A new high-resolution carbon-isotope stratigraphy for the Campanian (Bottaccione section): Its implications for global correlation, ocean circulation, and astrochronology

A high-resolution carbon isotope record is presented for Campanian strata of the Bottaccione section (Umbria-Marche Basin), through an interval that constitutes the standard reference section for the geomagnetic polarity time scale. The identification of prominent δ13C excursions and high frequency variations allows the establishment of robust stratigraphic markers to link this new Tethyan δ13C record with the Boreal realm (Lägerdorf-Kronsmoor...