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Fig. 2 | Swiss Journal of Geosciences

Fig. 2

From: The Perte-du-Rhône Formation, a new Cretaceous (Aptian-Cenomanian) lithostratigraphic unit in the Jura mountains (France and Switzerland)

Fig. 2

a General northern view of the Perte-du-Rhône at the beginning of the 20th century, with the canyon overcome by the Lucey bridge, and the city of Bellegarde-sur-Valserine in the back. b Upstream north-western view of the Lucey bridge and the canyon. c Geological transect across the Rhône Valley modified from Renevier 1875. d Interpreted section of the Perte-du-Rhône, on the right banc of the river, drawn by C. Vogt in Renevier 1854. e Actual situation, looking north from the left banc, of the Perte-du-Rhône during exceptional drainings of the Génissiat hydraulic dam like here in June 2012. The uppermost part of the Mussel Mb and the Poncin Mb are visible on the right side of the photography

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