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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Beggiatoa in microbial mats at hydrocarbon vents in the Gulf of Mexico and Warm Mineral Springs, Florida
TL;DR: In this article, the authors collected microbial mats from a variety of sites near hydrocarbon vents along the slope in the northern Gulf of Mexico and, for comparison, from Warm Mineral Springs, Florida, USA.
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The genetics of water-use efficiency and its relation to growth in maritime pine
Elisa Marguerit,Laurent Bouffier,Emilie Chancerel,Emilie Chancerel,Paolo Costa,Paolo Costa,Frédéric Lagane,Frédéric Lagane,Jean-Marc Guehl,Christophe Plomion,Christophe Plomion,Oliver Brendel,Oliver Brendel +12 more
TL;DR: It is shown that higher WUE was not genetically linked to less growth, allowing thus genetic improvement of water use, and the heritability and QTL effects estimated here are based on the highest number of genotypes measured to date.
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Experimental observations on fungal diagenesis of carbonate substrates
TL;DR: In a 15-day experimental study, fungi growing in Petri dishes from airborne spores attacked petrographic thin sections and chips prepared from the dolomites of Terwagne Formation (Visean, Bocahut quarry at Avesnes-sur-Helpe, northern France) and limestones of the Morrone di Pacentro Formation (Lower Cretaceous, Italy).
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Growth controls in colloform pyrite
Craig D. Barrie,Adrian J. Boyce,Alan P. Boyle,Patrick J. Williams,Kevin Blake,Takahiko Ogawara,Junji Akai,David J. Prior +7 more
TL;DR: In this article, the growth controls that influence formation of primary colloform textures are poorly understood, and samples from two ore deposits, Greens Creek in Alaska and Ezuri in Japan, have been systematically analyzed for grain size and shape, crystal preferred orientation (CPO), sulfur isotope composition, and trace element content.
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Theoretical estimates of equilibrium sulfur isotope effects in aqueous sulfur systems: Highlighting the role of isomers in the sulfite and sulfoxylate systems
TL;DR: In this article, the B3LYP/6-31+G(d,p) level of theory was used to estimate equilibrium fractionation factors for aqueous sulfur compounds.
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.