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Université de Fribourg

Multi-scale imaging of a slow active fault zone: contribution for improved seismic hazard assessment in the Swiss Alpine foreland

Vouillamoz, Naomi ; Mosar, Jon ; Deichmann, Nicholas

In: Swiss Journal of Geosciences, 2017, vol. 110, no. 2, p. 547–563

Seismic hazard assessment of slow active fault zones is challenging as usually only a few decades of sparse instrumental seismic monitoring is available to characterize seismic activity. Tectonic features linked to the observed seismicity can be mapped by seismic imaging techniques and/or geomorphological and structural evidences. In this study, we investigate a seismic lineament located in...

Université de Fribourg

Combining glaciological and archaeological methods for gauging glacial archaeological potential

Rogers, Stephanie R. ; Fischer, Mauro ; Huss, Matthias

In: Journal of Archaeological Science, 2014, vol. 52, p. 410–420

Recent climate changes have led to an increase in the exposure of archaeological remains in frozen environments due to the melting of glaciers and ice patches, and the thawing of permafrost. In some cases, the discovery of glacial archaeological findings has occurred due to chance. In order to avoid the risk of losing exceptional, often organic, cultural remains due to decomposition, systematic...

Université de Fribourg

Spatial analysis of rockfall activity, bounce heights and geomorphic changes over the last 50 years – A case study using dendrogeomorphology

Schneuwly, Dominique M. ; Stoffel, Markus

In: Geomorphology, 2008///doi:10.1016/j.geomorph.2008.05.043

Tree-ring series have been used to reconstruct 50 years of rockfall behavior on a slope near Saas Balen (Swiss Alps). A total of 796 cores and 141 cross sections from 191 severely injured conifer trees (Larix decidua Mill., Picea abies (L.) Karst. and Pinus cembra L.), combined with a series of aerial photographs, were used to investigate the evolution of the forest stand so...