Journal ArticleDOI
Isotopic standards for carbon and oxygen and correction factors for mass-spectrometric analysis of carbon dioxide
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TLDR
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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Absolute18O content of standard mean ocean water
TL;DR: The absolute values of the 18 O/16 O ratio (R s ) and the relative 18 O content ( X s ) in SMOW have been determined by comparing SMOW mass spectrometrically with well-defined synthetic mixtures of pure D 2 18 O and H 2 16 O as discussed by the authors.
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Methane-derived carbonates and authigenic pyrite from the northwestern Black Sea
Jörn Peckmann,Andreas Reimer,U Luth,C Luth,Bent T. Hansen,C Heinicke,J. Hoefs,Joachim Reitner +7 more
TL;DR: In this paper, the deformation of carbonate and pyrite precipitates in the northwestern Black Sea are accompanied by micro-crystalline carbonates and aragonitic cements.
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Molecular structure and composition of fish otoliths
TL;DR: Oxygen and carbon isotope data indicate that the aragonite is formed close to isotopic equilibrium with the sea, which is surprising, because seawater has no direct access to the inner ear where the otolith orginates.
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Impact of drought on productivity and water use efficiency in 29 genotypes of Populus deltoides×Populus nigra
Romain Monclus,Romain Monclus,Erwin Dreyer,Marc Villar,Francis M. Delmotte,Didier Delay,Jean-Michel Petit,Cécile Barbaroux,Didier Le Thiec,Claude Brechet,Franck Brignolas +10 more
TL;DR: The ability to increase WUE in response to water deficit was necessary but not sufficient to explain the genotypic diversity of drought tolerance, and Delta scaled negatively with Wi and positively with stomatal conductance under moderate drought, suggesting that the diversity for Delta was mainly driven by stomatic conductance.
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.