Department of Earth Science
Recent Submissions
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Lithological controls on architecture and development of igneous intrusions in sedimentary basins.
(Doctoral thesis, 2023-11-24)Magmatransport i jordskorpen forekommer igjennom magmatiske intrusjoner (siller og diker), som ofte omtales som et magmatisk rørsystem. Disse nettverkene av magma finnes i de fleste sedimentære bassenger over hele verden, ... -
Paleoceanographic reconstructions across the Plio-Pleistocene from clumped isotope thermometry
(Doctoral thesis, 2023-12-06)Bruk av isotopklyngetermometri (Δ47) på foraminiferer er en relativt ny tilnærming for å estimere havtemperaturer tilbake i tid. I motsetning til mange andre paleotermometre gir denne metoden temperaturer som er upåvirket ... -
An integrated geological characterization of marine ground conditions in the North Sea
(Doctoral thesis, 2023-11-30)Geologiske karakterisering av marine grunnforhold for ankre og fundamenter for vindturbinder store vindkraftverk til havs er et relativt nytt felt. Som sådan er etableringen av beste praksis for integrering av geologiske, ... -
The overturning circulation in a changing Arctic
(Doctoral thesis, 2023-11-22)Ved å begrense varmeutvekslingen mellom hav og atmosfære bestemmer sjøisen området for dannelse av dypvann i Arktis. Under økte klimagassutslipp trekker sjøisen seg nordover. Mens nyere studier tyder på at Arktis kan være ... -
Scattering approaches to modelling and inversion of acoustic and elastic waveform data
(Doctoral thesis, 2023-11-16)Spredningsmetoden er kraftig for å løse direkte og inverse spredningsproblemer i forskjellige bølgespredningsscenarioer. Full bølgeforminversjon, sett på som et ikke-lineært invers spredningsproblem, fremstår som en sentral ... -
Glacier thinning, recession and advance, and the associated evolution of a glacial lake between 1966 and 2021 at Austerdalsbreen, western Norway
(Journal article; Peer reviewed, 2023)The Jostedalsbreen is the largest ice cap in Norway and mainland Europe. Rapid retreat of many of its outlet glaciers since the 2000s has led to the formation of several glacial lakes. Processes causing the formation and ... -
Future state of Norwegian glaciers: Estimating glacier mass balance and equilibrium line responses to projected 21st century climate change
(Journal article; Peer reviewed, 2023)Glaciers and ice caps in Norway are presently undergoing mass loss, areal reduction, and frontal retreat, mainly a result of increased summer ablation due to rising summer temperatures over Scandinavia, especially after ... -
Multi-proxy speleothem-based reconstruction of mid-MIS 3 climate in South Africa
(Journal article; Peer reviewed, 2023)The southern coast of South Africa displays a highly dynamical climate as it is at the convergence of the Atlantic and Indian oceans, and it is located near the subtropical/temperate zone boundary with seasonal influence ... -
3D reservoir characterization of paleokarst reservoirs on Loppa High through seismic modelling
(Master thesis, 2023-09-04) -
Case study of combined marine- and land-based passive seismic surveying in front of Nordenskiöldbreen outlet glacier, Adolfbukta, Svalbard
(Journal article; Peer reviewed, 2023)Glaciers generate seismic waves due to calving and fracturing, meaning that recording and following event classification can be used to monitor glacier dynamics. Our aim with this study is to analyse seismic data acquired ... -
Effects of near-surface thawing on elastic properties and signatures of seismic surface waves
(Master thesis, 2023-09-04)The ongoing temperature rise in the Arctic may have severe effects on large areas of today’s permanently frozen ground. Therefore, it is important to establish robust systems that can monitor permafrost changes with time. ... -
Seafloor earthquake ruptures and mass wasting from the 2004 Mw 6.3 Les Saintes submarine earthquake
(Journal article; Peer reviewed, 2023)The seismic hazard posed by submarine faults and the capacity of submarine earthquakes to trigger mass wasting are poorly understood because we lack detailed characterizations of coseismic ruptures at the seafloor. Here, ... -
How post-salt sediment flux and progradation rate influence salt tectonics on rifted margins: Insights from geodynamic modelling
(Journal article; Peer reviewed, 2023)Continental rifted margins can be associated with widespread and thick salt deposits, which are often formed during the final stages of rifting, prior to breakup. These salt-bearing margins are typically characterized by ... -
Provenance and transport of supraglacial debris revealed by variations in debris geochemistry on Khumbu Glacier, Nepal Himalaya
(Journal article; Peer reviewed, 2023)The origin of supraglacial debris covers is often conceptualised as the formation of a surface lag by melt-out of englacial debris from slow-moving ice, where complexity arises from feedback between debris thickness and ... -
Buoyancy forcing: A key driver of northern North Atlantic sea surface temperature variability across multiple timescales
(Journal article; Peer reviewed, 2023)Analyses of observational data (from year 1870 AD) show that sea surface temperature (SST) anomalies along the pathway of Atlantic Water transport in the North Atlantic, the Norwegian Sea and the Iceland Sea are spatially ... -
Quantitative seismic interpretation in thin-bedded geology using full-wavefield elastic modelling
(Doctoral thesis, 2023-09-28)Refleksjonsseismikk brukes til å lage seismiske «bilder» av den øverste delen av jordskorpen, blant annet med tanke på leting etter reservoarer for olje, gass, karbonlagring og geotermisk energi. I tillegg til å gi grunnlag ... -
Behaviourally modern humans in coastal southern Africa experienced an increasingly continental climate during the transition from Marine Isotope Stage 5 to 4
(Journal article; Peer reviewed, 2023-07-25)Unravelling evolution-by-environment interactions on the gut microbiome is particularly relevant considering the unprecedented level of human-driven disruption of the ecological and evolutionary trajectories of species. ... -
Fluid evolution from extension to compression in the Pyrenean Fold Belt and Basque-Cantabrian Basin: A review
(Journal article; Peer reviewed, 2023)We propose a review to discuss the large number of studies dealing with the fluid history in extensional and compressional sedimentary basins that evolved along the Iberian-Eurasian plate boundary during the full ... -
Kan biologikunnskap bidra til økt forståelse av komplekse geologiske systemer?
(Master thesis, 2023-06-08)Jordsystemet i geologi består av fem delsystemer: geosfæren, atmosfæren, hydrosfæren, kryosfæren, og biosfæren. Til tross for dette blir sistnevnte underkommunisert gjennom geofag-undervisning på vgs-nivå. Jordsystemet ... -
Seismicity modulation due to hydrological loading in a stable continental region: A case study from the Jektvik swarm sequence in Northern Norway
(Journal article; Peer reviewed, 2023)Seismic swarms have been observed for more than 40 yr along the coast of Nordland, Northern Norway. However, the detailed spatio-temporal evolution and mechanisms of these swarms have not yet been resolved due to the ...
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