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Landscape aridification in Central Germany during the late Weichselian Pleniglacial - results from the Zauschwitz loess site in western Saxony

Climatic signals in geomorphological systems

Auteur(s) et Affiliation(s)

LAUER, T.
Chair of Physical Geography, Univ., Leipzig, Allemagne
Leibniz Inst. for Applied Geophysics, Hannover, Allemagne
Chair of Physical Geography, Univ., Leipzig, Allemagne
VOLLMANN, H.
Chair of Physical Geography, Univ., Leipzig, Allemagne
Deutsches GeoForschungsZentrum GFZ, Hydrology section, Potsdam, Allemagne
MESZNER, S.
Inst. of Geography, Univ. of Technology, Dresden, Allemagne
FRECHEN, M.
Leibniz Inst. for Applied Geophysics, Hannover, Allemagne
TINAPP, C.
Chair of Physical Geography, Univ., Leipzig, Allemagne
GOLDMANN, L.
Chair of Physical Geography, Univ., Leipzig, Allemagne
MÜLLER, S.
Goethe Univ., Inst. of Physical Geography, Frankfurt am Main, Allemagne
ZIELHOFER, C.
Chair of Physical Geography, Univ., Leipzig, Allemagne


Description :
The lithostratigraphic classification of the loess-palaeosol sequence from Zauschwitz (Western Saxony) was combined with polymineral fine grain luminescence dating using the pIRIR290 approach, and correlated with similar loess-palaeosol-sequences from Central Saxony. The AA. obtained information about a climatic shift from more humid to more arid conditions during the late Pleniglacial, due to changes in the landscape dynamics of the study area : At ca. 30 ka, braided river floodplain accumulation of the nearby Weisse Elster river was followed by a phase of decreased fluvial activity, allowing initial loess deposition on top of the fluvial sands and gravels. This period was characterized by cold but still quite humid conditions, as indicated by reworked loess and the occurrence of several tundra gley soils. Subsequently, a cold and more arid period of dust accumulation followed after ca. 22 ka. Intensive anthropogenic activity almost totally redeposited the Holocene black soil, demonstrating the attractiveness of the fertile loess area for early human settlement.


Type de document :
Article de monographie

Source :
Zeitschrift für Geomorphologie, issn : 0372-8854, 2014, vol. 58, n°. 1, Supl., p. 27-50, nombre de pages : 24, Références bibliographiques : 56 ref.

Date :
2014

Editeur :
Pays édition : Allemagne, Stuttgart, Gebruder Borntraeger

Langue :
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)