Department of Earth Science: Nye registreringer
Viser treff 1-20 av 1034
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Deglaciation of the highest mountains in Scandinavia at the Younger Dryas–Holocene transition: evidence from surface exposure-age dating of ice-marginal moraines
(Journal article; Peer reviewed, 2023)Surface exposure–age dating was applied to rock surfaces associated with ice-marginal moraines at elevations of ~1520–1780 m a.s.l. on the slopes of Galdhøpiggen and Glittertinden, the two highest mountains in Scandinavia ... -
Listvenite formation at Gråberget, east-central Norway. A natural analogue for geological CO2 sequestration involving sulphide mineralization
(Master thesis, 2023-08-04)The migration of hydrothermal CO2-bearing fluids from sedimentary crustal units into tectonically emplaced ultramafic mantle rocks has for a long time been an important topic in geology, due to its association with the ... -
Interaction of igneous sills and host rocks of the Curtis Formation, Eastern Utah
(Master thesis, 2023-08-10) -
Putative novel hydrogen- and iron-oxidizing sheath-producing Zetaproteobacteria thrive at the Fåvne deep-sea hydrothermal vent field
(Journal article; Peer reviewed, 2023)Iron-oxidizing Zetaproteobacteria are well known to colonize deep-sea hydrothermal vent fields around the world where iron-rich fluids are discharged into oxic seawater. How inter-field and intra-field differences in ... -
Tectono-stratigraphic model for high-displacement crustal normal faults on continental rifts : The Late Jurassic and earliest Cretaceous on and around the Frøya High, Norwegian Sea
(Doctoral thesis, 2024-04-05)Nye seismiske refleksjonsdata og forbedringer i prosessering av seismikk i løpet av de siste to tiårene har forbedret muligheten for å se strukturer i necking- og distaldomenet i riftede marginer. Osmundsen og Peron-Pinvidic ... -
Tectono-Stratigraphic Evolution of Salt-Influenced Normal Fault Systems: An Example From The Coffee-Soil Fault, Danish North Sea
(Journal article; Peer reviewed, 2023)We explore how the relationships between fault activity, salt movement and sediment loading affect the stratal geometry of the hanging wall throughout the evolution of a salt-influenced normal fault system. We examine a ... -
An integrated geological characterization of the Mid-Pleistocene to Holocene geology of the Sørlige Nordsjø II offshore wind site, southern North Sea
(Journal article; Peer reviewed, 2024)Subsurface deposits in recently glaciated marine areas are highly heterogeneous, representing a range of glacial and postglacial environments and processes including glacitectonism, overconsolidation, fluvial and lacustrine ... -
Topological Characterization of a Fault Network Along the Northern North Sea Rift Margin
(Journal article; Peer reviewed, 2023)The factors that control the spatial variation of the topological characteristics of normal fault networks at the rift-scale are poorly understood. Here, we use 3D seismic reflection data from the northern North Sea to ... -
Application of in-situ gamma spectrometry for radiogenic heat production estimation in the Western Himalaya, Kohistan, and Karakoram in northern Pakistan
(Journal article; Peer reviewed, 2023)The Himalaya, Kohistan, and Karakoram ranges comprise Proterozoic to Cenozoic crystalline complexes exposed in northern Pakistan. Numerous hot springs in the area indicate high subsurface temperatures, prompting a need to ... -
Constraining the 3-D Geometry of Fold-Thrust Belts Using Section Balancing vs. 3-D Interpolative Structural and Probabilistic Modeling
(Journal article, 2023)Quantitative uncertainty analysis, 2-D and 3-D modeling of the subsurface, as well as their visualization form the basis for decision making in exploration, nuclear waste storage and seismic hazard assessment. Methods such ... -
Subsurface Faults Permeability study: Utilization of production data in an exploratory phase, Njord field Heltan Terrace Norwegian Continental Shelf (NCS)
(Master thesis, 2024-01-08)Faults in the subsurface can either aid or block fluid movement based on rock permeability. Analytical techniques measure fault seal capacity for hydrocarbon exploration and carbon capture and storage (CCS) planning. Fault ... -
An experimental study of the effect of water and chlorine on plagioclase nucleation and growth in mafic magmas: application to mafic pegmatites
(Journal article; Peer reviewed, 2023)In this study, the effects of H2O and Cl on the grain size and nucleation delay of plagioclase in basaltic magma were investigated using dynamic and equilibrium experiments at 1150 ∘C, 300 MPa, and oxygen fugacity between ... -
Fault sealing and fluid contact control in Gullfaks Sør
(Master thesis, 2023-11-06)In subsurface reservoirs, understanding the fault sealing capacity is important to predict the amount of hydrocarbons present in the reservoirs. Some earlier literature has emphasized using shale gouge ratio (SGR) to predict ... -
Interpretation of 3D Ground Penetrating Radar data in archaeology by applying seismic attributes
(Master thesis, 2023-11-20)Ground Penetrating Radar (GPR) has emerged as a widely employed geophysical method in archaeological studies, with recent advancements leading to large-scale, high-resolution surveys. The processing techniques applied to ... -
Architecture and Sedimentology of Late Weichselian Delta Deposit in Vie, Førde Norway
(Master thesis, 2023-12-04)An early Holocene glacier front deposit of a lower outwash fan and an upper delta, at Vie sandpit next to the town of Førde in Sunnfjord municipality in western Norway has been investigated using various fields methods, ... -
Temperature variation in caves and its significance for subterranean ecosystems
(Journal article; Peer reviewed, 2023)Climate change affects all ecosystems, but subterranean ecosystems are repeatedly neglected from political and public agendas. Cave habitats are home to unknown and endangered species, with low trait variability and intrinsic ... -
Configuration of the Scandinavian Ice Sheet in southwestern Norway during the Younger Dryas
(Journal article; Peer reviewed, 2023)The extent of the Scandinavian Ice Sheet in southwestern Norway is precisely located during the well-characterized Younger Dryas re-advance. However, the thickness of the ice sheet is less well constrained inland from the ... -
Atlantic inflow and low sea-ice cover in the Nordic Seas promoted Fennoscandian Ice Sheet growth during the Last Glacial Maximum
(Journal article; Peer reviewed, 2023)The Atlantic water inflow into the Nordic Seas has proven difficult to reconstruct for the Last Glacial Maximum. At that time, the Fennoscandian Ice Sheet grew potentially to its maximum extent. Sea-ice free conditions in ... -
A matrix-free variant of the distorted Born iterative method for seismic full-waveform inversion
(Journal article; Peer reviewed, 2023)The distorted Born iterative method reduces a nonlinear inverse scattering problem to a sequence of (ill-posed) linear inverse scattering problems that can be solved using a regularized least-squares formulation. This ...