Xiang-yang Zhang, Zongyong Chen, Guo‐Min Yang, L. Tu, Shui-Ming Hu
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引用次数: 0
Abstract
The inert gas radioactive isotope Kr (with a half-life of 10.74 years), due to its stable physical and chemical properties, is an ideal tracer for shallow groundwater dating. In such a dating application, first the dissolved gas is extracted from groundwater in the field, then krypton is separated from the gas sample, and finally the isotopic abundance Kr/Kr will be determined by an ATTA instrument. According to the atmospheric input curve of Kr, the Kr age of groundwater is determined. We conducted Kr analysis in three wells in Zhengding County on the plains in front of the Taihang Mountains, and made a comparison with tritium (H) method.
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