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
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Distribution of stable isotopes in surface snow along the route of the 1990 International Trans-Antarctica Expedition
TL;DR: In this article, the authors presented the distribution of average OD and 6 18 0 values for the top 1 m of surface snow for a large area of Antarctica, collected on the 1990 International Trans-Antarctica Expedition which crossed the continent from the northern tip of the Antarctic Peninsula to Mirny Station.
Journal ArticleDOI
Oxygen and carbon isotope measurements of land snail shell carbonate
TL;DR: In this paper, the δ18O values of the waters assumed to be in isotopic equilibrium with the shell carbonate were calculated and the results indicated that these ambient waters have undergone isotopic steady-state evaporation.
Journal ArticleDOI
Oxygen isotope cosmothermometer
TL;DR: In this paper, a model involving isotopic exchange between primordial dust and a cooling solar nebular gas is discussed in terms of variations in oxygen isotopic abundances of meteoritic minerals, chondrules, whole meteorites and planets.
Journal ArticleDOI
The geographic origins of Nasca trophy heads using strontium, oxygen, and carbon isotope data
TL;DR: In this article, Strontium, oxygen, and carbon isotope data from archaeological human tooth enamel from Nasca trophy heads from Aja, Cahuachi, Cantayo, Majoro Chico and Paredones, and from individuals buried in Nasca cemeteries at Cahuachina, Chico, and Majorco Chico elucidate the geographic origins and paleodiet of trophy heads in the Nazca Drainage.
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Oxygen and hydrogen isotope studies of contact metamorphism in the Santa Rosa Range, Nevada and other areas
TL;DR: The O18/O16 and D/H ratios have been determined for rocks and coexisting minerals from several granitic plutons and their contact metamorphic aureoles in the Santa Rosa Range, Nevada, and the Eldora area, Colorado, with emphasis on pelitic rocks as mentioned in this paper.
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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.