TY - JOUR
T1 - Tritium/3He dating of shallow groundwater
AU - Schlosser, Peter
AU - Stute, Martin
AU - Dörr, Helmut
AU - Sonntag, Christian
AU - Münnich, Karl Otto
N1 - Funding Information:
We are grateful to Reinhold Bayer for his help in various aspects of the experimental procedures. F. Begemann, E. Mazor and an anonymous reviewer gave helpful comments on the manuscript. G. Zimmek performed part of the 3He measurements. This work was supported by the Deutsche Forschungsgemeinscha ft.
PY - 1988/8
Y1 - 1988/8
N2 - Combined tritium/3He data from three multi-level sampling wells (DFG 1, DFG 4, DFG 7) located at Liedern/ Bocholt, West Germany, are presented and principles of the tritium/3He method in shallow groundwater studies are discussed. The 3He excess produced by radioactive decay of bomb tritium (released mainly between 1952 and 1963) is clearly reflected in the data. The tritiogenic 3He signal can be detected with a good resolution (signal/1σ error: ≈ 350). The confinement of the tritiogenic 3He is estimated to approximately 77-85% at site DFG 4. For the bomb tritium peak the deviation of the tritium/3He age from the age determined by identifying the groundwater layer recharged between 1962 and 1965 is about 3 years (15%). The deviation can be explained by diffusive 3He loss across the groundwater table and by flow dispersion.
AB - Combined tritium/3He data from three multi-level sampling wells (DFG 1, DFG 4, DFG 7) located at Liedern/ Bocholt, West Germany, are presented and principles of the tritium/3He method in shallow groundwater studies are discussed. The 3He excess produced by radioactive decay of bomb tritium (released mainly between 1952 and 1963) is clearly reflected in the data. The tritiogenic 3He signal can be detected with a good resolution (signal/1σ error: ≈ 350). The confinement of the tritiogenic 3He is estimated to approximately 77-85% at site DFG 4. For the bomb tritium peak the deviation of the tritium/3He age from the age determined by identifying the groundwater layer recharged between 1962 and 1965 is about 3 years (15%). The deviation can be explained by diffusive 3He loss across the groundwater table and by flow dispersion.
UR - http://www.scopus.com/inward/record.url?scp=0024228344&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024228344&partnerID=8YFLogxK
U2 - 10.1016/0012-821X(88)90122-7
DO - 10.1016/0012-821X(88)90122-7
M3 - Article
AN - SCOPUS:0024228344
SN - 0012-821X
VL - 89
SP - 353
EP - 362
JO - Earth and Planetary Science Letters
JF - Earth and Planetary Science Letters
IS - 3-4
ER -