William Helland-Hansen joined the Department of Earth Science, University of Bergen, in 1997 after 12 years at Norsk Hydro (Research Centre 1985-1995, Production 1995-1997). From 1998 he has been a full professor at University of Bergen and from 2007 an adjunct professor at the University Centre of Svalbard (UNIS).

His research covers a wide range of aspects related to clastic sedimentology. Main research topics are sequence stratigraphy, trajectory analysis, clinoform dynamics, source-to-sink, shallow-marine sedimentation, spatial and temporal structure of basin fills, and coastal change in the 21^st century. His research data have been gathered primarily from the Norwegian Shelf and Svalbard. William has participated in many larger projects, as project leader and principal investigator.  Through his career he has been the main supervisor for more than 50 MSc students and 10PhD candidates.  

In addtion to his research, William has a special interest in public outreach connected to  the natural history of his home region. He was the chief editor of the bestseller Naturhistorisk Vegbok, Hordaland ("Natural History Pathfinder for Hordaland") and has been the editor of the follow-up webside grind.no. https://www.grind.no/en. He is currently the editor of a coffee-table book about Norway's 100 finest geological localities, to be published in 2024.

 

• Initiator, chief-editor and project leader of the book project Natural History Pathfinder for Hordaland (“Naturhistorisk Vegbok, Hordaland”)(Nord4, 2004) which is a popularised presentation of bedrock geology, quaternary geology, zoology, botany and meteorology, applied to the region of Hordaland, Western Norway. The book contains 568 pages and 1750 illustrations, was published October 2004, and has been a local best-seller (20 000 copies sold).
• University representative and project participant in the establishment phase for the science centre in Bergen, VILVITE, opened May 31st, 2007. VILVITE is a centre for informal learning with the goal to increase the recruitment to natural sciences. In the project I was in charge of the weather and climate section (one of three focussed themes for the centre), scientific co-editor for all exhibits (about 80) and the editor for all labelling and textual information that went into the centre.
• Co-editor and from 2013-2020 project leader and editor of the portal of GRIND (http://grind.no/) at the University of Bergen – a new platform and digital gateway to “man and landscape”; a canal to the researchers and the sources of knowledge built on the books Cultural History and Natural History Pathfinders for Hordaland (released December 2016).
• Co-editor “Ei halvøy i Hardanger” (Nord4, 2013). Stories about nature and culture at Neshalvøya, Hardanger, Western Norway. This book is a close-up look into all aspects of nature at this small peninsula, ranging from plants to animals, geology and cultural history. 150 pages.
• From 2014 member of editorial board of “Naturen”, Norway’s oldest popular science magazine
• 2017-2018 Leader of team developing new exhibitions in geology for re-opening of the Natural History Museum, University of Bergen 
• 2022-2024 Editor of coffee-table book about the 100 finest geological localities in Norway
• 2021-2023 Main editor of special issue of Norwegian Journal of Geology on the history of the Department of Earth Science, University of Bergen 

