Microfaunal and nannofloral analysis of the Upper Cretaceous of the Bo-1 well - a contribution to the EFP-93 project: Lower and Upper Cretaceous stratigraphy in the Central Trough

As part of the EFP-93 Cretaceous Stratigraphy Project, microfaunal and nannofossil analyses of the cored intervals and intervening sections with only ditch cutting sample coverage from the Chalk Group of the Bo-1 well were undertaken. A stratigraphic subdivision has been produced and is presented in this report.

The chronostratigraphic subdivision of the Chalk Group that has been established from the Bo-1 material is based on both published and confidential proprietary schemes from the North Sea and adjacent areas.