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Dating speleothems from the Silberen cave system and surrounding areas : speleogenesis in the Muota Valley (Central Switzerland)

Pure and applied karst geomorphology

Auteur(s) et Affiliation(s)

Hölloch Cave Research Association AGH, Zürich, Suisse
GEYH, M.A.
Univ., Marburg, Allemagne
Swiss Inst. of Speleology and Karst Studies SISKA, La Chaux-de-Fonds, Suisse
HELLER, F.
Inst. of Geophysics, ETH, Zurich, Suisse
PLOETZE, M.
Inst. for Geotechnical Engineering, ETH, Zürich, Suisse
DE WAELE, J.
Dep. of Earth Sciences and Environmental Geology, Italian Inst. of Speleology, Univ., Bologna, Italie
FILIPPONI, M.
Swiss Federal Inst of Technology (EPFL), Lausanne, Suisse
Dep. of Earth Sciences, Univ., Zaragoza, Espagne
PARISE, M.
National Research Council - Inst. of Research for the Hydrogeological Protection, Italie
PLAN, L.
Natural History Museum, Karst and Cave, Vienna, Autriche


Description :
Inactive stalagmites from the Silberen cave system and its surroundings (Muota Valley, Central Switzerland) have been dated by the 230Th/U method (alpha spectrometry and TIMS). The following complementary dating methods were applied : 234U/238U, paleomagnetism, palynology and electron spin resonance. Discussion of the results. The uplift rate of the mountains, the corrosion rate of the karstified surface and the incision of the valley bottom, suggest that karstification started 4 to 3 Ma (Middle to Upper Pliocene). The dated speleothems are therefore substantially younger than the beginning of speleogenesis.


Type de document :
Article de monographie

Source :
Zeitschrift für Geomorphologie, issn : 0372-8854, 2010, vol. 54, n°. 2, Special issue, p. 307-328, nombre de pages : 22, Références bibliographiques : 45 ref.

Date :
2010

Editeur :
Pays édition : Allemagne, Stuttgart, Gebruder Borntraeger

Langue :
Anglais
Droits :
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