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Swiss Journal of Geosciences
Fig. 19 | Swiss Journal of Geosciences

Fig. 19

From: New insights on the Early Cretaceous (Hauterivian–Barremian) Urgonian lithostratigraphic units in the Jura Mountains (France and Switzerland): the Gorges de l’Orbe and the Rocher des Hirondelles formations

Fig. 19

a Location map of the type-sections of the Vallorbe Member along the western side of the Vallorbe train station (Vaud, Switzerland) and field-photographies. b Boundary between the Neuchâtel Member (GE Fm) and the Cul du Nozon Bed (GDO Fm). The Pont des Pierres Bed is missing here, leaving a lot of glauconite grains on top of the discontinuity surface D.Ha7. c General view of the Vallorbe section. The lower limestone unit present transitional facies between the Fort de l’Écluse Member (RDH Fm) and the La Vaux Bed (GDO Fm). d View of the Bôle Member and its three main marly intercalations above discontinuity surfaces D.Ba3, D.Ba4 and D.Ba5. e Focus on the strongly ferruginous and karstified surface D.Ba6. f Upper boundary of the Vallorbe Member with the Poet Bed (PDR Fm), separated by the discontinuity surface D.Ba6

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