The Cretaceous of the Swiss Jura Mountains: an Improved Lithostratigraphic Scheme
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by RERO DOC Digital Library Published in "Swiss Journal of Geosciences 109(2): 201–220, 2016" which should be cited to refer to this work. The Cretaceous of the Swiss Jura Mountains: an improved lithostratigraphic scheme Andre´ Strasser1 • Jean Charollais2 • Marc Andre´ Conrad3 • Bernard Clavel4 • Antoine Pictet5 • Bruno Mastrangelo6 Abstract In the course of the HARMOS project of the finally the drowning of this platform followed by the pre- Swiss Geological Survey, the lithostratigraphic subdivi- dominance of pelagic conditions. The common lateral and sions of the Cretaceous sedimentary rocks outcropping in vertical changes in facies and sedimentation rates as well as the Swiss Jura Mountains were revisited. New formation numerous hiatuses within the formations testify to a com- names are proposed where only inadequate facies terms plex interplay of tectonics, climate, and sea level that existed so far. As in some cases outcrop conditions in the controlled the Swiss Jura realm during the Cretaceous. Swiss Jura do not allow for logging complete sections to characterise the formations, type localities in neighbouring Keywords Swiss Jura Á Cretaceous Á Lithostratigraphy Á France have been chosen. The following formations (Fm.) Geological maps are defined to describe the Cretaceous lithological units (from bottom to top): Goldberg Fm., Pierre-Chaˆtel Fm., Re´sume´ Dans le cadre du projet HARMOS du Service Vions Fm., Chambotte Fm., Vuache Fm., Grand Essert ge´ologique suisse, les subdivisions lithostratigraphiques Fm., Gorges de l’Orbe Fm., Vallorbe Fm., Perte du Rhoˆne des roches se´dimentaires cre´tace´es du Jura suisse ont e´te´ Fm., Narlay Fm.
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