Quaternary glaciation history of northern Switzerland

Preusser, Frank; Graf, H.; Keller, Oskar; Krayss, Edgar; Schlüchter, Christian

doi:10.3285/eg.60.2-3.06

Cited by 152 publications

(208 citation statements)

References 27 publications

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“…2), corresponding to a progressive downwasting of the glacier and convergence of the intermorainic outwash plains with the Mincio River. Similar behavior of the Tagliamento glacier is documented between 22 and 19.5 ka 13 , while the Rhine system has several recessional units spanning from 21.5 to 17.3 ka 14 , and a similar pattern was dated in the Reuss system 40 . The decline of the three glaciers corresponds with the shift of the isotopic record of 7 H speleothems towards more positive values (light blue banner in Fig.…”

Section: Discussionmentioning

confidence: 54%

“…The dataset from GEMS, along with those available for the Rhine 14 and the Tagliamento 12, 13 systems, confirm that the Alpine glaciers were advancing at ca. 28 ka cal BP.…”

Section: Discussionmentioning

confidence: 62%

“…Following this circulation model, regional differences in the timing of valley glacier advances have been linked to the location (N or S of the Alps) of the glaciers’ accumulation areas 8 . This interpretation is based on the only two glacial systems in the Alps for which firm chronologic constraints are available: the Tagliamento 12, 13 and the Rhine 14 . However, their large difference in catchment size (9,400 km 2 for the Rhine and 2,500 km 2 for the Tagliamento; Fig.…”

Section: Introductionmentioning

confidence: 99%

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The Alpine LGM in the boreal ice-sheets game

Monegato

Scardia

Hajdas

et al. 2017

Sci Rep

129

111

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New chronologic and stratigraphic constraints from the Garda morainic amphitheater define the extension of the last glaciation in the Adige-Sarca system and improve the Alpine LGM dataset. Together with the available chronology of the Rhine and Tagliamento systems, our results indicate a synchronous maximum culmination of Alpine glaciers during the LGM, which anticipated by about 3.5 ka the maximum extension of the Eurasian Ice Sheet (EIS). This is ascribed to the sensitivity of Alpine glaciers to the availability of moisture from southerly circulation, as recently documented by speleothem δ18O curve from Sieben Hengste (7 H). According to global circulation models, the waxing of the North American Ice Sheet (NAIS) at 26–23 ka pushed the North Atlantic jet stream southwards. This enhanced precipitation rates in southern Europe by advection of moisture from the Mediterranean Sea, triggering expansion of the Alpine glaciers. NAIS waning after 23 ka led to the gradual re-establishment of westerly circulation and renewal of a moisture supply to northern Europe, feeding the EIS to its maximum volume. Reduced supply of moisture from the Mediterranean Sea sealed the fate of the Alpine glaciers, which entered a final recessional phase after 22 ka and faded out after 17.5 ka.

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Section: Discussionmentioning

confidence: 54%

“…The dataset from GEMS, along with those available for the Rhine 14 and the Tagliamento 12, 13 systems, confirm that the Alpine glaciers were advancing at ca. 28 ka cal BP.…”

Section: Discussionmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 99%

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The Alpine LGM in the boreal ice-sheets game

Monegato

Scardia

Hajdas

et al. 2017

Sci Rep

129

111

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“…This inference is in agreement with the tentatively suggested onset of the post LGM deglaciation in the range around 21.5 ka (Makos et al, 2013a). Moreover, by around 21 ka the Alpine glaciers had started to retreat from their maximum position (Preusser, 2004;Ivy-Ochs et al, 2004;Pellegrini et al, 2005;Preusser et al, 2011).…”

Section: Glaciation Chronology In the Study Areamentioning

confidence: 97%

Geomorphological evidence and 10Be exposure ages for the Last Glacial Maximum and deglaciation of the Velká and Malá Studená dolina valleys in the High Tatra Mountains, central Europe

Engel

Mentlík

Braucher

et al. 2015

Quaternary Science Reviews

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“…The chronology of the Late Quaternary glaciations is relatively better established compared to the older ones (e.g., Ivy-Ochs et al 2008;Preusser et al 2011;and references therein). The timing of Deckenschotter glaciations is still completely unknown, although some attempts have been made in the past (e.g., Bolliger et al 1996).…”

Section: Introductionmentioning

confidence: 99%

The first major incision of the Swiss Deckenschotter landscape

et al. 2014

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The Swiss Deckenschotter (''cover gravels'') is the oldest Quaternary units in the northern Swiss Alpine Foreland. They are a succession of glaciofluvial gravel layers intercalated with glacial and/or overbank deposits. This lithostratigraphic sequence is called Deckenschotter because it ''covers'' Molasse or Mesozoic bedrock and forms mesa-type hill-tops. Deckenschotter occurs both within and beyond the extent of the Last Glacial Maximum glaciers. The Swiss Deckenschotter consist of two subunits: Höhere (Higher) and Tiefere (Lower) Deckenschotter. Although the Höhere Deckenschotter sub-unit (HDS) is topographically higher than the Tiefere Deckenschotter, it is older. The only available age for the Swiss Deckenschotter is 2.5-1.8 Ma based on mammal remains found in HDS at the Irchel site. In this study, we present an exposure age for the topographically lowest HDS, calculated from a cosmogenic 10 Be depth-profile. Our results show that the first phase of the Deckenschotter glaciations in the Swiss Alps terminated at least 1,020 þ80 À120 ka ago, which is indicated by a significant fluvial incision. This line of evidence seems to be close to synchronous with the beginning of the Mid-Pleistocene Revolution, when the frequency of the glacial-interglacial cyclicity changed from 41 to 100 ka and the amplitude from low to high, between marine isotope stages 23 and 22.

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Quaternary glaciation history of northern Switzerland

Cited by 152 publications

References 27 publications

The Alpine LGM in the boreal ice-sheets game

The Alpine LGM in the boreal ice-sheets game

Geomorphological evidence and 10Be exposure ages for the Last Glacial Maximum and deglaciation of the Velká and Malá Studená dolina valleys in the High Tatra Mountains, central Europe

The first major incision of the Swiss Deckenschotter landscape

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