Tor Oftedal Sømme's picture

Tor Oftedal Sømme

Associate Professor
  • E-mailTor.Somme@uib.no
  • Visitor Address
    Realfagbygget, Allégt. 41
  • 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
  • 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.
  • 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.
  • 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.
  • 2013. Linking offshore stratigraphy to onshore paleotopography: The Late Jurassic-Paleocene evolution of the south Norwegian margin. Geological Society of America Bulletin. 1164-1186.
  • 2012. Shelf genesis revisited. Journal of Sedimentary Research. 133-148.
  • 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.
  • 2011. Borehole evidence for wing-like clastic intrusion complexes on the western Norwegian margin. Journal of the Geological Society. 1075-1078.
  • 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.
  • 2009. Impact of eustatic amplitude variations on shelf morphology, sediment dispersal, and sequence stratigraphic interpretation: Icehouse versus greenhouse systems. Geology. 587-590.
  • 2013. Importance of onshore-offshore relationships for regional stratigraphic development – examples from the Norwegian margin.
Academic lecture
  • 2012. Source-to-sink: Concepts, cases and challenges (keynote).
  • 2011. Use of source-to-sink concepts to provide insight to the stratigraphic record.
  • 2011. The use of a source-to-sink methodology in petroleum exploration – examples from the Mesozoic of the North Sea.
  • 2011. Source-to-sink analysis of modern and ancient sedimentary systems.
  • 2011. Cretaceous slope fan system in the Norwegian North Sea – implications for ancient onshore topography.
  • 2010. Using modern rift analogues to constrain paleo drainage along the Norwegian margin.
  • 2010. Source-to-sink in rift basins – predicting reservoir distribution in ancient, subsurface systems.
  • 2010. Partitioning and preservation of sediment over multiple time-scales.
  • 2010. Onshore-offshore sediment dispersal in the Golo source-to-sink system during the late Quaternary.
  • 2010. 30 years of sequence stratigraphy - what have we learnt and what's next?
  • 2009. Multiple time-scales in the development of source-to-sink systems.
  • 2008. The influence of eustatic sea-level variations on shelf morphology and sediment distribution in source-to-sink systems.
  • 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.
  • 2007. Transportation and delivery of sediments from river catchments to basin floor fans.
  • 2007. 3-D modelling of coastal plain deposits from the Blackhawk Formation, Estern Utah.
  • 2005. Depositional dip correlations from the shorface and estuarine systems in the Book Cliffs, eastern Utah.
  • 2005. 3D-modelling of coastal plain deposits from the Blackhawk Formation, eastern Utah.
Short communication
  • 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
  • 2009. Source-to-sink systems : sediment partitioning and geomorphic development over multiple time-scales.
Academic chapter/article/Conference paper
  • 2010. Source-to-sink systems on passive margins: theory and practice with an example from the Norwegian continental margin. 8 pages.
  • 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.
  • 2013. Timing of brittle deformation associated with the Nordfjord-Sogn Detachment Zone: preliminary results from K/Ar illite dating.
  • 2010. Factors controlling stratigraphy and the use of uniformitarianism when interpreting the stratigraphic record.
Academic literature review
  • 2016. Deciphering earth's natural hourglasses: Perspectives on source-to-sink analysis. 1008-1033.
  • 2009. Relationships between morphological and sedimentological parameters in source-to-sink systems: a basis for predicting semi-quantitative characteristics in subsurface systems. 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.