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Browsing Bergen Open Research Archive by Author "Rotevatn, Atle"

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Now showing items 1-20 of 26

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    • Causes of bias and uncertainty in fracture network analysis 

      Peacock, David; Sanderson, David J.; Bastesen, Eivind; Rotevatn, Atle; Storstein, Tor H (Peer reviewed; Journal article, 2019-04-24)
      Fault and fracture networks are analysed to determine the deformation history and to help with such applications as engineering geology and fluidflow modelling. These analyses rely on quantifying such factors as length, ...
    • Contractional deformation of porous sandstone: Insights from the Aztec Sandstone, SE Nevada, USA 

      Fossen, Haakon; Zuluaga, Luisa F.; Ballas, Gregory; Soliva, Roger; Rotevatn, Atle (Peer reviewed; Journal article, 2015-05)
      Contractional deformation of highly porous sandstones is poorly explored, as compared to extensional deformation of such sedimentary rocks. In this work we explore the highly porous Aztec Sandstone in the footwall to the ...
    • Do deformation bands matter forflow? Insights from permeability measurements and flow simulations in porous carbonate rocks 

      Rotevatn, Atle; Fossmark, Heidi Synnøve Solli; Bastesen, Eivind; Thorsheim, Elin; Torabi, Anita (Peer reviewed; Journal article, 2017-02)
      We investigate the permeability and flow effects of deformation bands in porous granular carbonate rocks in Malta and use results from flow simulations to discuss the practical implications of deformation bands in carbonate ...
    • Evolution of a major segmented normal fault during multiphase rifting: The origin of plan-view zigzag geometry 

      Henstra, Gijs; Rotevatn, Atle; Gawthorpe, Steven L.; Ravnås, Rodmar (Peer reviewed; Journal article, 2015-05)
      This case study addresses fault reactivation and linkage between distinct extensional episodes with variable stretching direction. Using 2-D and 3-D seismic reflection data we demonstrate how the Vesterdjupet Fault Zone, ...
    • Fault-controlled fluid circulation and diagenesis along basin-bounding fault systems in rifts - Insights from the East Greenland rift system 

      Salomon, Eric; Rotevatn, Atle; Kristensen, Thomas Berg; Grundvåg, Sten-Andreas; Henstra, Gijs Allard; Meckler, Anna Nele; Albert, Richard; Gerdes, Axel (Journal article; Peer reviewed, 2020-11-05)
      In marine rift basins, deep-water clastics (>200 m) in the hanging wall of rift- or basin-bounding fault systems are commonly juxtaposed against crystalline “basement” rocks in the footwall. A distinct feature of such fault ...
    • From widespread faulting to localised rifting: Evidence from K-Ar fault gouge dates from the Norwegian North Sea rift shoulder 

      Fossen, Haakon; Ksienzyk, Anna K.; Rotevatn, Atle; Bauck, Marit Stokke; Wemmer, Klaus (Journal article; Peer reviewed, 2021)
      Although seismic and stratigraphic well information put tight constraints on rift basin evolution, eroded rift shoulders commonly expose polydeformed prerift basement whose deformation history may be difficult to constrain. ...
    • Impact of normal faulting and pre-rift salt tectonics on the structural style of salt-influenced rifts: the Late Jurassic Norwegian Central Graben, North Sea 

      Ge, Zhiyuan; Gawthorpe, Rob; Rotevatn, Atle; Thomas, Michel Bøgh (Peer reviewed; Journal article, 2017-10)
      Studies of salt‐influenced rift basins have focused on individual or basin‐scale fault system and/or salt‐related structure. In contrast, the large‐scale rift structure, namely rift segments and rift accommodation zones ...
    • The influence of structural inheritance and multiphase extension on rift development, the northern North Sea 

      Phillips, Thomas B.; Fazlikhani, Hamed; Gawthorpe, Rob; Fossen, Haakon; Jackson, Christopher Aiden Lee; Bell, Rebecca E.; Faleide, Jan Inge; Rotevatn, Atle (Peer reviewed; Journal article, 2019-11-08)
      The northern North Sea rift evolved through multiple rift phases within a highly heterogeneous crystalline basement. The geometry and evolution of syn‐rift depocenters during this multiphase evolution and the mechanisms ...
    • Influence of Zones of Pre-Existing Crustal Weakness on Strain Localization and Partitioning During Rifting: Insights From Analog Modeling Using High-Resolution 3D Digital Image Correlation 

      Osagiede, Edoseghe E.; Rosenau, Matthias; Rotevatn, Atle; Gawthorpe, Rob; Jackson, Christopher A-L; Rudolf, Michael (Journal article; Peer reviewed, 2021)
      Pre-existing crustal structures are known to influence rifting, but the factors controlling their influence remain poorly understood. We present results of digital image correlation that allows for the surface strain ...
    • Microstructure and fluid flow in the vicinity of basin bounding faults in rifts – The Dombjerg Fault, NE Greenland rift system 

      Salomon, Eric; Rotevatn, Atle; Kristensen, Thomas Berg; Grundvåg, Sten-Andreas; Henstra, Gijs Allard (Journal article; Peer reviewed, 2021)
      Faults commonly form loci for high fluid flux in sedimentary basins, where fluids, rocks and deformation processes frequently interact. Here, we elucidate the interaction of fluid flow, diagenesis and deformation near ...
    • Minibasin depocentre migration during diachronous salt welding, offshore Angola 

