| | |
Summary: IAEA-CN-80/29
EXCESS AIR IN GROUNDWATER AS A POTENTIAL INDICATOR
OF PAST ENVIRONMENTAL CHANGES
W. AESCHBACH-HERTIG1
, U. BEYERLE2
, J. HOLOCHER, F. PEETERS, R. KIPFER3
Water Resources and Drinking Water,
Swiss Federal Institute of Environmental Science and Technology (EAWAG),
Dübendorf, Switzerland
Also affiliated with:
1
Environmental Physics, Swiss Federal Institute of Technology (ETH), Zürich, Switzerland
2
Physics Institute, University of Berne, Berne, Switzerland
3
Isotope Geology, Swiss Federal Institute of Technology (ETH), Zürich, Switzerland
Abstract. Dissolved noble gases in groundwater are used to reconstruct paleotemperature, but also
yield information about "excess air", a component of dissolved gases in excess of solubility
equilibrium, derived from dissolution of trapped air in the ground. A good characterization of the
excess air component is necessary not only to obtain reliable noble gas temperatures, but also to
|
