Late Cenomanian-Turonian isotopic stratigraphy in the chalk of the Paris Basin (France): a reference section between the Tethyan and Boreal realms

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Fig. 2

Carbon and oxygen isotopic profiles of the Craie 701 borehole. Lithology (bentonite levels are identified by a green dashed line) and biostratigraphy are from Robaszynski et al. (2005). Subdivisions of the δ¹³C profile into eight carbon isotope sequences (CIS) labelled I though VIb are also mentioned.

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