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
Production, isotopic composition, and atmospheric fate of biologically produced nitrous oxide
Lisa Y. Stein,Yuk L. Yung +1 more
TL;DR: In this paper, a review summarizes mechanisms that lead to biological N2O production and how discriminate placement of 15N into molecules of N 2O occurs, through direct measurements and atmospheric modeling, we can now place a constraint on the isotopic composition of biological sources of N2Os and trace its fate in the atmosphere.
Book ChapterDOI
Stable Isotopes of Fresh and Saline Lakes
TL;DR: The enrichment of the heavy isotopic species (H2 18O and HDO) in surface waters and lakes was already observed during the early surveys of stable isotope variations in the hydrological cycle as mentioned in this paper.
Journal ArticleDOI
The effects of subsurface boiling and dilution on the isotopic compositions of Yellowstone thermal waters
TL;DR: In this paper, the differences in chloride, oxygen 18, and deuterium between surface and deep thermal waters have been calculated for single-stage (in which steam remains mixed with water and separates near a single temperature) and continuous steam separation.
Journal ArticleDOI
Three-component tracer model for stormflow on a small Appalachian forested catchment
TL;DR: In this paper, a three-component 18 O tracer model recognizing contributions of groundwater, soil water and channel precipitation was used to represent stormflow in Fish Run, a small Appalachian Plateau forest stream.
Journal Article
Experimental hydrogen isotope studies: hydrogen isotope exchange between amphibole and water
TL;DR: In this paper, the authors have shown that amphibole hydrogen isotope fractionation is independent of temperature from 350 to 650"C and is described by the expression 1000 ln a1","--11,6 : -21.7t2i above 650'C.
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.