Maastrichtian dinoflagellate zonation in the Dan Field, Danish North Sea

Core samples from the Maastrichtian oil reservoir chalks in the Dan Field (southern part of the Danish Central Trough) have yielded diverse dinoflagellate cyst assemblages which have been assessed in order to establish a high-resolution biostratigraphical framework. Eight successive downhole events occur in a relatively consistent pattern and have been used to subdivide the Late Maastrichtian and the late Early Maastrichtian in the Dan Field....