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Feedback between erosion and active deformation : geomorphic constraints from the frontal Jura fold-and-thrust belt (eastern France)

Madritsch, H. and Fabbri, O. and Hagedorn, E. M. and Preusser, F. and Schmid, Stefan M. and Ziegler, P.. (2010) Feedback between erosion and active deformation : geomorphic constraints from the frontal Jura fold-and-thrust belt (eastern France). International journal of earth sciences, 99 (1). pp. 103-122.

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Official URL: http://edoc.unibas.ch/dok/A5839852

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Abstract

A regional tectono-geomorphic analysis indicates a Pliocene to recent rock uplift of the outermost segment of the Jura fold-and-thrust belt, which spatially coincides with the intra-continental Rhine-Bresse Transfer Zone. Elevated remnants of the partly eroded Middle Pliocene Sundgau-Foreˆt de Chaux Gravels identified by heavy mineral analyses allow for a paleo-topographic reconstruction that yields minimum regional Latest Pliocene to recent rock uplift rates of 0.05 ± 0.02 mm/year. This uplift also affected the Pleistocene evolution of the Ognon and Doubs drainage basins and is interpreted as being tectonically controlled. While the Ognon River was deflected from the uplifted region the Doubs deeply incised into it. Focused incision of the Doubs possibly sustained ongoing deformation along anticlines which were initiated during the Neogene evolution of the thin-skinned Jura fold-and-thrust belt. At present, this erosion-related active deformation is taking place synchronously with thick-skinned tectonics, controlling the inversion of the Rhine-Bresse Transfer Zone. This suggests local decoupling between seismogenic basement faulting and erosion-related deformation of the Mesozoic cover sequences.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geologie-Paläontologie > Tektonik (nn)
UniBasel Contributors:Schmid, Stefan M.
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Springer
ISSN:1437-3254
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:20 Sep 2017 13:36
Deposited On:14 Sep 2012 07:13

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