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Fig. 16 | Swiss Journal of Geosciences

Fig. 16

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. 16

a Location map of the type-sections of the Rivière Member in the locality of the same name (Ain, France) and field-photographies. b General view of the La Rivière type section and the median and higher marly intercalations below the Vallorbe Member. c View of the discontinuity surface D.Ba5 separating the lower and median sequences of the Rivière Member. d Focus on the bioperforated hardground D.Ba4. e Focus on the Heteraster couloni-rich marl of the median intercalation

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