Browsing Department of Earth Science by Title
Now showing items 1-20 of 717
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A 1.3-Myr palaeoceanographic record from the continental margin off Dronning Maud Land, Antarctica
(Peer reviewed; Journal article, 2003-09-15)A 12.5 m long core was retrieved from the continental margin off Dronning Maud Land, Antarctica. Magnetostratigraphy, stable isotopes, 14C accelerator mass spectrometer and amino acid analyses indicate a continuous sediment ... -
3-D seismic images of an extensive igneous sill in the lower crust
(Peer reviewed; Journal article, 2019-05-31)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 ... -
The 30 June 2017 North Sea Earthquake: Location, Characteristics, and Context
(Journal article; Peer reviewed, 2020)The Mw 4.5 southern Viking graben earthquake on 30 June 2017 was one of the largest seismic events in the Norwegian part of the North Sea during the last century. It was well recorded on surrounding broadband seismic ... -
3D seismic architecture of Pleistocene submarine channels and lobe complexes in the thin-skin deformed slope of the Levantine Basin
(Master thesis, 2013-06-03)The current study describes the architecture of Pleistocene-Holocene depositional features that is affected by the underlying structurally topography. The study area is located offshore Israel, at the Levantine Basin of ... -
3D seismic geomorphology of submarine channel-levee systems in salt-related slope setting: a case study from the western deepwater Egypt
(Master thesis, 2013-07-02)High resolution 3D seismic dataset has been used to examine gravity-driven deposits from the Plesitocene to present-day in the structurally complex area of the western Nile deepwater. The underlying Messinian salt and its ... -
3D seismic stratigraphy and reservoir characterization of the Chalk Group in the Norwegian Central Graben, North Sea
(Doctoral thesis, 2011-12-08) -
3D stochastic modelling of fault zones in siliciclastic reservoirs. Implications for reservoir description and fluid flow modelling
(Doctoral thesis, 2014-12-16)Fault zones in siliciclastic rocks form distinct volumetric entities and typically exhibit great structural complexity. While it has been considered that the main impact of fault zones to fluid flow is to baffle or block ... -
3D structure and formation of hydrothermal vent complexes at the paleocene-eocene transition, the Møre basin, MID-Norwegian margin
(Peer reviewed; Journal article, 2017-08)The mid-Norwegian margin is regarded as an example of a volcanic-rifted margin, formed prior to and during, Paleogene breakup of the northeast Atlantic. The area is characterized by the presence of voluminous basaltic ... -
4th Nordic Workshop on Cosmogenic Nuclides. Landscape development and geohazards
(Conference object; Peer reviewed, 2018) -
A detailed field and geochemical investigation of the volcanic sequence in the Våganes-area: The Solund-Stavfjord Ophiolite Complex
(Master thesis, 2021-06-01)The Solund-Stavfjord Ophiolite Complex (SSOC) is located within the western Norwegian Caledonides and represents a remnant of the youngest phase of oceanic crust formation, dated to Late Ordovician (443 Ma). Detailed field ... -
Abrupt changes in sea ice and dynamics of Dansgaard-Oeschger events
(Doctoral thesis, 2017-12-01)Changes in sea ice are proposed as an important component in Dansgaard-Oeschger events; the abrupt climate change events that occurred repeatedly during the last ice age. Paleoclimatic reconstructions suggest an expansion ... -
Abrupt high-latitude climate events and decoupled seasonal trends during the Eemian
(Peer reviewed; Journal article, 2018-07-20)The Eemian (the Last Interglacial; ca. 129–116 thousand years ago) presents a testbed for assessing environmental responses and climate feedbacks under warmer-than-present boundary conditions. However, climate syntheses ... -
Accretionary history of Lower Ordovician island arc complexes on Bømlo: evidence from detrital zircon dating and geochemical data
(Master thesis, 2017-06-13)The provenance studies of sedimentary sequences associated with island arc complexes on Bømlo within the ophiolitic terrain of SW Norway has demonstrated that the provenance signature of these sedimentary rocks changed ... -
Acoustic Propagation Underneath the Arctic Sea-ice
(Doctoral thesis, 2018-10-04)The main objective of this project is to study the effect of sea-ice on underwater acoustic wave propagation. Three main parameters define how acoustic waves react to the presence of seaice: (i) the roughness of the underside ... -
Acoustic waveform inversion for ocean turbulence
(Peer reviewed; Journal article, 2017)The seismic oceanography method is based on extracting and stacking the low-frequency acoustic energy scattered by the ocean heterogeneity. However, a good understanding on how this acoustic wavefield is affected by physical ... -
Adjoint Modeling and Observing System Design in the Subpolar North Atlantic
(Doctoral thesis, 2019-08-30)The near-surface ocean currents of the subpolar North Atlantic transport large amounts of heat from the subtropics to higher latitudes, affecting Arctic sea ice extent, the melting of the Greenland Ice Sheet, and the climate ... -
Akustiske bølger i periodiske medier
(Master thesis, 2003) -
Alps to Apennines zircon roller coaster along the Adria microplate margin
(Peer reviewed; Journal article, 2018-02-09)We have traced the particle path of high-pressure metasedimentary rocks on Elba Island, Northern Apennines, with the help of a U-Pb-Hf detrital zircon study. One quarter of the analysed zircons are surprisingly young, ... -
Alps to Apennines zircon roller coaster along the Adria microplate margin
(Peer reviewed; Journal article, 2018-02-09)We have traced the particle path of high-pressure metasedimentary rocks on Elba Island, Northern Apennines, with the help of a U-Pb-Hf detrital zircon study. One quarter of the analysed zircons are surprisingly young, ... -
Ambient noise levels and detection threshold in Norway
(Peer reviewed; Journal article, 2016-07)Ambient seismic noise is caused by a number of sources in specific frequency bands. The quantification of ambient noise makes it possible to evaluate station and network performance. We evaluate noise levels in Norway from ...