      Ge, Zhiyuan; Gawthorpe, Rob; Rotevatn, Atle; Zijerveld, Leo; Jackson, Christopher; Oluboyo, Ayodeji P. (Peer reviewed; Journal article, 2019)
      Salt tectonics is an important part of the geological evolution of many continental margins, yet the four‐dimensional evolution of the minibasins, the fundamental building block of these and many other salt basins, remains ...
    • Nature of Palaeozoic extension in Lofoten, north Norwegian Continental Shelf: insights from 3-D seismic analysis of a Cordilleran-style metamorphic core complex 

      Henstra, Gijs; Rotevatn, Atle (Peer reviewed; Journal article, 2014-06)
      Analyses of 3-D seismic data reveal that pre-Triassic basins are present underneath the Mesozoic North Træna Basin (Lofoten Margin, Norway). These are linked to a Cordilleran-style metamorphic core complex that developed ...
    • Normal Fault Kinematics and the Role of Lateral Tip Retreat: An Example From Offshore NW Australia 

      Lathrop, Bailey A.; Jackson, Christopher A.-L.; Bell, Rebecca E.; Rotevatn, Atle (Journal article; Peer reviewed, 2021)
      Understanding how normal faults grow is key to determining the tectono-stratigraphic evolution of rifts. According to recent studies, normal faults tend to grow in two temporally distinct stages: a lengthening stage, ...
    • Pre-existing intra-basement shear zones on the development of non-colinear rift fault network, Utsira High – Heimdal Terrace, North Sea 

      Osagiede, Edoseghe Edwin; Rotevatn, Atle; Gawthorpe, Rob; Kristensen, Thomas Berg; Jackson, Christopher; Marsh, Nicola (Peer reviewed; Journal article, 2020)
      Pre-existing intra-basement shear zones can induce mechanical and rheological heterogeneities that may influence rifting and the overall geometry of rift-related normal faults. However, the extent to which physical and ...
    • Quantifying structural controls on fluid flow: Insights from carbonate-hosted fault damage zones on the Maltese Islands 

      Dimmen, Vilde; Rotevatn, Atle; Peacock, David; Nixon, Casey William; Nærland, Kari (Peer reviewed; Journal article, 2017-08)
      Structural complexity along faults (e.g., relay zones, fault intersections and jogs) exert strong controls on fluid flow, yet few attempts have been made to quantify and visualise such relationships. This paper does that ...
    • The relationship between fluid flow, structures, and depositional architecture in sedimentary rocks: An example-based overview 

      Dimmen, Vilde; Rotevatn, Atle; Nixon, Casey William (Journal article; Peer reviewed, 2020)
      Fluid flow in the subsurface is fundamental in a variety of geological processes including volcanism, metamorphism, and mineral dissolution and precipitation. It is also of economic and societal significance given its ...
    • The role of structural inheritance in the development of high-displacement crustal faults in the necking domain of rifted margins: The Klakk Fault Complex, Frøya High, offshore mid-Norway 

      Munoz Barrera, Jhon Meyer; Rotevatn, Atle; Gawthorpe, Rob; Henstra, Gijs Allard; Kristensen, Thomas Berg (Journal article; Peer reviewed, 2020-08-20)
      The role of inherited structures during the development of normal faults in continental rifts and proximal domains of passive margins have been extensively studied. Few studies, however, have a focus on deciphering the ...
    • Sequential growth of deformation bands in carbonate grainstones in the hangingwall of an active growth fault: Implications for deformation mechanisms in different tectonic regimes 

      Rotevatn, Atle; Thorsheim, Elin; Bastesen, Eivind; Fossmark, Heidi Synnøve Solli; Torabi, Anita; Sælen, Gunnar (Peer reviewed; Journal article, 2016-09)
      Deformation bands in porous sandstones have been extensively studied for four decades, whereas comparatively less is known about deformation bands in porous carbonate rocks, particularly in extensional settings. Here, we ...
    • Strain migration during multiphase extension, Stord Basin, northern North Sea rift 

      Fazlikhani, Hamed; Aagotnes, Synne; Refvem, Marte; Hamilton-Wright, James; Bell, Rebecca E.; Fossen, Haakon; Gawthorpe, Rob; Jackson, Christopher A.-L.; Rotevatn, Atle (Journal article; Peer reviewed, 2021)
      In regions experiencing multiple phases of extension, rift‐related strain can vary along and across the basin during and between each phase, and the location of maximum extension can differ between the rift phase. Despite ...
    • Structural evolution of sheared margin basins: the role of strain partitioning. Sørvestsnaget Basin, Norwegian Barents Sea 

      Kristensen, Thomas Berg; Rotevatn, Atle; Marvik, Maria; Henstra, Gijs Allard; Gawthorpe, Robert; Ravnås, Rodmar (Peer reviewed; Journal article, 2017)
      Spatio-temporal analysis of basins formed along sheared margins has received much less attention than those formed along orthogonally extended margins. Knowledge about the structural evolution of such basins is important ...

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