Interplay between base‐salt relief, progradational sediment loading and salt tectonics in the Nordkapp Basin, Barents Sea – Part II

Reprocessed, regional, 2D seismic reflection profiles, 3D volumes and well data (exploration shallow boreholes), combined with structural restorations 1D backstripping were used to study the post-salt evolution of Nordkapp Basin in Barents Sea. The took place above a pre-salt basement basin configuration affected by multiple rift events that influenced depositional facies thickness Pennsylvanian-lower Permian-layered evaporite sequence. Initially, regional mid-late Permian extension reactivated Carboniferous faults, caused minor normal faulting strata triggered slight salt mobilization towards highs. main phase occurred during earliest Triassic when thick rapidly prograding sediments entered from east into Basin. In early-mid-Triassic, change direction progradation sediment entry-points shifted NW led rotation earlier-formed mini-basins shift dominant evacuation south. influx direction, transport velocity dynamics early late passive diapirism, expulsion depletion along strike basin. topography resulting highs mini-basin lows strongly progradational fairways determined distinct routing patterns. Minor rejuvenation structures at Triassic–Jurassic transition, due far-field stresses evolving Novaya Zemlya fold-and-thrust belt east. This dispersal routings formation dwarf secondary mini-basins. second likely early-mid-Eocene propagated transpressional Eurekan/Spitsbergen orogeny inverted rejuvenated structures. studied processes outcomes can be applicable other evaporite-dominated basins worldwide.