Browsing Department of Earth Science by Title
Now showing items 798-817 of 1215
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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 ... -
Pre-existing intra-basement shear zones on the development of non-colinear rift fault network, Utsira High – Heimdal Terrace, North Sea
(Peer reviewed; Journal article, 2020)Pre-existing intra-basement shear zones can induce mechanical and rheological heterogeneities that may influence rifting and the overall geometry of rift-related normal faults. However, the extent to which physical and ... -
Precessional Cyclicity of Seawater Pb Isotopes in the Late Miocene Mediterranean
(Peer reviewed; Journal article, 2019-12)Astronomical tuning in the Mediterranean region is primarily based on organically‐mediated proxies, such as cyclicity of organic rich layers or changes in foraminiferal assemblages. Both during and post deposition, organic ... -
Present day Jakobshavn Isbræ close to the Holocene minimum extent
(Journal article; Peer reviewed, 2020)Marine terminating glaciers evolve on millenial timescales in response to changes in oceanic and atmospheric conditions. However, the relative role of oceanic and atmospheric drivers remains uncertain. The evolution of ... -
Preserved eolian bedforms control reservoir heterogeneity: Characterization and modeling workflow for the Avilé Member, Neuquén Basin, Argentina
(Journal article; Peer reviewed, 2022)Under certain conditions, most commonly abrupt flooding events, entire eolian bedforms can be incorporated into the geological record. Sediment that was essentially ‘in transport’ within these bedforms at the time of ... -
Prestack inversion and multiattribute analysis for porosity, shale volume, and sand probability in the Havert Formation of the Goliat field, southwest Barents Sea
(Peer reviewed; Journal article, 2017-08)An integrated innovative multidisciplinary approach has been used to estimate effective porosity (PHIE), shale volume (Vsh), and sand probability from prestack angle gathers and petrophysical well logs within the Lower ... -
A previously unidentified fault revealed by the February 25, 2022 (Mw 6.1) Pasaman Earthquake, West Sumatra, Indonesia
(Journal article; Peer reviewed, 2023)A destructive earthquake (Mw 6.1) struck Pasaman, West Sumatra, Indonesia, on 25 February 2022, resulting in at least 18 deaths and damage to 1765 buildings. Our relocated foreshock, mainshock, and aftershocks and their ... -
Probabilistic Tsunami Hazard Analysis (PTHA): multiple sources and global applications
(Peer reviewed; Journal article, 2017-12)Applying probabilistic methods to infrequent but devastating natural events is intrinsically challenging. For tsunami analyses, a suite of geophysical assessments should be in principle evaluated because of the different ... -
Probabilistic Tsunami Hazard and Risk Analysis: A Review of Research Gaps
(Journal article; Peer reviewed, 2021)Tsunamis are unpredictable and infrequent but potentially large impact natural disasters. To prepare, mitigate and prevent losses from tsunamis, probabilistic hazard and risk analysis methods have been developed and have ... -
Process-based morphological and hydrological modelling of a glacially sculptured tidal inlet system, Vestvågøy, Lofoten
(Master thesis, 2021-10-01)This thesis investigates the decadal-scale morphological developments of a glacially sculptured tidal inlet system at the Lofoten archipelago in Norway. The tidal inlet system consists of three interconnected basins with ... -
Processes Prior and during the Early 18th Century Irish Famines—Weather Extremes and Migration
(Peer reviewed; Journal article, 2015-12-10)This paper advances the current debates on famine and famine history, with a focus on the first half of the 18th century in Ireland. Ireland was often hit by severe famines and two of them, specifically the famines of ... -
Processing and Interpretation of Multichannel Seismic Data from Isfjorden, Svalbard
(Master thesis, 2011-11-20)This research project is based on the processing and interpretation of nine 2D multichannel seismic profiles from Isfjorden, acquired in 2008, 2009 and 2010 by the University of Bergen. The first part of the thesis describes ... -
Processing and Interpretation of Multichannel Seismic Data from Van Mijenfjorden, Svalbard
(Master thesis, 2015-05-31)This work was done based on 10 multichannel seismic lines from Van Mijenfjorden, collected during Svalex in 2013 and 2014-. The objective of the thesis is twofold: 1. In the first part processing is done where emphasis has ...