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A comment on bHelium sources in passive margin aquifers--new evidence for a significant mantle 3
 

Summary: Discussion
A comment on bHelium sources in passive margin aquifers--new
evidence for a significant mantle 3
He source in aquifers with
unexpectedly low in situ 3
He/4
He productionQ by M. C. Castro
[Earth Planet. Sci. Lett. 222 (2004) 897­913]
W. Aeschbach-Hertig *
Institute of Environmental Physics, University of Heidelberg, Germany Im Neuenheimer Feld 229 D-69120 Heidelberg, Germany
Received 7 June 2005; received in revised form 22 September 2005; accepted 22 September 2005
Available online 28 October 2005
Editor: K. Farley
In a recent article, M.C. Castro [1] uses a numerical
groundwater model to study the transport of He isotopes
in the Carrizo aquifer, Texas. The main result is that an
unexpectedly large mantle 3
He component is present in
this system, masked by the in situ produced He with a
very low 3

  

Source: Aeschbach-Hertig, Werner - Institut für Umweltphysik, Universität Heidelberg

 

Collections: Geosciences; Environmental Sciences and Ecology