The Cretaceous of NE Greenland: Integration and Implications of the Nanok-1 Core Well. Report Supplement to Nanok-1 Core Well and The Cretaceous of NE Greenland Data Packages

This report supplement presents a summary of selected results of the Nanok-1 core data package and “The Cretaceous of North-East Greenland” report series. The report supplement aims to integrate the data derived from the time-equivalent intervals reported in these reports and to discuss their implications for the Upper Cretaceous petroleum geology of the neighboring offshore basins. The supplement is delivered to the participating sponsoring companies of the analytical programs of both the Nanok-1 core well (Appendix B4) and The Cretaceous of NE Greenland (Appendix J1).

The Nanok-1 core penetrated the Upper Cenomanian – Lower Campanian interval of the Fosdalen Formation (note the redefined usage after Bjerager et al., 2012) at Knudshoved, east coast of Hold with Hope. Tectonostratigraphically, the succession corresponds to the late post-rift phase, characterized by filling of inherited fault block topography and change from axial N–S oriented sedimentation to east-directed sediment delivery (see Ineson et al., 2012a for wider discussion). In brief, four main aspects in this interval are considered to be of potential importance regarding the regional petroleum geology: 1) Increase in source rock potential during the Cenomanian; 2) Onset of accelerated reduction of accommodation space and inferred increase in sediment bypass during the Late Cenomanian; 3) Turonian uplift event; and 4) the Coniacian–Santonian maximum regression, culmination of sediment by-pass and basin floor fan development.