GEOV107 (UiB) Introduction to Sedimentology

SDG207 (UiB) Energy transition

GEOV362 (UiB) Integrated tectonics and sedimentology field course

AG323/823 (UNIS) Sequence Stratigraphy - a tool for Basin Analysis

Conference lecture

• William Helland-Hansen; Tor Oftedal Sømme (2010). 30 years of sequence stratigraphy - what have we learnt and what's next?. (external link)
• William Helland-Hansen (2010). Sequence Stratigraphy Seminar. (external link)
• Scott Bullimore; Frode Møller Liestøl; Sverre Henriksen et al. (2001). Using seismic attribute maps to interpret depositional environmnets: Implications for sequence stratigraphy. (external link)
• Tore Grane Klausen; Alf Eivind Ryseth; William Helland-Hansen et al. (2016). Progradational and Backstepping Shoreface Deposits in the Snadd Formation. (external link)
• Tore M. Løseth; William Helland-Hansen; Ron J. Steel (2000). Controls on the basinward extent of shallow-marine sandstone tongues. (external link)
• Tor Oftedal Sømme; David J. W. Piper; Mark E. Deptuck et al. (2010). Onshore-offshore sediment dispersal in the Golo source-to-sink system during the late Quaternary. (external link)
• Tor Oftedal Sømme; William Helland-Hansen; O.J. Martinsen et al. (2007). LONG-TERM DELIVERY AND DISTRIBUTION OF SEDIMENTS FROM RIVER CATCHMENTS TO BASIN FLOOR FANS. (external link)
• Tor Oftedal Sømme; Ole J. Martinsen; William Helland-Hansen et al. (2011). Use of source-to-sink concepts to provide insight to the stratigraphic record. (external link)
• Tore Aadland; William Helland-Hansen (2016). Global compilation of coastline change at river mouths. (external link)
• Dicky Harishidayat; Benjamin Emmel; Gerben de Jager et al. (2019). Methodology for Paleo-Water Depth reconstruction for continental margin clinoform systems. (external link)
• Christian Haug Eide; Reidar Muller; William Helland-Hansen (2016). Relating water-discharge and catchment area in modern and ancient catchments. (external link)
• Tore Grane Klausen; William Helland-Hansen; Alf Ryseth et al. (2013). Sedimentology, reservoir geometry and paleogeography of the Mid- to Late Triassic Snadd Formation of the Barents Sea. (external link)
• William Helland-Hansen; O.J. Martinsen (1997). Shoreline trajectories and shoreline trajectory classes: Building blocks for sequence description. (external link)
• O.J. Martinsen; A. Ryseth; William Helland-Hansen (1997). Sandrich, eustarine valley-fill sandstones, rusty member, Ericson sandstone (Campanian), SW Wyoming: Sedimentology, stratigraphy and tectonic significance. (external link)
• Tore Grane Klausen; Atle Mørk; William Helland-Hansen (2013). The Upper Triassic Paralic Deposits of the De Geerdalen Formation on Hopen: Analogy to the Subsurface Snadd Formation. (external link)
• Paul J. Valle; John G. Gjelberg; William Helland-Hansen (2000). Salt tectonics and general stratigraphy in the Lower Congo Basin offshore Angola, West Africa; an overview. (external link)
• Ronald J. Steel; William Helland-Hansen (2009). Siliciclastic shelf margins revisited. (external link)
• R. Granberg; A. Johannessen; J. Thorsen et al. (2007). Sedimentære facies av Neogene submarine kanalsystemer offshore Angola. (external link)
• M.C Ryan; William Helland-Hansen; E.P Johannesson et al. (2005). The basin-fill architecture and depositional history of a Lower Tertiary deltaic complex in the Porcupine basin, offshore western Ireland. (external link)
• Scott Alan Bullimore; William Helland-Hansen (2007). Facies associations and shoreline trajectories of the Brent deltaic system. (external link)
• William Helland-Hansen (2011). Trajectory analysis: Examples of how a new stratigraphic approach can be applied to the Norwegian Continental shelf succession (keynote). (external link)
• Scott Bullimore; Frode Møller Liestøl; Sverre Henriksen et al. (2002). Using seismic attribute maps to interpret depositional environmnets: Implications for sequence stratigraphy. (external link)
• Maaike de Natris; William Helland-Hansen (2012). Where has all the time gone? Disentangling time in the Mid-Late Jurassic Tarbert Formation, northern North Sea. (external link)
• William Helland-Hansen; Helge Kollsete Gjelberg (2012). Towards a Hierarchical Classification of Clinoforms. (external link)
• Kristian Helle; S. Henriksen; R. Kyrkjebø et al. (2007). Interplay between clinoform geometry and growth faulting in a Pleistocene progradational margin: southern margin Columbus Basin, offshore Venezuela. (external link)
• William Helland-Hansen (2007). Trajectory analysis: concepts, cases and challenges. (external link)
• Scott Alan Bullimore; William Helland-Hansen (2005). Coastal plain and foreshore/shoreface facies belt and accompanying shoreline trajectories: How are they related and how can their interdependence be used predictively?. (external link)
• Morten Smelror; Lars Harald Blikra; John F. Dehls et al. (2003). GEO-MOTION - A new European research network on "Land, water, sea level changes and the Europena habitat".. (external link)
• Tor Oftedal Sømme; William Helland-Hansen; O.J. Martinsen et al. (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. (external link)
• William Helland-Hansen; K. Bjørlykke; R. Steel (2008). SES-01: General Contributions to Sedimentology. (external link)
• Thomas Thuesen; Haflidi Haflidason; William Helland-Hansen et al. (2019). Sedimentation rates in recently glaciated fjord-valley systems - Insights from marine data in Fjærlandsfjorden, a tributary of Sognefjorden. (external link)
• Christian Haug Eide; William Helland-Hansen (2016). Mass-balance of an Induan (Early Triassic) Fennoscandian-derived source-to-sink system in the Barents Sea: Implications for early Triassic landscape and exhumation. (external link)
• William Helland-Hansen (2006). Walther’s Law, Sequence Stratigraphy, and Trajectory Analysis. (external link)
• Vegard Bruaset; Alfred Båtevik; Knut Georg Jakobsen et al. (1999). An anomalous thick, elongated sandbody, Tarbert Formation, Gullfaks Field: High accommodation fluvial channel stacking, incised valley deposition or both?. (external link)
• Tore Grane Klausen; William Helland-Hansen; Alf Ryseth (2015). Meanders to ribbons: basin-scale deltaic evolution in the Barents Sea offshore Northern Norway. (external link)
• Thomas Hagen Thuesen; Haflidi Haflidason; William Shedd Helland-Hansen et al. (2025). Quantifying the sediment fill of Fjærlandsfjorden, a tributary fjord of Sognefjorden.. (external link)
• Tore Grane Klausen; William Helland-Hansen; Reidar Müller (2016). Quantitative clinoform characterization –Triassic Barents Sea offshore Northern Norway. (external link)
• William Helland-Hansen; Robert Gawthorpe (2014). Four decades of Sequence Stratigraphy: Musings on a mature method. (external link)
• William Helland-Hansen; Tor Oftedal Sømme; Ian Lunt et al. (2012). Source-to-sink: Concepts, cases and challenges (keynote). (external link)
• Espen Simonstad; William Helland-Hansen; John G. Gjelberg (2012). Paleogeopraphy and depositional environment of Grumantbyen Formation (Paleocene), Svalbard. (external link)
• William Helland-Hansen; Sten-Andreas Grundvåg; Maria Jensen et al. (2016). The Spitsbergen Paleogene Central Basin succession: New insights and implications for subsurface Barents Sea. (external link)
• Snorre Olaussen; Geir Birger Larssen; William Helland-Hansen et al. (2018). The outcropping strata in Kong Karls Land archipelago, Arctic Norway; a key reference point for the Upper Triassic to Lower Cretaceous succession in the northern Barents Sea. (external link)
