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Sensitivity of frost weathering and aeolian deposition during genesis of Late Quaternary periglacial slope covers on calcareous rocks of a Muschelkalk landscape, eastern Thuringian Basin, Germany

Long-term degradation of fragile landscape systems

Auteur(s) et Affiliation(s)

BULLMANN, H.
Dept. of Geography, Univ., Leipzig, Allemagne
HEINRICH, J.
Dept. of Geography, Univ., Leipzig, Allemagne
FLETCHER, W.J.
Geography, School of Environment and Development, Univ., Manchester, Royaume-Uni
FAUST, D.
Institute of Geography, Technical Univ., Dresden, Allemagne
ZIELHOFER, C.
Institute of Geography, Univ., Leipzig, Allemagne


Description :
The lithological and petrological properties of calcareous rock types are reflected by remarkably different structure, thickness and clast properties of frost shattered debris within the investigated Muschelkalk landscape as well as in chemical weathering rates within the debris. The AA. assume that the deposition of loess sediments might be sensitive to both properties and patterns of debris cover and to the amount of pre-existing Braunlehm that resulted from limestone dissolution processes. Soil moisture conditions and vegetation cover might have been as crucial factors for loess distribution as luff-/lee-effects of the regional wind system or karst surface morphology. Considering the ecological consequences implied by the structure and heterogeneity of periglacial loose rock cover, limestone landscapes in general seem to be vulnerable to degradation processes.


Type de document :
Article de monographie

Source :
Catena (Giessen), issn : 0341-8162, 2013, vol. 103, p. 74-86, nombre de pages : 13, Références bibliographiques : 1 p.

Date :
2013

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais
Droits :
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