L
Lionel Siame
Researcher at Aix-Marseille University
Publications - 72
Citations - 2063
Lionel Siame is an academic researcher from Aix-Marseille University. The author has contributed to research in topics: Denudation & Fault (geology). The author has an hindex of 24, co-authored 63 publications receiving 1783 citations. Previous affiliations of Lionel Siame include University of Paris-Sud & University of Paris.
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Long-term fluvial incision rates and postglacial river relaxation time in the French Western Alps from 10Be dating of alluvial terraces with assessment of inheritance, soil development and wind ablation effects
TL;DR: In this paper, the authors used cosmogenic 10Be measurements to date alluvial terraces in the French western Alps, in order to estimate river incision rates and to infer river response to climatic fluctuations and tectonic forcing.
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Determination of both exposure time and denudation rate from an in situ-produced 10Be depth profile: A mathematical proof of uniqueness. Model sensitivity and applications to natural cases
TL;DR: In this paper, the authors demonstrate that the exponential decrease of the in situ-produced 10Be concentrations observed along a depth profile constrains a unique exposure time and denudation rate when considering both neutrons and muons.
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Local erosion rates versus active tectonics: cosmic ray exposure modelling in Provence (south-east France)
Lionel Siame,Olivier Bellier,Régis Braucher,Michel Sébrier,Marc Cushing,Didier Bourlès,Bruno Hamelin,Emmanuel Baroux,Béatrice de Voogd,Grant M. Raisbeck,Françoise Yiou +10 more
TL;DR: In this paper, a depth-profiling technique applied to alluvial terraces located along the Rhone and the Moyenne Durance rivers has been modelled using a χ2 inversion method in order to constrain the exposure history of the sediments, and the results suggest that over the Quaternary, the local surface erosion rates including both regional uplift and climatically driven processes acting on landforms are on the order of 30 m/Myr in southeastern France, and providing a fairly good bracketing of the exposure age, the modelled abandonment age of all
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High slip rate for a low seismicity along the Palu‐Koro active fault in central Sulawesi (Indonesia)
Olivier Bellier,Michel Sébrier,Thierry Beaudouin,Michel Villeneuve,Régis Braucher,Didier Bourlès,Lionel Siame,Eka Putranto,Indyo Pratomo +8 more
TL;DR: In this article, the authors measured in-situ-produced 10Be in quartz boulders exposed on top surfaces of Sulawesian Late Quaternary alluvial fans.
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Cosmogenic dating ranging from 20 to 700 ka of a series of alluvial fan surfaces affected by the El Tigre fault, Argentina
Lionel Siame,Didier Bourlès,Michel Sébrier,Olivier Bellier,Juan Carlos Castano,Mario A. Araujo,Miguel Perez,Grant M. Raisbeck,Françoise Yiou +8 more
TL;DR: In this paper, the authors used geomorphic and 10-Be exposure ages to date alluvial fan surfaces affected by the El Tigre strike-slip fault in the Andean quaternary fan surface.