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Geological sections of the Cenomanian karsts from the Neau quarry. A. Synthetic section of the karsts with lignite and amber, observed by the authors (Cmb = Cambrian limestones; CnL = Cenomanian lignites; CnS = Cenomanian sand; CnG = Cenomanian Glauconitic facies). B. Geological section published by Azema et al. (1972), with location of their palynological samples S1 to S12.
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