Blar i Department of Earth Science på tittel
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Identifying flood deposits in lake sediments: Changing frequencies and potential links to long-term climate change
(Doctoral thesis, 2011-05-26)This thesis consists of an introduction and three individual papers that investigate the possibility for identifying the sedimentary imprint of catchment processes in lake sediments, emphasising on extreme events and in ... -
Imaging Discontinuities in the Lithospheric Mantle Using a New, Automated Ps and Sp Receiver Function Workflow
(Master thesis, 2020-12-10)Over the last decades, the receiver function technique has been widely established as a standard tool for surveying sharp changes in elastic properties of the Earth’s crust and upper mantle. To date, very few studies have ... -
Imaging of small-scale faults in seismic reflection data: Insights from seismic modelling of faults in outcrop
(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 ... -
Imaging Subduction Beneath Mount St. Helens: Implications for Slab Dehydration and Magma Transport
(Peer reviewed; Journal article, 2019)Mount St. Helens (MSH) is anomalously 35–50 km trenchward of the main Cascade arc. To elucidate the source of this anomalous forearc volcanism, the teleseismic‐scattered wavefield is used to image beneath MSH with a dense ... -
Impact of diagenesis on seismic properties of siliciclastic rocks
(Doctoral thesis, 2006-04-25) -
Impact of Fjord Geometry on Grounding Line Stability
(Peer reviewed; Journal article, 2018-06-05)Recent and past retreat of marine-terminating glaciers are broadly consistent with observed ocean warming, yet responses vary significantly within regions experiencing similar ocean conditions. We assess how fjord geometry ... -
Impact of geological heterogeneity on CO2 sequestration: from outcrop to simulator
(Doctoral thesis, 2013-12-16)Increased anthropogenic emission of carbon dioxide (CO2) into the Earth’s atmosphere since the industrial revolution has enhanced the greenhouse effect and contributed to global climate change. Controlling atmospheric CO2 ... -
Impact of icebergs on the seasonal submarine melt of Sermeq Kujalleq
(Journal article; Peer reviewed, 2023)The role of icebergs in narrow fjords hosting marine-terminating glaciers in Greenland is poorly understood, even though iceberg melt results in a substantial freshwater flux that can exceed the subglacial discharge. ... -
Impact of Inherited Foreland Relief on Retro-Foreland Basin Architecture
(Journal article; Peer reviewed, 2023)We use a Landscape Evolution Model including flexural isostasy to investigate the influence of inherited foreland relief on the stratigraphic evolution of the retro-foreland domain during mountain building. We show models ... -
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
(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 Impact of Pre‐Salt Rift Topography on Salt Tectonics: A Discrete‐Element Modeling Approach
(Peer reviewed; Journal article, 2019)Gravity‐driven salt tectonics along passive margins is commonly depicted as comprising domains of updip extension and downdip contraction linked by an intermediate, broadly undeformed zone of translation. This study expands ... -
Impact of runoff temporal distribution on ice dynamics
(Journal article; Peer reviewed, 2022)Record highs of meltwater production at the surface of the Greenland ice sheet have been recorded with a high recurrence over the last decades. Those melt seasons with longer durations, larger intensities, or with both ... -
Impact of seasonal fluctuations of ice velocity on decadal trends observed in Southwest Greenland
(Journal article; Peer reviewed, 2023)By tracking the feature displacement between satellite images spaced approximately one year apart, surface runoff has been shown to have a long-term impact on the average ice flow of a land-terminating sector of Greenland. ... -
Impacts of seismic resolution on fault interpretation: Insights from seismic modelling
(Journal article; Peer reviewed, 2021)Seismic mapping of subsurface faults is hampered by factors such as seismic resolution, velocity control for depth conversion and human bias. Here, we explore the challenges and pitfalls related to interpreting normal ... -
Impacts of small-scale faults on continental to coastal plain deposition: Evidence from the Realgrunnen Subgroup in the Goliat field, southwest Barents Sea, Norway
(Peer reviewed; Journal article, 2018-08)In this study we synthesise sedimentological, fault, and Amplitude Versus Angle (AVA) analysis and propose that the Fruholmen and Tubåen formations (Realgrunnen Subgroup) are syn-kinematic deposits that record a previously ... -
Implications of 3D Seismic Raytracing on Focal Mechanism Determination
(Journal article; Peer reviewed, 2019)The purpose of this study is to investigate apparent first‐motion polarities mismatch at teleseismic distances in the determination of focal mechanism. We implement and compare four seismic raytracing algorithms to compute ... -
Improved quantitative calibration of rock physics models
(Peer reviewed; Journal article, 2011-11)In reservoir characterization, rock-physics models provide the link between seismic observables (density, compressional and shear wavespeeds) and reservoir parameters such as porosity, lithology and fluid saturation. ... -
Improved seismic monitoring with OBS deployment in the Arctic: A pilot study from offshore western Svalbard
(Journal article; Peer reviewed, 2021)The mid‐ocean ridge system is the main source of earthquakes within the Arctic region. The earthquakes are recorded on the permanent land‐based stations in the region, although, smaller earthquakes remain undetected. In ... -
Impulsive overflatekilder for seismisk prospektering
(Master thesis, 2003) -
Inception of the Northern European Ice Sheet due to contrasting ocean and insolation forcing
(Peer reviewed; Journal article, 2007-01)About 115,000 years ago the last interglacial reached its terminus and nucleation of new ice sheet growth was initiated. Evidence from the northernmost Nordic Seas indicate that the inception of the last glacial was related ...