globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL061120
论文题名:
Groundwater dating with Atom Trap Trace Analysis of39Ar
作者: Ritterbusch F.; Ebser S.; Welte J.; Reichel T.; Kersting A.; Purtschert R.; Aeschbach-Hertig W.; Oberthaler M.K.
刊名: Geophysical Research Letters
ISSN: 0094-9726
EISSN: 1944-9457
出版年: 2014
卷: 41, 期:19
起始页码: 6758
结束页码: 6764
语种: 英语
英文关键词: Argon-39 ; Atom Trap Trace Analysis ; ATTA ; dating ; LLC ; Low-Level Counting
Scopus关键词: Argon ; Atoms ; Groundwater ; Isotopes ; Atom trap ; ATTA ; dating ; LLC ; Low-level counting ; Trace analysis ; argon ; concentration (composition) ; dating method ; gas chromatography ; geophysical method ; groundwater ; isotopic analysis
英文摘要: We report on the realization of Atom Trap Trace Analysis for39Ar and its first application to dating of groundwater samples. The presented system achieves an atmospheric39Ar count rate as high as 3.58 ± 0.10 atoms/h allowing for the determination of the39Ar concentration in less than a day. We demonstrate that the measured count rates are proportional to the39Ar concentration by intercomparison with Low-Level Counting results and by measurements on prepared argon samples with defined concentration. For a geophysical application, we degas three different groundwater samples and gas chromatographically extract the argon. The39Ar ages inferred from the count rates extend over the accessible dating range and are in agreement with the Low-Level Counting results as well as with complementary isotope data. Key Points First dating of groundwater with Atom Trap Trace Analysis of Argon-39Argon-39-ATTA has the potential for Argon-39 analysis of small water and ice samples ©2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911164497&doi=10.1002%2f2014GL061120&partnerID=40&md5=66ae0a0f41ed5417d018e518f23da0c7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6990
Appears in Collections:气候减缓与适应

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作者单位: Kirchhoff-Institute for Physics, Heidelberg University, Heidelberg, Germany

Recommended Citation:
Ritterbusch F.,Ebser S.,Welte J.,et al. Groundwater dating with Atom Trap Trace Analysis of39Ar[J]. Geophysical Research Letters,2014-01-01,41(19).
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