@Article{Vogel_etal1981, author="Vogel, J. C. and Talma, A. S. and Heaton, T. H. E.", title="Gaseous nitrogen as evidence for denitrification in groundwater", journal="Journal of Hydrology", year="1981", volume="50", pages="191--200", abstract="By investigating the nitrate, oxygen, nitrogen and argon concentrations and 15N14N ratios in artesian groundwater with radiocarbon ages ranging up to 27,000 yr. a process of very slow denitrification in a confined aquifer is demonstrated. The calculated nitrogenisotope fractionation factor associated with this reaction is comparable to that reported for bacterial cultures in vitro and in vivo.", optnote="exported from refbase (http://www.uhydro.de/base/show.php?record=280), last updated on Fri, 02 Feb 2024 13:01:10 +0100", issn="0022-1694", opturl="https://www.sciencedirect.com/science/article/pii/002216948190069X" }