Journal ArticleDOI
Isotopic standards for carbon and oxygen and correction factors for mass-spectrometric analysis of carbon dioxide
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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.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1957-01-01. It has received 4071 citations till now. The article focuses on the topics: Carbon & Carbon dioxide.read more
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The measuring procedure and corrections for the high-precision mass-spectrometric analysis of isotopic abundance ratios, especially referring to carbon, oxygen and nitrogen
W.G. Mook,P. M. Grootes +1 more
TL;DR: In this paper, the effect of gas inlet pressure on the voltage ratio in the case of nitrogen and carbon dioxide is determined experimentally, using a Varian M86, and the corrections are discussed successively in the order in which they are to be applied.
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Origin and Distribution of Carbon Dioxide in the Unsaturated Zone of the Southern High Plains of Texas
TL;DR: Partial pressures of CO2, O2, N2, and Ar were monitored at two locations in the Ogallala aquifer system on the Southern High Plains of Texas as discussed by the authors.
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Paleotemperatures and chlorinities from stable carbon and oxygen isotopes in shell carbonate
TL;DR: In this article, a procedure is proposed by which meaningful water temperatures can be derived from the carbon and oxygen isotopic composition of shell carbonate, even if the habitat of the shell animals is not purely marine as in the case of estuaries or brackish coastal waters.
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Interactions between metals and soil organic matter in various particle size fractions of soil contaminated with waste water
TL;DR: In this article, the authors investigated the interactions of four metals (Pb, Zn, Cu and Cd) with the organic matter (SOM) associated to five different size fractions (between 2000 µm and <2 µm) of a sandy top soil contaminated by waste water.
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Quantification of organic pollutant degradation in contaminated aquifers using compound specific stable isotope analysis – Review of recent developments
TL;DR: In this paper, the advantages and limitations of the Rayleigh equation approach for quantifying in situ degradation of organic pollutants in contaminated aquifers are discussed and suggestions for improvements are given.
References
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Journal ArticleDOI
On the Isotopic Chemistry of Carbonates and a Paleotemperature Scale
TL;DR: In this paper, the temperature variation of the fractionation of oxygen in exchange reactions between dissolved carbonate and water and between calcite and water was calculated on theoretical grounds, and checked experimentally.
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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.
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Revised carbonate-water isotopic temperature scale
TL;DR: The relationship between temperature and O(18) content relative to that for a Cretaceous belemnite of the Pee Dee formation previously reported (Epstein, Buchsbaum, Lowenstam, and Urey, 1951) has been re-determined using modified procedures for removing organic matter from shells, and is found to be 16.5 - 4.3 δ + 0.14 δ^2
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The geochemistry of the stable carbon isotopes
TL;DR: A survey of the variation of the ratio C13/C12 in nature can be found in this paper, where Urey and his co-workers used two complete feed systems with magnetic switching to determine small differences in isotope ratios between samples and a standard gas.