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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Structure et fonctionnement d'un hydrosystème karstique de montagne sous climat semi-aride: cas de l'Atlas de Beni-Mellal (Maroc)
TL;DR: In this paper, a caractere karstique (Atlas et piemont) of the aquifere atlas de Beni Mellal is characterized, a result that permits the delimitation of the bordure septentrionale de l'Atlas de Bani Mellal.
Journal ArticleDOI
A novel method for tracing coastal water masses using Sr/Ca ratios and salinity in Nanwan Bay, southern Taiwan
TL;DR: In this article, a new method using two tracers, namely, the high-precision Sr/Ca ratio and salinity, has been successfully applied to quantitative determination of mixing proportions of freshwater, intruding surface seawater and upwelled water in a semi-enclosed bay, Nanwan Bay, southern Taiwan, where strong upwelling is induced by tidal forcing.
Journal ArticleDOI
Release of mantle and crustal helium from a fault following an inland earthquake
TL;DR: In this article, the spatial and temporal changes of 3He/4He ratios around a source region before and after an inland earthquake using both existing and new and helium isotope data from hot spring and drinking water wells were investigated.
Journal ArticleDOI
Chemical and isotopic constraints on the origin of saline waters from a hot spring in the eastern coastal area of China
TL;DR: In this article, a systematic investigation of the hydrochemistry and isotopes (δ11B, 87Sr/86Sr and δ18O, δD, 13CDIC and 14CDIC) of water from 14 geothermal wells was conducted.
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.