Structures and stratigraphy of Danian limestone, eastern Sjælland, Denmark

Abstract

West of København, the top of the pre-Quaternary limestone is found near the terrain surface. There is only a relatively thin cover of Quaternary deposits, which makes the limestone vulnerable to pollution. Region Hovedstaden, being responsible for treating polluted sites, therefore asked GEO and the Geological Survey of Denmark and Greenland to describe the geology and hydraulic characteristics of the limestone formations (Galsgaard et al. 2014). During this work new information and data were collected and a revised geological model established for the area between København and Roskilde (Fig. 1). The model is based on seismic sections, a revised map of the pre-Quaternary surface, biostratigraphy, borehole information and geophysical data. This paper presents the revised geological model.