• Sten-Andreas Grundvåg; William Helland-Hansen (2018). Evidence of hyperpycnally fed turbidites in a basin floor setting, Eocene of Spitsbergen, Arctic Norway. (external link)
• William Helland-Hansen; Sten-Andreas Grundvåg; Tore Aadland (2017). Estimating basin filling times without chronostratigraphic data: An example from the Paleogene foreland basin fill of Spitsbergen. (external link)
• Christian Haug Eide; Tore Grane Klausen; Ingrid Margareta Anell et al. (2016). Source-to-sink and mass-balance of the entire Triassic Barents Sea - Ideas, Plans and preliminary results. (external link)
• Tor Oftedal Sømme; William Helland-Hansen; Ole J. Martinsen et al. (2007). Transportation and delivery of sediments from river catchments to basin floor fans. (external link)
• Tor Oftedal Sømme; M. E Deptuck; William Helland-Hansen et al. (2009). Multiple time-scales in the development of source-to-sink systems. (external link)
• O.J. Martinsen; A Ryseth; William Helland-Hansen (1997). Sandrich, Estuarine Valley-Fill Sandstones, Rusty Member, Ericson Sandstone (Campanian), SW Wyoming: Sedimentology, Stratigraphy and Tectonic Significance. (external link)
• Christian Haug Eide; Tore Grane Klausen; Denis Katkov et al. (2017). Linking an Early Triassic delta to antecedent topography: source-to-sink study of the southwestern Barents Sea margin. (external link)
• Ole J. Martinsen; William Helland-Hansen (2009). Source-to-sink: Principles, Methods and Applications. (external link)
• Tore M Løseth; William Helland-Hansen; Ron J. Steel (2000). Controls on the basinward extent of shallow-marine sandstone tongues. (external link)
• William Helland-Hansen; Tor Oftedal Sømme; Bjarte Hannisdal et al. (2010). Partitioning and preservation of sediment over multiple time-scales. (external link)
• Truls Sejrup; William Helland-Hansen (2003). Sedimentologi av fin- til grovkornete, lyse sandsteiner, Kvamshesten Bassenget, Midtre Devon, Sunnfjord, NGF,. (external link)
• Kristian Helle; Greg Browne; Peter King et al. (2003). Sedimentologi og geometri av indre/midtre submarin-vifte avestjingar, Mt. Messengerformasjonen (Miocen), Taranaki Bassenget, New. (external link)
• Tore Grane Klausen; William Helland-Hansen; Reidar Muller (2015). Considerations surrounding decompaction and restoration of clinoforms –towards quantification of prodelta and shelf edge geometries in the Triassic succession of the Barents Sea. (external link)
• S Henriksen; William Helland-Hansen; Scott Alan Bullimore et al. (2007). Shelf edge and shoreline trajectories, seismic geomorphology and stratigraphy along depositional profiles; a dynamic approach to sequence stratigraphy. (external link)
• Kristian Helle; William Helland-Hansen (2007). Architecture in wave-fluvio dominated depositional systems with contrasting shoreline trajectory properties: Kenilworth member, Blackhawk Formation, Utah, USA. (external link)
• William Helland-Hansen; Sten-Andreas Grundvåg; Tore Aadland (2017). The coupled West Spitsbergen fold-and-thrust-belt – Central Tertiary Basin source-to-sink system. (external link)
• Sten-Andreas Grundvåg; William Helland-Hansen; Polina Safronova (2017). Turbidites in the Eocene of Spitsbergen: can they tell us something about the Sørvestsnaget Basin?. (external link)
• Atle Rotevatn; Gijs Allard Henstra; Thomas Berg Kristensen et al. (2017). Tectono-sedimentary basin studies in the northern North Atlantic: Lofoten-Vesterålen, Western Barents Sea and the East Greenland Rift. (external link)
• William Helland-Hansen (2009). Clinoforms and Clinothems: Concepts, Cases and Challenges. (external link)
• William Helland-Hansen; Sten-Andreas Grundvåg; Tore Aadland (2017). Assessment of duration of basin filling without chronostratigraphic data: a case study from the Cenozoic foreland basin of Spitsbergen. (external link)
• William Helland-Hansen (2008). Shelf genesis revisited. (external link)
• Thomas Thuesen; Haflidi Haflidason; William Helland-Hansen et al. (2018). Source-to-sink in a western Norwegian fjord-valley system - How do landslides, floods and eroding glaciers influence sediment supply in the Holocene?. (external link)
• William Helland-Hansen (2008). Clinoforms and clinothems: Concepts and challenges. (external link)
• Albina Gilmullina; Tore Grane Klausen; William Helland-Hansen et al. (2018). Large-scale correlation and sedimentation rates throughout the Triassic Barents Sea mega-basin. (external link)
• Tore Grane Klausen; Inger Laursen; Alf Ryseth et al. (2013). Fluvial Geometries of a Triassic Coastal Plain System in the Norwegian Barents Sea –3D Seismic Imaging of the Ladinian to Early Norian Snadd Formation. (external link)
• Christian Haug Eide; Tore Grane Klausen; Denis Katkov et al. (2017). Source-to-sink study of the southwestern Barents Sea margin: Using ancient catchments to constrain reservoir-quality sandstone. (external link)
• Paul J. Valle; John G. Gjelberg; William Helland-Hansen (2000). Salt tectonics and general stratigraphy in the Lower Congo Basin offshore Angola, West Africa; an overview. (external link)
• William Helland-Hansen (2015). Deciphering Earth’s Natural Hourglasses: Perspectives on Source-to-Sink Analysis. (external link)
• Sten-Andreas Grundvåg; William Helland-Hansen (2010). Stratigraphic architecture of combined fluvial-wave dominated deltas in the Eocene Central Basin, Nathorst Land, Spitsbergen. (external link)
• R Ranes; M Talbot; William Helland-Hansen (2003). Sedimentologi av røde silt og sandsteiner i Kvamshesten Bassenget, Midt-Devon, Sunnfjord, NGF,. (external link)
• Jord De Boer; Robert Gawthorpe; Ian R Sharp et al. (2011). Syn-rift Sedimentology and Stratigraphic Development of Footwall-Sourced Conglomeratic Depositional Systems; South Hadahid Block, Suez Rift, Egypt. (external link)
• Tor Oftedal Sømme; William Helland-Hansen; Ole J Martinsen et al. (2008). The influence of eustatic sea-level variations on shelf morphology and sediment distribution in source-to-sink systems. (external link)
• Helge Gjelberg; William Helland-Hansen (2011). Facies Analysis and Sandbody Geometry of the Paleogene Battfjellet Formation, Nordenskiold Land, Spitsbergen. (external link)
• Scott Bullimore; Sverre Henriksen; William Helland-Hansen (2002). Valley incision and basin floor fan deposition: An example from offshore Norway. (external link)
• Tore Grane Klausen; Inger Laursen; Alf Ryseth et al. (2012). Fluvial Geometries and Reservoir Characteristics of a Triassic Coastal Plain System in the Norwegian Barents Sea —3-D Seismic Imaging of the Ladinian to Early Norian Snadd Formation. (external link)
• S.A. Bullimore; William Helland-Hansen (2002). Coastal Plain Facies and Shoreface Thickness: a Predictive Relationship?. (external link)
• William Helland-Hansen; Kristian Helle (2007). Genesis of the over-thickened shoreface sandstones in Rannoch and Etive formations, the North Sea Brent delta. (external link)
• Sten-Andreas Grundvåg; William Helland-Hansen (2012). Outcrop and subsurface characterization of shelf-margin clinoform systems. (external link)
• Scott Bullimore; William Helland-Hansen (2004). Coastal plain and foreshore/shoreface facies belts andaccompanying shoreline trajectories: How are they related and how can their interdependence be used predictively?. (external link)
• William Helland-Hansen; O.J. Martinsen (1997). Shoreline Trajectories and Shoreline Trajectory classes: Building Blocks for Sequence Description. (external link)
• Albina Gilmullina; Tore Grane Klausen; William Helland-Hansen et al. (2019). Large-scale seismic correlation and sequence stratigraphy in the Triassic of the Barents Sea. (external link)

