Use of 10Be exposure ages and Schmidt hammer data for correlation of moraines in the Krkonoše Mountains, Poland/Czech Republic

Auteur(s) et Affiliation(s)

ENGEL, Z.

Dep. of Physical Geography and Geoecology, Fac of Science, Charles Univ., Prague, Tcheque, Republique

TRACZYK, A.

Dep. of Geomorphology, Inst. of Geography and Regional Development, Univ., Wrocław, Pologne

BRAUCHER, R.

CEREGE, Plateau de l'Arbois, Aix-en-Provence, France

WORONKO, B.

Dep. of Geography and Regional Development, Univ., Warszawa, Pologne

KŘÍŽEK, M.

Dep. of Physical Geography and Geoecology, Fac of Science, Charles Univ., Prague, Tcheque, Republique

Description :
Exposure ages and relative-age data are presented from 8 sites in the Łomnica and Łomniczka valleys to provide information for reconstructing local glaciation chronology. A combination of 10Be exposure ages and Schmidt hammer data obtained for moraines indicate relatively short period of glacier accumulation. A comparison of the obtained chronological data with timing of mountain glaciation in the nearby Úpa Valley is used to propose the first correlative model of Late Quaternary glaciation in the eastern part of the Krkonoše Mountains. The correlation implies that the lowermost preserved moraines originated during the local maximum of the last glaciation whereas recessional moraines were deposited until the Lateglacial period. A subsequent melting of glaciers terminated at the beginning of the Holocene. The implications of the model are discussed.

Type de document :
Article de périodique

Source :
Zeitschrift für Geomorphologie, issn : 0372-8854, 2011, vol. 55, n°. 2, p. 175-196, nombre de pages : 22, Références bibliographiques : 52 ref.

Date :
2011

Editeur :
Pays édition : Allemagne, Stuttgart, Gebruder Borntraeger

Langue :
Anglais