ZERATHE , Swann

The first erosional front of the south‐eastern Alps has been affected by several deep‐seated landslides. The movements affected a Jurassic limestone sequence underlain by an upper Trias unit (Keuper) mainly composed of marl and clays. Horst‐ and graben‐like structures, newly formed gravitational faults, outflow and other field evidence suggest...

This paper highlights potential complications that may arise while using in situ produced 10 Be to date exposure or burial events using diagenetic silica (chert). The initiation and evolution of large gravitational collapses in sedimentary rocks were constrained using cosmic ray exposure dating. Because these col- lapses occurred in a...

Fluvial incision is one of the major erosive processes acting at Earth's surface and is highly sensitive to tectonic, isostatic and climatic variations. The aim of this study is to distinguish between the short-term climatic fluctuations versus the long-term tectonic forcing contribution to Late-Quaternary fluvial incision, to better understand...

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International audience

Fluvial incision is the consequence of landscape readjustment to combined tectonic and climatic processes. In the southwestern Alps (Haute Provence Geopark), deep gorges incised by the Bes River attest of efficient erosional processes at the front of the Alpine mountain range. This catchment stands in a peripheral Alpine position, out of the...

Deciphering the impact of short-term or long-term forcing on fluvial incision, as well as understanding the influence of local (channel lithology and morphology) and global (tectonic motions) parameters in the spatial variation of incision efficiency, are ongoing geomorphological research fields. To shed new light on these issues, we chose to...