Academic literature review

• Tor Oftedal Sømme; William Helland-Hansen; Ole J. Martinsen et al. (2009). Relationships between morphological and sedimentological parameters in source-to-sink systems: a basis for predicting semi-quantitative characteristics in subsurface systems. (external link)
• Bjørn Burr Nyberg; Rob Gawthorpe; William Helland-Hansen (2018). The distribution of rivers to terrestrial sinks: Implications for sediment routing systems. (external link)
• Sten-Andreas Grundvåg; Erik P. Johannessen; William Helland-Hansen et al. (2014). Depositional architecture and evolution of progradationally stacked lobe complexes in the Eocene Central Basin of Spitsbergen. (external link)
• William Helland-Hansen; Tor Oftedal Sømme; Ole Jakob Martinsen et al. (2016). Deciphering earth's natural hourglasses: Perspectives on source-to-sink analysis. (external link)
• William Helland-Hansen; G.J. Hampson (2009). Trajectory analysis: concepts and applications. (external link)
• Stefano Patruno; William Helland-Hansen (2018). Clinoform systems: Review and dynamic classification scheme for shorelines, subaqueous deltas, shelf edges and continental margins. (external link)

Conference poster

• Snorre Olaussen; Geir Birger Larssen; William Helland-Hansen et al. (2018). The outcropping strata in the Kong Karls Land archipelago, Arctic Norway; a key reference point for the Upper Triassic to Lower Cretaceous succession in the northern Barents Sea. (external link)
• Wictor A. Mork-Jansson; Snorre Olaussen; Atle Mørk et al. (2011). Lower Cretaceous gravity and sandy shelf deposits in Adventdalen, Spitsbergen - Results from drilled wells in Longyearbyen CO2 lab and nearby outcrops. (external link)
• Tore Grane Klausen; William Helland-Hansen (2015). Fluvial and prodeltaic systems of the Middle to Late Triassic Snadd Formation in the western Barents Sea. (external link)
• Tor Oftedal Sømme; William Helland-Hansen; Bjarte Hannisdal et al. (2010). Factors controlling stratigraphy and the use of uniformitarianism when interpreting the stratigraphic record. (external link)
• Ingine Strømsøyen; William Helland-Hansen; Greg Brown et al. (2003). Sedimentology of the Urenui Formation (miocene), Taranaki basin, New Zealand. (external link)
• Eivind Hanevik; Christian Sætre; William Helland-Hansen et al. (2011). Development of Hollendardalen Formation in Central Spitsbergen with a focus on stratigraphy, depositional environment, diagenesis and provenance. (external link)
• Albina Gilmullina; Tore Grane Klausen; William Helland-Hansen et al. (2019). Distribution and characteristics of the Triassic sequences in the Barents Sea mega-basin. (external link)
• Helge Kollsete Gjelberg; William Helland-Hansen; Frode Hadler-Jacobsen et al. (2012). Clinoform Variability within the Neogene Succession of the Campos Basin, Offshore SE Brazil. (external link)
• Tore Grane Klausen; Atle Mørk; William Helland-Hansen (2013). The Upper Triassic Paralic Deposits of the De Geerdalen Formation on Hopen, Svalbard: An Analog to the Subsurface Snadd Formation in the SW Barents Sea. (external link)
• Tore Grane Klausen; Inger Laursen; Alf Ryseth et al. (2013). Regional extent and sequence stratigraphy of the Middle to Upper Triassic Snadd Formation in the western Barents Sea. (external link)
• Takemi Murase; Tore Grane Klausen; Reidar Muller et al. (2015). Sedimentology of clinoformal successions; Kobbe and Snadd formations (Triassic), Barents Sea. (external link)
• Berit Husteli; Ivar Midtkandal; Maria Jensen et al. (2013). Three-dimensional heterogeneities in tidally influenced Triassic strata; new data to condition reservoir prediction performance of local CO2 storage on Svalbard. (external link)
• Malte Michel Jochmann; Maria Jensen; Snorre Olaussen et al. (2017). Spitsbergen and Greenland Paleogene Basins.. (external link)
• Sten-Andreas Grundvåg; Helge Kollsete Gjelberg; William Helland-Hansen et al. (2013). The outcrop and subsurface expression of shelf-margin clinoforms: the Eocene Battfjellet Formation, Spitsbergen. (external link)
• Sten-Andreas Grundvåg; William Helland-Hansen (2009). An integrated approach for improving reservoir prediction within shallow shelf to deep-water systems. (external link)
• Marte Gundersen; Snorre Olaussen; William Helland-Hansen (2010). Uppermost Triassic to Middle Jurassic tidal to shallow marine deposits in East Spitsbergen - an analogue to reservoir units in the southwestern Barents Sea. (external link)
• Wictor A. Mork-Jansson; Atle Mørk; Snorre Olaussen et al. (2010). Lower Cretaceous gravity and sandy shelf deposits in Adventdalen, Spitsbergen– a response of local tectonics?. (external link)
• M Smelror; L.H. Blikra; J.F. Dehls et al. (2003). Geo-motion - A new European research network on "Land, water and sea level changes and the European habitat". (external link)

