MANUSCRIPT ACCEPTED ACCEPTED MANUSCRIPT Depositional evolution of a progradational to aggradational, mixed- influenced deltaic succession: Jurassic Tofte and Ile formations, southern Halten Terrace, offshore Norway Marijn van Cappelle 1, *, Rodmar Ravnås 2 , Gary J. Hampson 1 & Howard D. Johnson 1 1 Department of Earth Science and Engineering, Imperial College London, Royal School of Mines, Prince Consort Road, London, SW7 2BP, United Kingdom 2 Norske Shell A/S, Tankvegen 1, Tananger, Norway *corresponding author: marijnvancappelle@gmail.com Hightlights: • Core-based sedimentology of Jurassic deltaic strata from offshore Norway • Facies analysis of tide-influenced deltaic and estuarine petroleum reservoirs • Temporal development of deltaic deposits fed from multiple sediment sources • Temporal development of tide-influenced deltaic deposits in a rift basin • Synthesis of allocyclic and autocyclic processes on stratigraphic architecture Abstract Predicting the hydrodynamics, morphology and evolution of ancient deltaic successions requires the evaluation of the three-dimensional depositional process regime based on sedimentary facies analysis. This has been applied to a core-based subsurface facies analysis of a mixed-energy, clastic coastal-deltaic succession in the Lower-to-Middle Jurassic of the Halten Terrace, offshore mid- Norway. Three genetically related successions with a total thickness of 100-300 m and a total duration of 12.5 Myr comprising eight facies associations record two initial progradational phases and a final aggradational phase. The progradational phases (I and II) consist of coarsening upward