河北平原浅层含水层氪-85定年

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2016-12-01 DOI:10.26599/jgse.2016.9280037

Xiang-yang Zhang, Zongyong Chen, Guo‐Min Yang, L. Tu, Shui-Ming Hu

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引用次数: 0

摘要

惰性气体放射性同位素Kr(半衰期为10.74年)由于其稳定的物理和化学性质，是浅层地下水测年的理想示踪剂。在这种测年应用中，首先从现场地下水中提取溶解气体，然后从气体样品中分离氪，最后用ATTA仪器测定同位素丰度Kr/Kr。根据氪的大气输入曲线，确定了地下水的氪年龄。对太行山前平原正定县3口井进行了氪分析，并与氚(H)法进行了比较。

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Krypton-85 dating of shallow aquifer in Hebei Plain

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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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.