Academic article

• Tore Aadland; William Helland-Hansen (2019). Progradation rates measured at modern river outlets: A first-order constraint on the pace of deltaic deposition. (external link)
• Tore Grane Klausen; Alf Eivind Ryseth; William Helland-Hansen et al. (2016). Progradational and backstepping shoreface deposits in the Ladinian to Early Norian Snadd Formation of the Barents Sea. (external link)
• William Shedd Helland-Hansen; Mathilde Bøttger Sørensen (2024). Institutt for geovitenskap, Universitetet i Bergen: Fra mineralsamling til breddeinstitutt. (external link)
• Sverre Henriksen; William Helland-Hansen; Scott Alan Bullimore (2011). Relationships between shelf-edge trajectories and sediment dispersal along depositional dip and strike: a different approach to sequence stratigraphy. (external link)
• William Helland-Hansen; Sten-Andreas Grundvåg (2020). The Svalbard Eocene-Oligocene (?) Central Basin succession: Sedimentation patterns and controls. (external link)
• Christian Haug Eide; Reidar Muller; William Helland-Hansen (2018). Using climate to relate water-discharge and area in modern and ancient catchments. (external link)
• Claudio Pellegrini; Stafano Patruno; William Helland-Hansen et al. (2020). Clinoforms and clinothems: Fundamental elements of basin infill. (external link)
• Tor Oftedal Sømme; David J.P. Piper; Mark E. Deptuck et al. (2011). Linking onshore–offshore sediment dispersal in the Golo source-to-sink system (Corsica, France) during the late quaternary. (external link)
• Gijs Allard Henstra; Robert Gawthorpe; William Helland-Hansen et al. (2017). Depositional systems in multiphase rifts: seismic case study from the Lofoten margin, Norway. (external link)
• R. Ravnås; Kristin Bondevik; William Helland-Hansen et al. (1997). Sedimentation history as an indicator of rift initiation and development: the Late Bajocian-Bathonian evolution of the Oseberg-Brage area, northern North Sea. (external link)
• Scott Alan Bullimore; Sverre Henriksen; Frode Møller Liestøl et al. (2005). Clinoform stacking patterns, shelf-edge trajectories and facies associations in Tertiary coastal deltas, offshore Norway: Implications for the prediction of lithology in prograding systems. (external link)
• Valentina Marzia Rossi; Niall William Paterson; William Helland-Hansen et al. (2019). Mud-rich delta-scale compound clinoforms in the Triassic shelf of northern Pangea (Havert Formation, south-western Barents Sea). (external link)
• Tore Aadland; Peter M. Sadler; William Helland-Hansen (2018). Geometric interpretation of time-scale dependent sedimentation rates. (external link)
• Tore Grane Klausen; Alf Eivind Ryseth; William Helland-Hansen et al. (2014). Spatial and temporal changes in geometries of fluvial channel bodies from the Triassic Snadd Formation of offshore Norway. (external link)
• Tor Oftedal Sømme; William Helland-Hansen; Ole J. Martinsen (2013). Quantitative aspects of stratigraphic onshoreoffshore relationships along the western margin of southern Norway: implications for Late Mesozoic and Cenozoic topographic evolution. (external link)
• Paul J. Valle; John G. Gjelberg; William Helland-Hansen (2001). Tectonostratigraphic development in the Eastern Lower Congo Basin, offshore Angola, West Africa. (external link)
• Tore Grane Klausen; Reidar Müller; Jiri Slama et al. (2016). Evidence for Late Triassic provenance areas and Early Jurassic sediment supply turnover in the Barents Sea Basin of northern Pangea. (external link)
• Sten-Andreas Grundvåg; William Helland-Hansen; Erik P. Johannessen et al. (2014). The depositional architecture and facies variability of shelf deltas in the Eocene Battfjellet Formation, Nathorst Land, Spitsbergen. (external link)
• Stefano Patruno; Vittorio Scisciani; William Helland-Hansen et al. (2019). Upslope-climbing shelf-edge clinoforms and the stepwise evolution of the northern European glaciation (lower Pleistocene Eridanos Delta system, U.K. North Sea): When sediment supply overwhelms accommodation. (external link)
• Tor Oftedal Sømme; William Helland-Hansen; Didier Granjeon (2010). Impact of eustatic amplitude variations on shelf morphology, sediment dispersal, and sequence stratigraphic interpretation: Icehouse versus greenhouse systems: REPLY. (external link)
• Tor Oftedal Sømme; T.O. Sømme; William Helland-Hansen et al. (2009). Impact of eustatic amplitude variations on shelf morphology, sediment dispersal, and sequence stratigraphic interpretation: Icehouse versus greenhouse systems. (external link)
• Kristian Helle; William Helland-Hansen (2009). Genesis of an over-thickened shoreface sandstone tongue: The Rannoch and Etive formations of the Middle Jurassic Brent delta, North Sea. (external link)
• Tore Grane Klausen; Bjørn R. Nyberg; William Helland-Hansen (2019). The largest delta plain in Earth's history. (external link)
• Bjørn R. Nyberg; William Helland-Hansen; Rob Gawthorpe et al. (2018). Revisiting morphological relationships of modern source-to-sink segments as a first-order approach to scale ancient sedimentary systems. (external link)
• Ole J Martinsen; Alf Ryseth; William Helland-Hansen et al. (1999). Stratigraphic base level and fluvial architecture: Ericson Sandstone (Campanian), Rock Springs Uplift, SW Wyoming, USA. (external link)
• Christian Haug Eide; Tore Grane Klausen; Denis Katkov et al. (2017). Linking an Early Triassic delta to antecedent topography: Source-to-sink study of the southwestern Barents Sea margin. (external link)
• Sverre Henriksen; Gary J. Hampson; William Helland-Hansen et al. (2009). Shelf edge and shoreline trajectories, a dynamic approach to stratigraphic analysis. (external link)
• William Shedd Helland-Hansen (2024). 50 år med forskning og undervisning i petroleumsgeologi ved UiB. (external link)
• Sten-Andreas Grundvåg; William Helland-Hansen; Erik P. Johannessen et al. (2004). The depositional architecture and facies variability of shelf deltas in the Eocene Battfjellet Formation, Nathorst Land, Spitsbergen. (external link)
• Mads Engholm Jelby; Sten-Andreas Grundvåg; William Helland-Hansen et al. (2019). Tempestite facies variability and storm‐depositional processes across a wide ramp: Towards a polygenetic model for hummocky cross‐stratification. (external link)
• William Helland-Hansen; O.J. Martinsen; S.B. Flood et al. (1997). Norsk nomenklatur for sekvensstratigrafi. (external link)
• Tore Grane Klausen; William Helland-Hansen (2018). Methods for restoring and describing ancient Clinoform surfaces. (external link)
• William Helland-Hansen; O.J. Martinsen; S.B. Flood et al. (1997). Norsk nomenklatur for sekvensstratigrafi. (external link)
• Marc Christopher Ryan; William Helland-Hansen; Erik P. Johannessen et al. (2009). Erosional vs. accretionary shelf margins: the influence of margin type on deepwater sedimentation: an example from the Porcupine Basin, offshore western Ireland. (external link)
• Aleksandra Smyrak-Sikora; Peter Betlem; Victoria Sjøholt Engelschiøn et al. (2025). Phanerozoic paleoenvironmental and paleoclimatic evolution in Svalbard. (external link)
• Tore Grane Klausen; Alf Eivind Ryseth; William Helland-Hansen et al. (2015). Regional development and sequence stratigraphy of the Middle to Late Triassic Snadd Formation, Norwegian Barents Sea. (external link)
• Tore Løseth; William Helland-Hansen (2001). Quantification and evaluation of controls on coastal sandstone pinchout. (external link)
• Tore Grane Klausen; Reidar Muller; Jiri Slama et al. (2017). Depositional history of a condensed shallow marine reservoir succession: stratigraphy and detrital zircon geochronology of the Jurassic Stø Formation, Barents Sea. (external link)
• Tore Aadland; Gary Hampson; William Helland-Hansen (2022). A comparison of ancient deltaic shoreline progradation with modern deltaic progradation rates: Unravelling the temporal structure of the shallow-marine Blackhawk Formation, Upper Cretaceous Western Interior Seaway, USA. (external link)
• Snorre Olaussen; Geir Birger Larssen; William Helland-Hansen et al. (2018). Mesozoic strata of Kong Karls Land, Svalbard, Norway; a link to the northern Barents Sea basins and platforms. (external link)
• William Helland-Hansen; Ronald J. Steel; Tor Oftedal Sømme (2012). Shelf genesis revisited. (external link)
• Scott Alan Bullimore; William Helland-Hansen (2009). Trajectory analysis of the Brent Group (Jurassic), Northern North Sea: Contrasting depositional patterns during the advance of a major deltaic system. (external link)
• Björn Johan Emil Burr Nyberg; Albina Gilmullina; William Helland-Hansen et al. (2025). Global coastal exposure patterns by coastal type from 1950 to 2050. (external link)
• Wilson Tumushabe; William Helland-Hansen; Betty Nagudi et al. (2022). Quantification of reservoir rock properties (Porosity, Permeability and Vshale) in the reservoir rock units of South Lake Albert Basin, Albertine Rift, Western Uganda. (external link)
• Sten-Andreas Grundvåg; William Helland-Hansen; Erik P. Johannessen et al. (2023). Deep-water sand transfer by hyperpycnal flows, the Eocene of Spitsbergen, Arctic Norway. (external link)
• William Helland-Hansen (2010). Facies and stacking patterns of shelf-deltas within the Palaeogene Battfjellet Formation, Nordenskiöld Land, Svalbard: implications for subsurface reservoir prediction. (external link)
• Björn Johan Emil Burr Nyberg; William Shedd Helland-Hansen; Robert Leslie Gawthorpe et al. (2021). Assessing first-order BQART estimates for ancient source-to- sink mass budget calculations. (external link)

