Landslide deposits as stratigraphical markers for a sequence-based glacial stratigraphy: a case study of a Younger Dryas system in the Eastern Alps

Boreas ◽  
2016 ◽  
Vol 45 (3) ◽  
pp. 537-551 ◽  
Author(s):  
Mathias G. Bichler ◽  
Martin Reindl ◽  
Jürgen M. Reitner ◽  
Ruth Drescher-Schneider ◽  
Christian Wirsig ◽  
...  
Keyword(s):  
2017 ◽  
Vol 472 ◽  
pp. 82-94 ◽  
Author(s):  
I.E. van Gelder ◽  
E. Willingshofer ◽  
D. Sokoutis ◽  
S.A.P.L. Cloetingh

2020 ◽  
Vol 109 (6) ◽  
pp. 2235-2253
Author(s):  
Gerd Rantitsch ◽  
Christoph Iglseder ◽  
Ralf Schuster ◽  
Marianne Sophie Hollinetz ◽  
Benjamin Huet ◽  
...  

Geomorphology ◽  
2014 ◽  
Vol 207 ◽  
pp. 149-160 ◽  
Author(s):  
Luca Zorzi ◽  
Matteo Massironi ◽  
Nicola Surian ◽  
Rinaldo Genevois ◽  
Mario Floris
Keyword(s):  

2018 ◽  
Vol 12 (1) ◽  
pp. 401-412 ◽  
Author(s):  
Pascal Bohleber ◽  
Helene Hoffmann ◽  
Johanna Kerch ◽  
Leo Sold ◽  
Andrea Fischer

Abstract. Cold glaciers at the highest locations of the European Alps have been investigated by drilling ice cores to retrieve their stratigraphic climate records. Findings like the Oetztal ice man have demonstrated that small ice bodies at summit locations of comparatively lower altitudes may also contain old ice if locally frozen to the underlying bedrock. In this case, constraining the maximum age of their lowermost ice part may help to identify past periods with minimum ice extent in the Alps. However, with recent warming and consequent glacier mass loss, these sites may not preserve their unique climate information for much longer. Here we utilized an existing ice cave at Chli Titlis (3030 m), central Switzerland, to perform a case study for investigating the maximum age of cold-based summit glaciers in the Alps. The cave offers direct access to the glacier stratigraphy without the logistical effort required in ice core drilling. In addition, a pioneering exploration had already demonstrated stagnant cold ice conditions at Chli Titlis, albeit more than 25 years ago. Our englacial temperature measurements and the analysis of the isotopic and physical properties of ice blocks sampled at three locations within the ice cave show that cold ice still exists fairly unchanged today. State-of-the-art micro-radiocarbon analysis constrains the maximum age of the ice at Chli Titlis to about 5000 years before present. By this means, the approach presented here will contribute to a future systematic investigation of cold-based summit glaciers, also in the Eastern Alps.


Radiocarbon ◽  
2014 ◽  
Vol 56 (2) ◽  
pp. 899-912 ◽  
Author(s):  
Philippe Crombé ◽  
Erick Robinson ◽  
Mark van Strydonck

Sum probability and Bayesian modeling of a substantial series of radiocarbon dates from a former extensive lake area in NW Belgium, known as the Moervaart area, allow important hydrological changes to be synchronized with Greenland Interstadial lb (or Intra-Allerød Cold Period). It is postulated that the disappearance of nearly all open water systems (Moervaart lake, anastomosing gullies, and dune-slacks) in response to this short but abrupt cooling event was responsible for a nearly total retreat of hunter-gatherers already some centuries before the start of Greenland Stadial 1 (Younger Dryas).


2020 ◽  
Vol 113 (1-2) ◽  
pp. 201-210
Author(s):  
Gerd Rantitsch ◽  
Gerhard Bryda ◽  
Hans-Jürgen Gawlick

AbstractCarnian metapelites from the southeastern segment of the Mürzalpen Nappe (Northern Calcareous Alps, Eastern Alps) were heated to 280-310 °C, estimated by Raman spectroscopy of carbonaceous material (RSCM). This temperature range is correlated to a Color Alteration Index of 5.0-6.5, determined on conodonts from adjacent Anisian to Norian carbonates. Average RSCM temperatures estimated on the conodonts are biased towards higher temperatures. The spectral characteristics of the conodont apatite suggest a composition altered during progressive recrystallization, influencing the band parameters of the included carbonaceous matter. Consequently, accurate conodont RSCM thermometry needs an assessment of apatite alteration.


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