Blar i Department of Earth Science på tittel
Viser treff 748-767 av 1154
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Pliocene sea ice evolution in the Iceland and Labrador Sea – A biomarker approach
(Doctoral thesis, 2017-12-07)Sea ice plays a crucial role in the climate system. Although this is broadly acknowledged, the role of sea ice is not fully understood, especially during warmer periods such as the Pliocene (5.88–2.58 Million years ... -
Plume–MOR decoupling and the timing of India–Eurasia collision
(Journal article; Peer reviewed, 2022)The debatable timing of India–Eurasia collision is based on geologic, stratigraphic, kinematic, and tectonic evidence. However, the collision event disturbed persistent processes, and the timing of disturbance in such ... -
The PMIP4 contribution to CMIP6 – Part 4: Scientific objectives and experimental design of the PMIP4-CMIP6 Last Glacial Maximum experiments and PMIP4 sensitivity experiments
(Peer reviewed; Journal article, 2017)The Last Glacial Maximum (LGM, 21 000 years ago) is one of the suite of paleoclimate simulations included in the current phase of the Coupled Model Intercomparison Project (CMIP6). It is an interval when insolation was ... -
Pockmarks i indre Aurlandsfjorden: Aktive eller inaktive lekkasjestrukturer Dannelse, alder og biogeokjemiske prosesser
(Master thesis, 2022-03-07)Ved bruk av høyoppløselige batymetris data er det i indre Aurlandsfjorden, Vest-Norge, kartlagt et område på c. 1.2 km2, på vanndyp mellom 40-72 m.u.h. hvor det er identifisert minst 18 pockmark strukturer. De har en ... -
Point-spread function convolution to simulate prestack depth migrated images: A validation study
(Journal article; Peer reviewed, 2021)Seismic migration commonly yields an incomplete reconstruction of the Earth model due to restricted survey aperture, band-limited frequency content and propagation effects. This affects both illumination and resolution of ... -
Polygonal faults in the northern North Sea
(Master thesis, 2021-06-01)Polygonal faults have been studied in sedimentary basins at the Norwegian continental shelf and globally as non-tectonic normal faults. The polygonal faults have been recognized for a long time, but no one has described ... -
Polygonalforkastninger - karakteristikk og dannelsesmekanismer. En studie basert på tolking av seismiske data fra Norske-Barentshavsmarginen
(Master thesis, 2014-09-22)Polygonale forkastningssystemer (PFS) er bemerkelsesverdige strukturer som er identifisert i en rekke sedimentære bassenger over hele verden. Polygonalforkastninger er normalforkastninger med små sprang som hovedsakelig ... -
Possible Seismic Effects of Geochemical Processes of Injection of Carbon Dioxide in Carbonate Reservoirs.
(Master thesis, 2017-06-27)The seismic effect of geochemical reactions caused by rock-fluid interactions have been investigated throughout this thesis. Seismic attributes can provide valuable information about rock properties. As a result, rock ... -
The post-Caledonian history of the Røldal Shear Zone (SW Norway): an apatite fission track study
(Master thesis, 2015-04-27)The post-Caledonian tectonic history and landscape evolution of southwestern Norway is not very well understood and therefore the subject of an ongoing debate. The lack of onshore post-Devonian sediments makes the study ... -
The post-Caledonian tectono-thermal evolution of Western Norway
(Doctoral thesis, 2023-06-19)En riftet kontinentalmargin viser ofte et karakteristisk landskap som domineres av høye og flate fjell som er separert fra en lavtliggende kyststripe av en tydelig skrent. Mye av vår nåværende forståelse av disse områdene ... -
Post-Caledonian topographic and structural evolution of the Nordfjord region in Western Norway – Insights from Apatite Fission Track thermochronology and structural mapping
(Master thesis, 2023-02-06)The topographic and tectonic post-Caledonian evolution of western Norway is still not fully understood. Improving resolution in the low-temperature thermochronological database, this study focuses on a constrained area ... -
Postglacial mass movements and depositional environments in a high-latitude fjord system – Hardangerfjorden, Western Norway
(Peer reviewed; Journal article, 2016-09)High resolution acoustic data and a 15.7 m long sediment core from the Hardangerfjorden system, western Norway, have been analyzed to increase our knowledge on depositional environments, submarine mass movement trigger ... -
Postglacial species arrival and diversity buildup of northern ecosystems took millennia
(Journal article; Peer reviewed, 2022)What drives ecosystem buildup, diversity, and stability? We assess species arrival and ecosystem changes across 16 millennia by combining regional-scale plant sedimentary ancient DNA from Fennoscandia with near-complete ... -
Postglasial forvitring, glasial erosjon og tektonikk som landskapsutviklende agenser i Lyse, Rogaland
(Master thesis, 2019-06-13)Lysefjordområdet, hovedsakelig bestående av granitt, antas å ha vært dekket av is gjentatte ganger i kvartær. Området har lavt relieff og ligger over havnivå, og fjellplatåer er separert av dype glasiale søkk og fjorder. ... -
Postglasiale sedimentære prosesser og avsetningsmiljø i Skagerrak
(Master thesis, 2015-11-30)Målet med denne studien har vært å kartlegge og studere avsetninger i Skagerrak og sørøstlige deler av Norskerenna for å gi et innblikk i den postglasiale utviklingen mot et moderne sedimentasjonsmønster. I tillegg er ... -
Potential and limitation of 230Th-excess as a chronostratigraphic tool for late Quaternary Arctic Ocean sediment studies: An example from the Southern Lomonosov Ridge
(Journal article; Peer reviewed, 2022)Recently, the use of “extinction ages” of excesses in U-series isotopes (230Thxs, 231Paxs) has been proposed for the setting of benchmark ages of up to ~350 and ~150 ka, respectively, in late Quaternary marine records from ... -
The potential of sedimentary ancient DNA for reconstructingpast sea ice evolution
(Peer reviewed; Journal article, 2019-06-24)Sea ice is a crucial component of the Arctic climate system, yet the tools to document the evolution of sea ice conditions onhistorical and geological time scales are few and have limitations. Such records are essential ... -
Potential secondary events caused by early Holocene paleoearthquakes in Fennoscandia – a climate-related review
(Journal article; Peer reviewed, 2021)During the last deglaciation of Fennoscandia, large earthquakes may have induced secondary effects on the high-latitude coastal regions and continental margins primarily from surface rock avalanches, large and small submarine ... -
Potential Seismogenic Faults in Norway
(Master thesis, 2019-06-26)Identification of seismogenic potential of faults in an area is crucial in the assessment of earthquake hazard. One of the most challenging tasks in seismotectonic analysis that leads to the identification of the seismogenic ... -
Potential Use of Time-Lapse Surface Seismics for Monitoring Thawing of the Terrestrial Arctic
(Journal article; Peer reviewed, 2020)The terrestrial Arctic is warming rapidly, causing changes in the degree of freezing of the upper sediments, which the mechanical properties of unconsolidated sediments strongly depend upon. This study investigates the ...