to the Chicago PDB standard for carbon and oxygen isotope ratios, and the correction factors for instrumental effects and for the nature of the mass spectra were derived.
Journal ArticleDOI
Variation of O18 content of waters from natural sources
S Epstein,Toshiko K. Mayeda +1 more
TL;DR: A number of marine water and fresh water samples were examined for the relative O18O16 ratio, and the variation of this ratio was determined to a precision of ± 1% as mentioned in this paper.
Journal ArticleDOI
Effect of Low Concentrations of Carbon Dioxide on Photosynthesis Rates of Two Races of Oxyria.
TL;DR: Alpine plants of Oxyria digyna have higher apparent photosynthesis rates at various carbon dioxide concentrations than arctic, sea-level plants of the same species, which may be involved in the survival of plants at high elevations.