Spatial analysis of loess and loess-like sediments in the Weser-Aller catchment (Lower Saxony and Northern Hesse, NW Germany)

Wagner, Bianca

doi:10.3285/eg.60.1.02

Cited by 21 publications

(14 citation statements)

References 13 publications

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“…The maximum cold in central Europe is reported for the LGM (c. 20 ka), followed by a slight increase in temperatures during the interval 18-13 ka (Mol et al 2000). After the LGM arid conditions prevailed, resulting in the widespread deposition of aeolian loess, sand-sheets and dunes (Kasse 2002;Schokker & Koster 2004;Kasse et al 2007;Wagner 2011;Zieliń ski et al 2011).…”

Section: Discussionmentioning

confidence: 99%

“…In particular, absolute age determinations are scarce for aeolian sand-sheets. Sand-sheet deposition prevailed mainly in northern Germany, passing southwards into finer-grained loess (Wagner 2011). The grain size distribution indicates a dominance of westerly winds during the Early and Middle Pleniglacial, while the Late Pleniglacial was dominated by northwestern or northern winds in central Europe (Bokhorst et al 2011).…”

mentioning

confidence: 96%

“…Most previous work focused on Late Pleistocene aeolian sand-sheets and loess (Frechen et al 2001;Moine et al 2008;Bokhorst et al 2011;Wagner 2011;Fischer et al 2012). In northern Germany, Late Pleistocene periglacial mixed fluvial-aeolian successions have not been described and dated in detail.…”

mentioning

confidence: 99%

“…In northern Germany, Late Pleistocene periglacial mixed fluvial-aeolian successions have not been described and dated in detail. Most previous work focused on Late Pleistocene aeolian sand-sheets and loess (Frechen et al 2001;Moine et al 2008;Bokhorst et al 2011;Wagner 2011;Fischer et al 2012). In particular, absolute age determinations are scarce for aeolian sand-sheets.…”

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confidence: 99%

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Climate control on the evolution of Late Pleistocene alluvial‐fan and aeolian sand‐sheet systems in NW Germany

Meinsen

Winsemann

Roskosch

et al. 2013

Boreas

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J. 2014 (January): Climate control on the evolution of Late Pleistocene alluvial-fan and aeolian sand-sheet systems in NW Germany.The Late Pleistocene was characterized by rapid climate oscillations with alternation of warm and cold periods that lasted up to several thousand years. Although much work has been carried out on the palaeoclimate reconstruction, a direct correlation of ice-core, marine and terrestrial records is still difficult. Here we present new data from late Middle Pleniglacial to Lateglacial alluvial-fan and aeolian sand-sheet deposits in northwestern Germany. Records of Late Pleniglacial alluvial fans in central Europe are very rare, and OSL dating is used to determine the timing of fan aggradation. In contrast to fluvial systems that commonly show a delay between climate change and incision/aggradation, the small alluvial-fan systems of the Senne area responded rapidly to climatic changes and therefore act as important terrestrial climate archives for this time span. The onset of alluvial-fan deposition correlates with the climate change from warm to cold at the end of MIS 3 (29.3Ϯ3.2 ka). Strong fan progradation started at 24.4Ϯ2.8 ka and may be related to a period of higher humidity. The vertical stacking pattern of sedimentary facies and channel styles indicate a subsequrent overall decrease in water and sediment supply, with less sustained discharges and more sporadic runoffs from the catchment area, corresponding to an increasing aridity in central Europe during the Late Pleniglacial. Major phases of channel incision and fan aggradation may have been controlled by millennial-scale Dansgaard-Oeschger cycles. The incision of channel systems is attributed to unstable climate phases at cold-warm (dry-wet) or warm-cold (wet-dry) transitions. The alluvial-fan deposits are bounded by an erosion surface and are overlain by aeolian sand-sheets that were periodically affected by flash-floods. This unconformity might be correlated with the Beuningen Gravel Bed, which is an important marker horizon in deposits of the Late Pleniglacial resulting from deflation under polar desert conditions. The deposition of aeolian sand-sheet systems (19.6Ϯ2.1 to 13.1Ϯ1.5 ka) indicates a rapid increase in aridity at the end of the Late Pleniglacial. Intercalated flash-floods deposits and palaeosols (Finow type) point to temporarily wet conditions during the Lateglacial. The formation of an ephemeral channel network probably marks the warm-cold transition from the Allerød to the Younger Dryas.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 96%

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confidence: 99%

mentioning

confidence: 99%

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Climate control on the evolution of Late Pleistocene alluvial‐fan and aeolian sand‐sheet systems in NW Germany

Meinsen

Winsemann

Roskosch

et al. 2013

Boreas

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“…The Pleistocene succession (Fig. 2) comprises Elsterian and Saalian glacifluvial, glacilacustrine, and subglacial deposits, Holsteinian and Eemian lacustrine deposits, and Weichselian loess and solifluidal deposits (Urban et al, 1988(Urban et al, , 1991Mania, 1998Mania, , 2006Elsner, 2003;Wagner, 2011;Lang et al, 2012). In general, the age control of the Middle Pleistocene deposits in northern Germany is poor.…”

Section: Settingmentioning

confidence: 96%

The Middle Pleistocene tunnel valley at Schöningen as a Paleolithic archive

Lang

Böhner

Polom

et al. 2015

Journal of Human Evolution

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A national rockfall dataset as a tool for analysing the spatial and temporal rockfall occurrence in Germany

Rupp

Damm

2020

Earth Surf Processes Landf

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This study presents an evaluation of a comprehensive dataset with information on about 700 recorded rockfall events in Germany for the first time. The focus is on the analysis of monthly distributions of three rockfall clusters in German low mountain ranges and of three elevation classes to provide an overview of the characteristic seasonal occurrence of rockfalls in Germany. Each rockfall distribution is correlated with records of meteorological station clusters which are representative for the long‐term climate conditions of the particular rockfall cluster and elevation class, respectively. The stored parameters in the dataset (year of occurrence, rock volumes, slope angles, affected objects) are evaluated to complete the extensive and differentiated overview of rockfalls in Germany. The analyses of the distributions of the three rockfall clusters show a distinct event concentration in the winter months. Differences are apparent between the monthly distributions of the elevation classes in which clear peaks are partially visible. Freeze–thaw cycles are considered to be the major trigger of winter rockfalls in Germany. Overall, the presented results may serve as a basis for further studies in the German low mountain ranges. © 2020 John Wiley & Sons, Ltd.

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Spatial analysis of loess and loess-like sediments in the Weser-Aller catchment (Lower Saxony and Northern Hesse, NW Germany)

Cited by 21 publications

References 13 publications

Climate control on the evolution of Late Pleistocene alluvial‐fan and aeolian sand‐sheet systems in NW Germany

Climate control on the evolution of Late Pleistocene alluvial‐fan and aeolian sand‐sheet systems in NW Germany

The Middle Pleistocene tunnel valley at Schöningen as a Paleolithic archive

A national rockfall dataset as a tool for analysing the spatial and temporal rockfall occurrence in Germany

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