Popular science article

• William Helland-Hansen; Sigrid Næsheim (2021). Fra deltasand til sandsteinsklipper: Ny kunnskap fra Svalbards jordhistoriearkiv. (external link)
• William Helland-Hansen (2019). Den store fjellkjededebatten. (external link)

Lecture

• William Helland-Hansen; Christian Haug Eide; Tore Grane Klausen et al. (2017). Internasjonal forskningsgruppe studerer triaslagrekken på Svalbard og i Barentshavet med nytt blikk: Ny forståelse av et gigantisk elve- og deltasystem. (external link)
• Tor Oftedal Sømme; Ole J Martinsen; William Helland-Hansen (2013). Importance of onshore-offshore relationships for regional stratigraphic development – examples from the Norwegian margin. (external link)
• William Helland-Hansen (2010). Glimt fra geofaglig petroleumsforskning. (external link)
• Christian Haug Eide; Tore Grane Klausen; William Helland-Hansen (2017). An integrated view of sedimentary systems in the Triassic Barents Sea. (external link)
• Gijs Allard Henstra; Atle Rotevatn; Robert Gawthorpe et al. (2013). Lower Cretaceous Evolution of the Vesterdjupet Fault Zone, Lofoten Margin, North Norway. (external link)
• Christian Haug Eide; William Helland-Hansen; Tore Grane Klausen (2015). Source-to-sink study of Fennoscandian-derived sedimentary fans of the Havert Formation. What do I know and what do I want to know. (external link)
• Albina Gilmullina; Tore Grane Klausen; William Helland-Hansen et al. (2019). Распространение и характеристика триасовых отложений Баренцевоморского бассейна (Норвежский и Российский сектор). (external link)
• Tore Aadland; Christian Haug Eide; William Helland-Hansen (2016). Methodologies to understand the time represented by siliciclastic sedimentary deposits: Applied on an Induan Fennoscandia-derived sedimentary fan in the South-west Barents Sea. (external link)
• Kei Ogata; Alvar Braathen; Jan Tveranger et al. (2011). GeC - Geological Input to CO2 storage: from outcrop to simulator. (external link)
• William Helland-Hansen (2009). Clinoforms and clinothems: Concepts, cases, challenges. (external link)

Popular science book chapter

• William Shedd Helland-Hansen (2025). 1911 Bjørn Helland-Hansen og professorsaken. (external link)
• William Shedd Helland-Hansen (2025). 2004 Naturhistorisk Vegbok. (external link)

Master’s thesis

• Ole-Marius Solvang; Christian Haug Eide; William Helland-Hansen et al. (2017). Sedimentological and petrographical investigations of the Early Triassic Vardebukta Formation on western Spitsbergen. (external link)
• Truls Sejrup; William Helland-Hansen (2004). Sedimentology of fine- to coarse grained grey sandstones in the Kvamshesten Basin (M.Devonian, Sunnfjord). (external link)
• Marte Høistad; William Helland-Hansen; Tine Lærdal (2004). Improved understanding of tidal sedimentation: A comparison between the subsurface Aalenian Ile Formation (Haltenbanken, Offshore Norway) and the modern Dee Estuary (UK). (external link)
• Marc Ryan; William Helland-Hansen (2004). The basin-fill architecture and depositional history of a Lower Tertiary deltaic complex in the Porcupine basin, offshore western Ireland. (external link)

Exhibition production

• Siri Skretting Jansen; Øystein James Jansen; William Helland-Hansen et al. (2019). Krystaller - Se de vokser!. (external link)
• Øystein James Jansen; William Helland-Hansen; Haakon Fossen et al. (2019). En fjellkjedes vekst og fall. (external link)

Editorial/Leader article

• William Helland-Hansen (2009). Towards the standardization of sequence stratigraphy Discussion. (external link)

Popular science book

• William Helland-Hansen (2004). Saltvannsfisk i Hordaland. (external link)
• Svein Nord; William Helland-Hansen; Torstein Solhøy (2013). Ei halvøy i Hardanger, Natur- og kulturforteljingar frå Neshalvøya. (external link)
• William Shedd Helland-Hansen (2024). Landskapet forteller. 100 historier om Norges geologi. (external link)
• William Helland-Hansen (2004). Naturhistorisk vegbok. Hordaland. (external link)

Professional article

• Tore Grane Klausen; Björn Johan Emil Burr Nyberg; William Helland-Hansen (2019). The largest delta plain in Earth’s history. (external link)
• Tore Grane Klausen; William Helland-Hansen (2019). The largest delta plain in Earth’s history. (external link)
• Brian W Romans; Julie C Fosdick; Miquel Poyatos More et al. (2020). Editorial: Sedimentary System Response to External Forcings: A Process-Based Perspective. (external link)

Academic book chapter

• William Helland-Hansen (2004). Petroleumsrikdommene utenfor Hordalandskysten. (external link)
• Ole J. Martinsen; Tor Oftedal Sømme; John B. Thurmond et al. (2010). Source-to-sink systems on passive margins: theory and practice with an example from the Norwegian continental margin. (external link)

Doctoral thesis (PhD)

