KOPS - Das Institutionelle Repositorium der Universität Konstanz

Noble gas and major element constraints on the water dynamics in an alpine floodplain

Noble gas and major element constraints on the water dynamics in an alpine floodplain

Zitieren

Dateien zu dieser Ressource

Prüfsumme: MD5:975a5badca7c00e575e61c3358ec46b8

HOLOCHER, Johannes, Vijay MATTA, Werner AESCHBACH-HERTIG, Urs BEYERLE, Markus HOFER, Frank PEETERS, Rolf KIPFER, 2001. Noble gas and major element constraints on the water dynamics in an alpine floodplain. In: Ground Water. 39(6), pp. 841-852. eISSN 0017-467X. Available under: doi: 10.1111/j.1745-6584.2001.tb02472.x

@article{Holocher2001Noble-8099, title={Noble gas and major element constraints on the water dynamics in an alpine floodplain}, year={2001}, doi={10.1111/j.1745-6584.2001.tb02472.x}, number={6}, volume={39}, journal={Ground Water}, pages={841--852}, author={Holocher, Johannes and Matta, Vijay and Aeschbach-Hertig, Werner and Beyerle, Urs and Hofer, Markus and Peeters, Frank and Kipfer, Rolf} }

2011-03-24T17:39:55Z application/pdf Holocher, Johannes Kipfer, Rolf Peeters, Frank Matta, Vijay Hofer, Markus Peeters, Frank Kipfer, Rolf 2001 Beyerle, Urs 2011-03-24T17:39:55Z eng The hydrogeological system of an ecologically sensitive alpine floodplain in the Valle di Blenio, Switzerland, was investigated using hydrochemical and 3H-3He dating methods. Water samples from six wells and from different surface locations were analyzed. The analysis of the concentrations of major ions in conjunction with age determination by the 3H-3He-method allowed the main hydrological properties of the system to be consistently characterized. Two geochemically distinct water zones can be distinguished: Ca-S04-dominated water from the main river and Ca-HC03-dominated floodplain water. The floodplain water component characterizes the whole floodplain including the surficial hillslope drainage system. Within the ground water samples, two spatially and temporally different types of water can be determined. A younger (age < 1.5 years), less mineralized water is found in the upper part of the aquifer during the summer season. The underlying aquifer zone contains older and more highly mineralized water. However, the general hydrochemical characterization of both types of ground water is similar. In winter, the water ages increase with decreasing ground water levels. Because precipitation is stored temporarily in the snow cover, the contribution of the younger near-surface ground water decreases, resulting in higher apparent water ages and higher mineralization in the upper zone of the aquifer. Water exchange between the main river and the ground water system is limited to ground water exfiltration from the shallow aquifer zone, whereas the hydrochemical separation ofthe deeper aquifer zone indicates the isolation of the deeper ground water from the main river. Holocher, Johannes First publ. in: Ground Water 39 (2001), 6, pp. 841-852 Beyerle, Urs Aeschbach-Hertig, Werner deposit-license Aeschbach-Hertig, Werner Hofer, Markus Matta, Vijay Noble gas and major element constraints on the water dynamics in an alpine floodplain

Das Dokument erscheint in:

deposit-license Solange nicht anders angezeigt, wird die Lizenz wie folgt beschrieben: deposit-license

KOPS Suche


Stöbern

Mein Benutzerkonto