oa Mapping of the Cretaceous-Tertiary boundary in the coastal area of Køge Bugt by gamma- and resistivity borehole logging

In the coastal region of Køge Bugt Maastrichtian chalk and Danian bryozoan limestone form the prequaternary basement. Maastrichtian chalk forms the prequatemary basement along a section of the coastline, while Danian bryozoan limestone inland appears above the chalk. On a regional scale the Maastrichtian/Danian boundary surface dips westwards.