Chalk Structure Maps of the Central and Eastern North Sea

P177 CHALK STRUCTURE MAPS OF THE CENTRAL AND EASTERN NORTH SEA Abstract 1 O. V. VEJBÆK 1 T. BIDSTRUP 1 P. BRITZE 1 M. ERLSTRÖM 2 E. S. RASMUSSEN 1 and U. SIVHED 2 1 Geological Survey of Denmark and Greenland Østervold 10 1350 København Ø Denmark 2 Sveriges Geologiska Undersökning New detailed maps of the top and base of the Chalk Group have been prepared for the central and eastern North Sea (Fig. 1). Mapping scale is 1:750000 with a contour interval of 50 msec and 50 m for time and depth maps respectively. The comprehensive data base comprise