• William Helland-Hansen (1995). Sequences, systems tracts and surfaces : depositional responses to varying rates of sediment supply and accommo- dation. (external link)
• Scott Bullimore; William Helland-Hansen (2004). Shoreline and shelf-edge trajectories: Effects upon facies, environments and stratigraphic architecture in wave-dominated regressive depositional systems. (external link)
• Tore Aadland; William Helland-Hansen (2019). Disentangling time from siliciclastic sedimentary rocks. (external link)
• Albina Gilmullina; Christian Haug Eide; Tore Grane Klausen et al. (2021). Stratigraphy, sediment volumes and source-to-sink of the Triassic Greater Barents Sea Basin and surrounding Arctic Region. (external link)

Book anthology

• Scott A. Bullimore; William Helland-Hansen; Sverre Henriksen et al. (2008). SHORELINE TRAJECTORY AND ITS IMPACT ON COASTAL DEPOSITIONAL ENVIRONMENTS: AN EXAMPLE FROM THE UPPER CRETACEOUS MESAVERDE GROUP, NORTHWESTERN COLORADO, U.S.A. (external link)

Journal corrigendum

• Tore Grane Klausen; William Helland-Hansen (2019). Erratum: Methods for restoring and describing ancient clinoform surfaces (Journal of Sedimentary Research DOI: 10.2110/jsr.2018.8). (external link)

See a complete overview of publications in Cristin.

RECENT PUBLICATIONS

Tumushabe, M. W., Helland-Hansen, W., Nagudi, B., Echegu, S., & Aanyu, K. (2022). Quantification of reservoir rock properties (Porosity, Permeability and Vshale) in the reservoir rock units of South Lake Albert Basin, Albertine Rift, Western Uganda. Journal of African Earth Sciences, 185, 104410.

Helland‐Hansen, W., & Grundvåg, S. A. (2021). The Svalbard Eocene‐Oligocene (?) Central Basin succession: Sedimentation patterns and controls. Basin Research, 33, 729-753.

Helland-Hansen, W., & Solem Næsheim, S. (2021). Fra deltasand til sandsteinsklipper: Ny kunnskap fra Svalbards jordhistoriearkiv. Naturen, 145(2-03), 101-111.

Nyberg, B., Helland‐Hansen, W., Gawthorpe, R., Tillmans, F., & Sandbakken, P. (2021). Assessing first‐order BQART estimates for ancient source‐to‐sink mass budget calculations. Basin Research, 33, 2435-2452.

Pellegrini, C., Patruno, S., Helland‐Hansen, W., Steel, R. J., & Trincardi, F. (2020). Clinoforms and clinothems: Fundamental elements of basin infill. Basin Research, 32, 187-205.

Romans, B. W., Fosdick, J. C., Poyatos-Moré, M., & Helland-Hansen, W. (2020). Editorial: Sedimentary System Response to External Forcings: A Process-Based Perspective. Front. Earth Sci, 8, 591420.

Jelby, M. E., Grundvåg, S. A., Helland‐Hansen, W., Olaussen, S., & Stemmerik, L. (2020) Tempestite facies variability and storm‐depositional processes across a wide ramp: Towards a polygenetic model for hummocky cross‐stratification. Sedimentology 67, 742–781

Helland-Hansen, W. (2019) Den store fjellkjededebatten. Naturen, 143(04), 142-147.

Patruno, S., Scisciani, V., Helland‐Hansen, W., D'Intino, N., Reid, W., & Pellegrini, C. (2019). Upslope‐climbing shelf‐edge clinoforms and the stepwise evolution of the northern European glaciation (lower Pleistocene Eridanos Delta system, UK North Sea): When sediment supply overwhelms accommodation. Basin Research.

Klausen, T. G., Nyberg, B., & Helland-Hansen, W. (2019). The largest delta plain in Earth’s history. Geology, 47(5), 470-474.

Aadland, T., & Helland‐Hansen, W. (2019). Progradation Rates Measured at Modern River Outlets: A First‐Order Constraint on the Pace of Deltaic Deposition. Journal of Geophysical Research: Earth Surface, 124(2), 347-364.

Klausen, T. G., & Helland-Hansen, W. (2019). Methods for Restoring and Describing Ancient Clinoform Surfaces. Journal of Sedimentary Research, 89(10), 918-918.

Rossi, V. M., Paterson, N. W., Helland‐Hansen, W., Klausen, T. G., & Eide, C. H. (2019). Mud‐rich delta‐scale compound clinoforms in the Triassic shelf of northern Pangea (Havert Formation, south‐western Barents Sea). Sedimentology, 66(6), 2234-2267.

Olaussen, S., Larssen, G. B., Helland-Hansen, W., Johannessen, E. P., Nøttvedt, A., Riis, F., ... & Worsley, D. (2019). Mesozoic strata of Kong Karls Land, Svalbard, Norway; a link to the northern Barents Sea basins and platforms. Norwegian Journal of Geology, 98(4).

Aadland, T., Sadler, P.M., and Helland-Hansen, W. (2018). Geometric interpretation of time-scale dependent sedimentation rates. Sedimentary    Geology, 371.32-40.

Klausen, T.G., Helland-Hansen, W., 2018. Methods for restoring and describing ancient clinoform surfaces. J. Sediment. Res. 88 (2), 241–259.

Nyberg, B.B., Gawthorpe, R., and Helland-Hansen, W. (2018). The distribution of rivers to terrestrial sinks: Implications for sediment routing systems. Geomorphology, 316, 1-23.

Nyberg, B.B., Helland-Hansen, W., Gawthorpe, R., Sandbakken, P., Eide, C.H., Sømme, T., Hadler-Jacobsen, F., and Leiknes, S. (2018). Revisiting morphological relationships of modern source-to-sink segments as a first-order approach to scale ancient sedimentary systems. Sedimentary Geology, 373, 111-133.

Eide, C.H., Muller, R., and Helland-Hansen, W. (2018). Using climate to relate water-discharge and area in modern and ancient catchments. Sedimentology, 65 (4), 1378-1389.

Patruno, S. and Helland-Hansen, W. (2018). Clinoforms and Clinoform systems: Review and dynamic classification scheme for shorelines, subaqueous deltas, shelf edges and continental margins. Earth-Science Reviews, 185, 202-233.

Henstra, G.A., Gawthorpe, R., Helland-Hansen, W., Ravnås, R., and Rotevatn, A. (2017). Depositional systems in multiphase rifts: seismic case study from the Lofoten margin, Norway. Basin Research, 29 (4), 447-469.

Klausen, T.G., Muller, R., Slama, J., Olaussen, S., Rismyhr, B., and Helland-Hansen, W. (2017). Depositional history of a condensed shallow marine reservoir succession: stratigraphy and detrital zircon geochronology of the Jurassic Stø Formation, Barents Sea. Journal of the Geological Society, 175 (1), 130-145.

