Blar i Bergen Open Research Archive på forfatter "Rotevatn, Atle"
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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 ... -
Displacement/Length Scaling Relationships for Normal Faults; a Review, Critique, and Revised Compilation
Lathrop, B.A.; Jackson, C.A.L.; Bell, R.E.; Rotevatn, Atle (Journal article; Peer reviewed, 2022)The relationship between normal fault displacement (D) and length (L) varies due to numerous factors, including fault size, maturity, basin tectonic history, and host rock lithology. Understanding how fault D and L relate ... -
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 ... -
Engineering Meter-scale Porous Media Flow Experiments for Quantitative Studies of Geological Carbon Sequestration
Eikehaug, Kristoffer; Haugen, Malin Quande; Folkvord, Olav Parelius; Benali, Benyamine; Bang Larsen, Emil; Tinkova, Alina Valerieva; Rotevatn, Atle; Nordbotten, Jan Martin; Fernø, Martin (Journal article; Peer reviewed, 2024)This technical note describes the FluidFlower concept, a new laboratory infrastructure for geological carbon storage research. The highly controlled and adjustable system produces a strikingly visual physical ground truth ... -
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, ... -
The evolution of catchment-depositional system relationships on the dip slopes of intra-rift basement highs: an example from the Frøya High, Mid-Norwegian Rifted Margin
Henstra, Gijs Allard; Cullen, Tim; Gawthorpe, Robert Leslie; Munoz Barrera, Jhon Meyer; Muravchik, Martin; Rotevatn, Atle (Journal article; Peer reviewed, 2023)Basement highs form one of many potential sediment source areas during the evolution of continental rifts and rifted margins and add to the topographic complexity typical of active rifts. Footwall basement highs acting as ... -
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. ... -
Imaging along-strike variability in fault structure; insights from seismic modelling of the Maghlaq Fault, Malta
Dimmen, Vilde; Rotevatn, Atle; Prestegård, Mari; Lecomte, Isabelle Christine; Andersen, Ingvild Gabrielsen (Journal article; Peer reviewed, 2024)Seismic modelling studies of outcrop analogues have proven a powerful method to provide a link between geology as observed at outcrop, and the interpretation of subsurface geology from seismic data. Seismic imaging of fault ... -
Imaging of small-scale faults in seismic reflection data: Insights from seismic modelling of faults in outcrop
Dimmen, Vilde; Rotevatn, Atle; Lecomte, Isabelle Christine (Journal article; Peer reviewed, 2023)Faults with throws that fall below vertical seismic resolution are challenging to identify in reflection seismic datasets. Nevertheless, such small-scale faults may still affect the seismic images, and in this study, we ... -
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 ...