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
Citations
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Flow path depth is the main controller of mean base flow transit times in a mountainous catchment
Yuko Asano,Taro Uchida +1 more
TL;DR: In this paper, the authors used isotopic and geochemical tracer data gathered in the 4.27 km2 Fudoji catchment, central Japan, to investigate the relationship between topography and MTT.
Journal ArticleDOI
The fluid geochemistry of Icelandic high temperature geothermal areas
TL;DR: In this article, the chemistry of fluids from twenty-four Icelandic high temperature geothermal systems is considered, of which three are submarine and seven subglacial, and the fluid in the three submarine areas are relatively saline but to a differing extent mixed with groundwater.
Journal ArticleDOI
Groundwater nitrate pollution in Souss-Massa basin (south-west Morocco)
TL;DR: In this paper, a multiapproach methodology using hydrogeology, nitrate concentrations, irrigation type and oxygen-18 and deuterium data, was carried out to identify the sources of this pollution.
Journal ArticleDOI
Deuterium content of peat as a paleoclimatic recorder.
TL;DR: From this relationship the original deuterium content of the plants that formed the peat in Dutch peat bogs can be derived, and the values obtained can be correlated with past summer temperatures in the Netherlands.
Journal ArticleDOI
Pressure solution and hydrothermal recrystallization of carbonate sediments — an experimental study — reply
TL;DR: In this paper, the extent of calcite recrystallization was determined in pressure-solution and hydrothermal experiments which were conducted on deep-sea carbonates of low Mg calcite, Iceland spar, and reagent-grade calcite powder.
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.