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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Assessing meteoric water composition and relative humidity from18O and2H in wood cellulose: paleoclimatic implications for southern Ontario, Canada
Thomas W. D. Edwards,Peter Fritz +1 more
TL;DR: In this paper, an empirical model is presented that derives the initial isotopic composition of water used by terrestrial plants and the relative humidity that prevailed during photosynthesis from the isotopic compositions of oxygen and carbon-bound hydrogen in the plant cellulose.
Journal ArticleDOI
Low-temperature alteration of volcanic glass: Hydration, Na, K, 18O and Ar mobility
TL;DR: In this article, the age of volcanic glass by meteoric water has been investigated and it was shown that the high degree of alkali mobility during this alteration process affects the KAr age dating method.
Journal ArticleDOI
Geochemical and isotopic evidence for palaeo-seawater intrusion into the south coast aquifer of Laizhou Bay, China
TL;DR: Li et al. as discussed by the authors improved the current knowledge of groundwater salinisation processes in coastal aquifers using combined hydrochemical and isotopic parameters and inverse hydrochemical modelling. But their work was limited to three sampling campaigns along a vertical transect in the ChangyiLiutuan area, 95 ground and surface-water samples were collected for major ion and isotope analysis.
Journal ArticleDOI
A reexamination of cellulose carbon-bound hydrogen δD measurements and some factors affecting plant-water D/H relationships☆
Crayton J. Yapp,Samuel Epstein +1 more
TL;DR: In this article, a modified version of the renitration method was used for the analysis of cellulose carbon-bound hydrogen and the results confirmed the conclusion of Epstein et al. that the δD variations of the source water are the dominant control of the cellulose C-H hydrogen from naturally grown plants.
Journal ArticleDOI
Biologic and climatic signals in the oxygen isotopic composition of Eocene-Oligocene equid enamel phosphate
TL;DR: Oxygen isotope results for tooth enamel-phosphate (δP) from late Eocene-early Oligocene fossil horses are presented to determine if paleobiologic and paleoclimatologic information is recorded in fossil tooth chemistry.
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.