Mapping palaeostructure and palaeobathymetry along the Norwegian Atlantic continental margin: More and Voring basins

摘要

The post-Jurassic bathymetric and subsidence history of the Mid-Norwegian Atlantic margin (Møre and Vøring basins) has been investigated using the technique of 3D-flexural backstripping. Eleven mapped horizons from seabed to the Base Cretaceous have been sequentially backstripped to produce a suite of palaeobathymetry and palaeostructure maps for all horizons at all time stages. Backstripping has incorporated thermal subsidence in response to (1) an initial rift event at c. 140 Ma and (2) a subsequent rift-to-break-up event in the latest Cretaceous/early Tertiary. Transient dynamic uplift of the margin during the Paleocene is also incorporated, having a particular impact on palaeobathymetric predictions at this time.