Tor Oftedal Sømme's picture

Tor Oftedal Sømme

Associate Professor
  • E-mailTor.Somme@uib.no
  • Visitor Address
    Allégaten 41
    5007 Bergen
  • Postal Address
    Postboks 7803
    5020 Bergen

My main research interest is to study recent (Quaternary) and ancient (Mesozoic) erosional-depositional systems to better understand and quantify how they respond to tectonic and climatic perturbations. The North Atlantic continental margin is one of the areas where this can be investigated at various levels and represents a key study area for further work. This type of analysis required interdisciplinary collaboration and integration of stratigraphy, thermochronology, geodynamics and structural geology. The goal is to make integrated models that can better predict and capture the stratigraphic variability that is present along this and other continental margins.

Academic article
  • Show author(s) (2013). Source-to-sink analysis of ancient sedimentary systems using a subsurface case study from the Møre-Trøndelag area of southern Norway: Part 1-depositional setting and fan evolution. Basin Research. 489-511.
  • Show author(s) (2013). Source-to-sink analysis of ancient sedimentary systems using a subsurface case study from the More-Trondelag area of southern Norway: Part 2-sediment dispersal and forcing mechanisms. Basin Research. 512-531.
  • Show author(s) (2013). Quantitative aspects of stratigraphic onshoreoffshore relationships along the western margin of southern Norway: implications for Late Mesozoic and Cenozoic topographic evolution. Norsk Geologisk Tidsskrift. 261-276.
  • Show author(s) (2013). Linking offshore stratigraphy to onshore paleotopography: The Late Jurassic-Paleocene evolution of the south Norwegian margin. Geological Society of America Bulletin. 1164-1186.
  • Show author(s) (2012). Shelf genesis revisited. Journal of Sedimentary Research. 133-148.
  • Show author(s) (2011). Linking onshore–offshore sediment dispersal in the Golo source-to-sink system (Corsica, France) during the late quaternary. Journal of Sedimentary Research. 118-137.
  • Show author(s) (2011). Borehole evidence for wing-like clastic intrusion complexes on the western Norwegian margin. Journal of the Geological Society. 1075-1078.
  • Show author(s) (2009). Reconstructing morphological and depositional characteristics in subsurface sedimentary systems: An example from the Maastrichtian-Danian Ormen Lange system, More Basin, Norwegian Sea. American Association of Petroleum Geologists Bulletin. 1347-1377.
  • Show author(s) (2009). Impact of eustatic amplitude variations on shelf morphology, sediment dispersal, and sequence stratigraphic interpretation: Icehouse versus greenhouse systems. Geology. 587-590.
  • Show author(s) (2013). Importance of onshore-offshore relationships for regional stratigraphic development – examples from the Norwegian margin.
Academic lecture
  • Show author(s) (2022). New insights into the brittle evolution along the passive continental margin of Western Norway from U-Pb calcite dating.
  • Show author(s) (2022). A multi-source-to-sink system in a dynamic plate tectonic setting: the Cenozoic of the Barents Sea, Norwegian Arctic.
  • Show author(s) (2012). Source-to-sink: Concepts, cases and challenges (keynote).
  • Show author(s) (2011). Use of source-to-sink concepts to provide insight to the stratigraphic record.
  • Show author(s) (2011). The use of a source-to-sink methodology in petroleum exploration – examples from the Mesozoic of the North Sea.
  • Show author(s) (2011). Source-to-sink analysis of modern and ancient sedimentary systems.
  • Show author(s) (2011). Cretaceous slope fan system in the Norwegian North Sea – implications for ancient onshore topography.
  • Show author(s) (2010). Using modern rift analogues to constrain paleo drainage along the Norwegian margin.
  • Show author(s) (2010). Source-to-sink in rift basins – predicting reservoir distribution in ancient, subsurface systems.
  • Show author(s) (2010). Partitioning and preservation of sediment over multiple time-scales.
  • Show author(s) (2010). Onshore-offshore sediment dispersal in the Golo source-to-sink system during the late Quaternary.
  • Show author(s) (2010). 30 years of sequence stratigraphy - what have we learnt and what's next?
  • Show author(s) (2009). Multiple time-scales in the development of source-to-sink systems.
  • Show author(s) (2008). The influence of eustatic sea-level variations on shelf morphology and sediment distribution in source-to-sink systems.
  • Show author(s) (2008). Predicting first-order charac-teristics in subsurface systems using a source-to-sink approach: an example from the Paleocene Ormen Lange system, Møre Basin, Norwegian Sea.
  • Show author(s) (2007). Transportation and delivery of sediments from river catchments to basin floor fans.
  • Show author(s) (2007). 3-D modelling of coastal plain deposits from the Blackhawk Formation, Estern Utah.
  • Show author(s) (2005). Depositional dip correlations from the shorface and estuarine systems in the Book Cliffs, eastern Utah.
  • Show author(s) (2005). 3D-modelling of coastal plain deposits from the Blackhawk Formation, eastern Utah.
Short communication
  • Show author(s) (2010). Impact of eustatic amplitude variations on shelf morphology, sediment dispersal, and sequence stratigraphic interpretation: Icehouse versus greenhouse systems: REPLY. Geology. E209-E209.
Doctoral dissertation
  • Show author(s) (2009). Source-to-sink systems : sediment partitioning and geomorphic development over multiple time-scales.
Academic chapter/article/Conference paper
  • Show author(s) (2010). Source-to-sink systems on passive margins: theory and practice with an example from the Norwegian continental margin. 8 pages.
  • Show author(s) (2008). Genesis, architecture, and numerical modeling of intra-parasequence discontinuity surfaces in wave-dominated deltaic deposits; Upper Cretaceous Sunnyside Member, Blackhawk Formation, Book Cliffs, Utah, U.S.A. 23 pages.
  • Show author(s) (2021). Tectonic influence of Large Igneous Provinces on source-to-sink systems, the case study of Shetland during the Palaeocene - Preliminary results.
  • Show author(s) (2013). Timing of brittle deformation associated with the Nordfjord-Sogn Detachment Zone: preliminary results from K/Ar illite dating.
  • Show author(s) (2010). Factors controlling stratigraphy and the use of uniformitarianism when interpreting the stratigraphic record.
Academic literature review
  • Show author(s) (2016). Deciphering earth's natural hourglasses: Perspectives on source-to-sink analysis. Journal of Sedimentary Research. 1008-1033.
  • Show author(s) (2009). Relationships between morphological and sedimentological parameters in source-to-sink systems: a basis for predicting semi-quantitative characteristics in subsurface systems. Basin Research. 361-387.

More information in national current research information system (CRIStin)


Sømme, T.O., Skogseid, J., Embry, P. & Løseth, H., 2019: Manifestation of Tectonic and Climatic Perturbations in Deep-Time Stratigraphy – An Example From the Paleocene Succession Offshore Western Norway. Front. Earth Sci., 20 https://doi.org/10.3389/feart.2019.00303


Sømme, T.O., Doré, A.G., Lundin, E.R., Tørudbakken, B.O.T., 2018, Triassic–Paleogenepaleogeography of the Arctic: Implications for sediment routing and basin fill. AAPG Bulletin, Volume 102, 2418-2517.