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    Article

    Continental degassing of 4He by surficial discharge of deep groundwater

    Helium-4 is produced in the Earth’s crust and degassed to the atmosphere. Measurements of 4He and 81Kr dating in an aquifer in Brazil suggest that most crustal 4He reaches the atmosphere by the discharge of deep ...

    Pradeep K. Aggarwal, Takuya Matsumoto, Neil C. Sturchio, Hung K. Chang… in Nature Geoscience (2015)

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    Chapter

    Isotopic Tracing of Perchlorate in the Environment

    Isotopic measurements can be used for tracing the sources and behavior of environmental contaminants. Perchlorate (ClO 4 − ) has been detected widely in groundwater, soils, fertilizers, plants, milk, and human ur...

    Neil C. Sturchio, John Karl Böhlke… in Handbook of Environmental Isotope Geochemi… (2012)

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    Chapter

    Stable Isotopic Composition of Chlorine and Oxygen in Synthetic and Natural Perchlorate

    Neil C. Sturchio, J. K. Böhlke, Baohua Gu, Juske Horita, Gilbert M. Brown… in Perchlorate (2006)