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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Cleat mineralization of Upper Permian Baralaba/Rangal Coal Measures, Bowen Basin, Australia
TL;DR: In this article, the authors investigated coal seams from the Permo-Triassic Bowen Basin using a variety of complementary analytical techniques, and found that the coal seams were about 1000m below the surface and at a temperature of between 70 and 80°C.
Journal ArticleDOI
Geology, fluid inclusion, and stable isotope systematics of the Dongyang epithermal gold deposit, Fujian Province, southeast China: Implications for ore genesis and mineral exploration
Su-Ning Li,Pei Ni,Tan Bao,Chang-Ze Li,Hong-Liang Xiang,Guo-Guang Wang,Bao Huang,Zhe Chi,Bao-Zhang Dai,Jun-Ying Ding +9 more
TL;DR: The Dongyang gold deposit as mentioned in this paper is a recently discovered large gold deposit located within the Dehua-Youxi-Yongtai mining camp in central-east Fujian Province, southeast China.
Journal ArticleDOI
Residence times of groundwater and nitrate transport in coastal aquifer systems: Daweijia area, northeastern China
TL;DR: The binary exponential and piston-flow mixing model (BEP) yielded feasible age distributions based on the conceptual model, and the good inverse relationship between groundwater MRTs and the NO3(-) concentrations in the shallow Quaternary aquifers indicates that elevated nitrate concentrations are attributable to more recent recharge for shallow groundwater.
Journal ArticleDOI
Isotope geochemistry of stratified Lake "A," Ellesmere Island, N.W.T., Canada
TL;DR: Ionic composition, salinity, temperature, pH, tritium, and stable isotope compositions of water and ions were determined for samples collected in 1969 and 1982 from different depths of stratified Lake "A" on Ellesmere Island as mentioned in this paper.
Journal ArticleDOI
Isotope and ion geochemistry of groundwaters in the Milk River Aquifer, Alberta
TL;DR: The Milk River artesian aquifer as discussed by the authors is an area of approximately 6300 km2 in southern Alberta, and it is believed that major recharge occurs in these areas (Meyboom, 1960).
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.