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Now showing items 1-33 of 33
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Our analysis of a comprehensive well log database and complementary mineralogical and geochemical information indicates that the risk for Upper Jurassic shales on the Norwegian Continental Shelf (NCS) to permit severe ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
The Mjølnir structure, SW Barents Sea, is one of the best-preserved marine impact craters on Earth. After impact on the paleo-seafloor about 142 Ma ago, this crater experienced an atypical deformation of its central peak, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Extensional systems evolve through different stages due to changes in the rheological state of the lithosphere. It is crucial to distinguish ductile structures formed before and during rifting, as both cases have important ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
This study focuses on the tectonic evolution of the greater Egersund Basin in the Norwegian central North Sea, with special emphasis on Late Paleozoic extensional tectonics following Caledonian collapse and the Variscan ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Two nested clinoform set types of different scales and steepness are mapped and analysed from high‐resolution seismic data. Restoration of post‐depositional faulting reveals a persistent pattern of small‐scale, high‐angle ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
High quality reprocessed seismic reflection profiles and available wells were used to study the little studied southeastern Norwegian Barents Sea and east Finnmark Platform. The study area comprises prominent structural ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The Triassic-Jurassic transition marks an important change in the basin configuration of the Greater Barents Sea. A contiguous basin with km-thick sedimentary successions changed into a partitioned basin with uplift in the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The evolution of the Olga Basin region in the northern Norwegian Barents Sea and its relation to the Caledonian and Timanian orogenies is poorly understood due to sparse geophysical data and the lack of well control. In ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
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 ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The northeast Atlantic encompasses archetypal examples of volcanic rifted margins. Twenty-five years after the last ODP (Ocean Drilling Program) leg on these volcanic margins, the reasons for excess melting are still ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Regional Early Cretaceous uplift of the northern Barents Sea associated with the High Arctic Large Igneous Province (HALIP) caused the development of the fluvial to open-marine depositional system, terminating in the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The North Sea area has been subjected to significant erosion and subsequent deposition of sediments in the basin margin and deeper basin areas, respectively, during the late Neogene. A large amount of Cretaceous-early ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
Fault systems in extensional basins commonly display geometries that vary with depth, reflecting depth- and lithology-dependent mechanical strength. Using an experimental approach, we investigate this relationship by ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
When continents rift, magmatism can produce large volumes of melt that migrate upwards from deep below the Earth’s surface. To understand how magmatism impacts rifting, it is critical to understand how much melt is generated ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The SW Barents Sea margin experienced a pulse of extensional deformation in the Middle–Late Devonian through the Carboniferous, after the Caledonian Orogeny terminated. These events marked the initial stages of formation ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We present a crustal-scale seismic profile in the Barents Sea based on new data. Wide-angle seismic data were recorded along a 600 km long profile at 38 ocean bottom seismometer and 52 onshore station locations. The modelling ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
Deep and complex geodynamic processes, including the effects of plumes, heat, plate tectonics, and local tectonics control the Earth’s surface. In the Arctic these deep processes are masked by extensive glaciations and ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
The SW Barents Sea is an epicontinental platform consisting of N- to NNE-oriented basins separated by basement highs. The basins were formed during four distinct rift-phases in the Carboniferous, Late Permian, Late ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
Seismic petro‐facies characterization in low net‐to‐gross reservoirs with poor reservoir properties such as the Snadd Formation in the Goliat field requires a multidisciplinary approach. This is especially important when ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
Mud-rich prograding sediment lobes make for most of the Barremian – Albian stratigraphic record in the SW Barents Sea. Submarine canyons and channels potentially represent key components of sediment transport from shelf ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
Combined (U-Th)/He and U-Pb detrital zircon geochronological data are reported from Ordovician to Devonian strata of the Severnaya Zemlya archipelago to address the paleogeography of the Kara Terrane in the Russian High ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Seismic reflection data along volcanic passive margins frequently provide imaging of strong and laterally continuous reflections in the middle and lower crust. We have completed a detailed 2‐D seismic interpretation of the ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
The Fingerdjupet Subbasin in the southwestern Barents Sea sits in a key tectonic location between deep rifts in the west and more stable platform areas in the east. Its evolution is characterized by extensional reactivation ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
The Early Eocene continental breakup was magma-rich and formed part of the North Atlantic Igneous Province. Extrusive and intrusive magmatism was abundant on the continental side, and a thick oceanic crust was produced up ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
We perform an integrated analysis of magnetic anomalies, multichannel seismic and wide-angle seismic data across an Early Cretaceous continental large igneous province in the northern Barents Sea region. Our data show that ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
The continuation of the Caledonides into the Barents Sea has long been a subject of discussion, and two major orientations of the Caledonian deformation fronts have been suggested: NNW-SSE striking and NE-SW striking. A ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
Tectonic inversion of rift basins is most commonly reported in the literature to occur after rifting has ceased. In contrast, we present evidence for synrift, localized tectonic inversion from the Loppa High area, southwestern ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
The Loppa High area has been subject to several events of uplift and subsidence from the Late Paleozoic to Present. The driving mechanisms behind the vertical movements, however, are not fully understood. We propose that ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The northern North Sea rift basin developed on a heterogeneous crust comprising structures inherited from the Caledonian orogeny and Devonian postorogenic extension. Integrating two‐dimensional regional seismic reflection ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
In this study we assess the present-day gas hydrate stability zone for the Barents Sea and Kara Sea region. Thereby, we make use of a data-based 3D lithosphere-scale pressure and thermal model. The resulting gas hydrate ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
While many structural elements on the northwestern Barents Shelf initiated early and have remained influential on accommodation and sedimentation, detailed seismic interpretation attests to the development of new structural ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
Pore pressure in fine-grained rocks is important with respect to drilling problems such as kicks, blowouts, borehole instability, stuck pipe and lost circulation. In this study, a succession of overpressured, fine-grained, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
Regional assessment studies for CO2 storage plays have been carried out in the Norwegian-Danish Basin of the Central North Sea and in the Skagerrak-Kattegat area. The development of the reservoir models is a part of an ...