Eide, C.H., Klausen, T.G., Katkov, D., Suslova, A., and Helland-Hansen, W. (2017). Linking an Early Triassic delta to antecedent topography: Source-to-sink study of the southwestern Barents Sea margin. Geological Society of America Bulletin, 130, 263-283.

Helland-Hansen, W., Sømme, T.O., Martinsen, O.J., Lunt, I., and Thurmond, J. (2016). Deciphering Earth’s natural  hourglasses: Perspectives on source-to-sink analysis. Journal of Sedimentary Research, 86, 1008-1033.

Klausen, T.G., Ryseth, A., Helland-Hansen, W., and Gjelberg, H.K. (2016). Progradational and backstepping shoreface deposits in the Ladinian to Early Norian Snadd Formation of the Barents Sea. Sedimentology, 63, 893-916.

Klausen, T.G., Ryseth, A.E., Helland-Hansen, W., Gawthorpe, R., and Lausen, I. (2015).  Regional development and sequence stratigraphy of the Middle to Late Triassic Snadd Formation, Norwegian Barents Sea. Marine and Petroleum Geology, 62, 102-122.

Grundvåg, S.-A., Johannessen, E. P., Helland-Hansen, W. and Plink-Björklund, P. (2014). Depositional architecture and evolution of progradationally stacked lobe complexes in the Eocene Central Basin of Spitsbergen. Sedimentology, 61, 535-569

Grundvåg, S.-A., Helland-Hansen, W., Johannessen, E.P., Olsen, A.H., and Stene, S.A.K. (2014). The depositional architecture and facies variability of shelf deltas in the Eocene Battfjellet Formation, Nathorst Land, Spitsbergen. Sedimentology, 2172-2204

Sømme, T.O., Helland-Hansen, W., Martinsen, O.J. (2014). Quantitative aspects of stratigraphic onshore-offshore relationships along the western margin of southern Norway: implications for Late Mesozoic and Cenozoic topographic evolution. Norwegian Journal of Geology, 93, 261-276.

Klausen, T.G., Ryseth, A.E., Helland-Hansen, W., Gawthorpe, R., and Laursen, I. (2014). Spatial and Temporal Changes In Geometries of Fluvial Channel Bodies From the Triassic Snadd Formation of Offshore Norway. Journal of Sedimentary Research, 84, 567-585.

Sømme, T.O., Helland-Hansen, W & Martinsen, O.J., 2013, Quantitative aspects of stratigraphic onshore-offshore relationships along the western margin of southern Norway: implications for Late Mesozoic and Cenozoic topographic evolution. Norwegian Journal of Geology, Thematic issue: Onshore-offshore relationships on the North Atlantic Margin; Volume 93, 261-276.

Helland-Hansen, W., Steel, R.J. & Sømme, T.O. (2012) Shelf Genesis revisited. Journal of Sedimentary Research, 82 (3), s. 133-148

Henriksen, S., Helland-Hansen, W. & Bullimore, S. (2011): Relationships between shelf edge trajectories and sediment dispersal along depositional dip and strike; a different approach to sequence stratigraphy. Basin Research 23,3-21

Sømme, T.O.; Piper, D. J. W; Deptuck, M. E; Helland-Hansen, W. (2011). Linking Onshore–Offshore Sediment Dispersal in the Golo Source-to-Sink System (Corsica, France) During the Late Quaternary. Journal of Sedimentary Research, 81.(2) s. 118-137

Sømme, T.O.; Helland-Hansen, W.; Granjeon, D. (2010) Impact of eustatic amplitude variations on shelf morphology, sediment dispersal, and sequence stratigraphic interpretation: Icehouse versus greenhouse systems: REPLY. Geology 2010 ;Volum 38.(6) s. E209-E209

Helland-Hansen, W. (2010): Facies and stacking patterns of shelf-deltas within the Palaeogene Battfjellet Formation, Nordenskiöld Land, Svalbard: Implications For Subsurface Reservoir Prediction. Sedimentology, 57, 190-208

Martinsen, O.J.; Sømme, T.O; Thurmond, J.B.; Helland-Hansen, W. Lunt, I. (2010)Source-to-sink systems on passive margins: theory and practice with an example from the Norwegian continental margin. I: Petroleum Geology: From Mature Basins to New Frontiers—Proceedings of the 7th Petroleum Geology Conference. London: Geological Society, London 2010 ISBN 978-1-86239-298-4. s. 913-920

Helland-Hansen, W. (2009): Towards the standardization of sequence stratigraphy – Discussion. Earth Science Reviews, 94, 95-97.

Henriksen, S., Hampson, G.J., Helland-Hansen, W., Johannessen, E.P. and Steel, R.J. (eds.) (2009): Trajectory analysis in stratigraphy. Basin Research 21 (special issue)

Helland-Hansen, W.  and Hampson, G.J. (2009): Trajectory analysis – Concepts and applications. Basin Research, 21, 454-483

Bullimore, S.A. & Helland-Hansen, W. (2009). Trajectory analysis of the Brent Group (Jurassic), Northern North Sea: Contrasting depositional patterns during the advance of a major deltaic system. Basin Research, 21, 559-572

Helle, K. & Helland-Hansen, W. (2009): Genesis of an overthickened shoreface sandstone tongue: The Rannoch-Etive formations (Mid Jurassic Brent delta), North Sea. Basin Research, 21, 620-643

Henriksen, S., Hampson, G.J., Helland-Hansen, W., Johannessen, E.P. & Steel, R.J. (2009): Shelf edge and shoreline trajectories, a dynamic approach to stratigraphic analysis. Basin Research, 21, 445-453

Ryan, M.C., Helland-Hansen, W., Johannessen E.P. & Steel, R.J. (2009): Erosional vs Progradational margins: the influence of basin physiography on deepwater sedimentation – an example from the Porcupine Basin, offshore western Ireland. Basin Research, 21, 676-703

Sømme, T.O., Helland-Hansen, W., Granjeon, D. (2009). Impact of eustatic amplitude variations on shelf morphology, sediment dispersal, and sequence stratigraphic interpretation: Icehouse versus greenhouse systems. Geology, 37, 7, 587-590.

Sømme, T.O., Helland-Hansen, W., Martinsen, O. & Thurmond, J. (2009) Relationships between morphological and sedimentological parameters in source-to-sink systems: a basis for predicting semi-quantitative characteristics in subsurface systems. Basin Research, 21, 361-387