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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Natural isotopes in the groundwater of the tulúm valley, san juan, argentina
TL;DR: The groundwater in the Tulum Valley of Western Central Argentina is mainly recharged by water from the San Juan River as mentioned in this paper, and isotope and hydrogeological investigations of the region lead to this conclusion.
Journal ArticleDOI
Fallout and climate studies on firn cores from carrefour, greenland.
W. Ambach,W. Dansgaard +1 more
Journal ArticleDOI
Meteoric water participation in the genesis of Jurassic cherts in the Subbetic of southern Spain — a significant indicator of penecontemporaneous emergence
TL;DR: In this article, the authors investigated the role of meteoric water in the formation of the Camarena Formation in the Betic Cordillera in the mid-Jurassic.
Journal ArticleDOI
Characterization of the main karst aquifers of the Tezbent Plateau, Tebessa Region, Northeast of Algeria, based on hydrogeochemical and isotopic data
TL;DR: In this article, chemical properties and hydrogeological characterization of water resources were studied in the Hammemt plain, which is located in the northwest of the Tezbent mountain range, City of Tebessa, northeast of Algeria, which drains carbonate aquifers through various large karst springs.
Heterogeneities in the solar nebula.
TL;DR: In this article, the high-temperature phases in carbonaceous chondrites define a mixing line with an 0-16-rich component and show little superimposed chemical isotope fractionation.
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.