Abstract
The study concerns a valley glacier of the last ice age in the Central European Highlands and its surrounding area shaped by periglacial geomorphologic dynamic. Based on sedimentologic criteria, periglacial slope deposits are separated from glacigenic tills, they are compared to the glacial environment in this rather small investigation area, and they are clearly distinguished from the periglacial environment. The maximum spatial extension of the last glaciation is dated Late Wuermian. The deglaciation in the Kleiner Arbersee basin took place during or before the Oldest Dryas. This is verified through palynological analysis and absolute dating of lacustrine sediments from the glacial lake basin. The youngest parts of the periglacial slope deposits appear in form of the upper head (Hauptlage) which are laying on the tills and on the glaciolacustrine sediments. The older, lower heads (Basislagen) do not exist in the glacial environment. The genesis of the lower heads outside of the glaciated area is dated pre-Wuermian. The upper head could only develop during a narrow timeframe, from Late Glacial to Oldest Dryas after the melting of the ice.
Translated title of the contribution | Geomorphological and periglacial impacts on valley glacier slope deposits |
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Original language | German |
Pages | 131-149 |
Number of pages | 19 |
Volume | 76 |
No | 2-3 |
Specialist publication | Berichte zur Deutschen Landeskunde |
State | Published - 2002 |
Externally published | Yes |