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The hauterivian-lower aptian sequence stratigraphy from Jura platform to vocontian basin : a multidisciplinary approach / Field-trip of the 7th International symposium on the Cretaceous (September 1-4, 2005) ; [organized by] Université Joseph Fournier, Grenoble 1 Université de Neuchâtel, UNINE

Abstract : These four days are devoted to the Barremian-Lower Aptian series both in the vocontian trough, characterized by basinal facies with ammonites (one day), and on the Urgonian platform which coresponds to its northem margin (three days). The first three days, sediments deposited in the shallow marine environment of the so-called Urgonian platform are observed in two main areas : 1) the Swiss Jura corresponding to the inner part of the platform and 2) the Vercors massif, belonging to the Northem Subalpine Chains (Grenoble region) where nice outcrops allow us to detail the lateral change from platform to basin. These days are devoted to facies analysis and distribution, sequence stratigraphy and geochemistry of the Urgonian carbonate platform (Barremian-early Aptian). The Vercors mountain near Grenoble is one of the most interesting place in the world to analyse the 3D organisation of sedimentary bodies from the inner platform (Gorges du Nant and Les Ecouges section) to the outer shelf which will be observed near Chichilianne on the Glandasse Plateau and the deep marine basin in the eastem Diois. The last day is devoted to the Barremian stratotype which has been defined in the famous Angles section. This section, complete from Lias to Upper Cretaceous, is one of the best section of the vocontian trough (SE France). It could be considered as a reference for the Barremian time as detailed biostratigraphic and geochemistry studies are now available
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Thierry Adatte, Annie Arnaud Vanneau, Hubert Arnaud. The hauterivian-lower aptian sequence stratigraphy from Jura platform to vocontian basin : a multidisciplinary approach / Field-trip of the 7th International symposium on the Cretaceous (September 1-4, 2005) ; [organized by] Université Joseph Fournier, Grenoble 1 Université de Neuchâtel, UNINE. 2005. ⟨insu-00723810⟩

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