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norskMastergradsoppgaver i geologi: Recent submissions
Now showing items 41-60 of 286
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Veikimorener i Norrbotten, Nord-Sverige – dødislandskap og morenebelter fra siste istid. Geomorfologisk tilnærming og GPR-profilanalyse av veikimorener innen den nordligste buen av veikimorenebeltet – Lainiobuen
(Master thesis; Mastergradsoppgave, 2020-12-30)Skandinavias glasiasjonshistorie er enda ikke kontinuerlig sammensatt for weichselistiden. I forhold til det fennoskandiske isskjoldet har nye studier avdekket alternative geokronologiske tolkninger for tidlig og midt weichsel i Nord-Sverige. Veikimorenelandskapet ble dannet over en stadial-interstadial syklus korrelert til tidlig weichsel av Lagerbäck (1988). Dette motstrides av moderne vitenskapelige ... -
Dynamically controlled hydrocarbon column heights in fault bounded traps of the Hammerfest Basin, SW Barents Sea. Fault valve theory applied to the Snøhvit field
(Master thesis; Mastergradsoppgave, 2019-11-18)During initial exploration efforts in the Barents Sea several gas prone and underfilled prospects were drilled which significantly dropped the interest in the area. The Hammerfest Basin however turned out to hold significant hydrocarbon volumes. Although still mostly underfilled, the discoveries here today make up the Snøhvit oil and gas field. The Hammerfest Basin is an overfilled petroleum basin, ... -
Structural analysis along seismic profiles trough late-Paleozoic deposits in Billefjorden and Sassenfjorden, Svalbard and their relation to the Billefjorden Fault Zone
(Mastergradsoppgave; Master thesis, 2020-11-09)The focus of this thesis is structural analysis of the Billefjorden Fault Zone astride Billefjorden and Sassenfjorden in Spitsbergen, with the use of seismic interpretation combined/aided by geological and bathymetric maps, field observations and well data. The aim is to describe structures and the tectonic development of the study area. The focus is on large tectonic events from Devonian to ... -
Sedimentology of Late Precambrian storm-influenced pro-deltaic successions: Varanger, eastern Finnmark
(Master thesis; Mastergradsoppgave, 2020-09-15)This study investigates the sedimentology of the Klubbnasen and Andersby formations of the Late Precambrian (Neoproterozoic) succession in Varanger, eastern Finnmark. Additionally, the lower parts of the Fugleberget and Paddeby formations overlying the Klubbnasen and Andersby formations, respectively, were superficially investigated in order to provide stratigraphic context. The investigated formations ... -
Analyse av paleozoiske forkastninger og deres relasjon til devon-karbon avsetninger langs Sassenfjorden og Tempelfjorden, Svalbard, basert på multiverktøy land og fjord-datasett.
(Master thesis; Mastergradsoppgave, 2020-09-02)Ledd i Billefjordforkastningssonen kan man finne på begge sidene av Sassenfjorden. Disse leddene er forsøkt knyttet sammen i denne analysen. Batymetriske data fra Sassenfjordens fjordbunn avslører rygger og andre strukturer som har en spennende innvirkning på de seismiske dataene. Hovedfunnene i denne analysen er kategorisert i tre kategorier. Kategori 1 omtaler en obskur sone på seismikken som ... -
Connecting the late Neoproterozoic flysch sedimentation in the Gariep Belt (Namibia) with its potential source region in southern Dom Feliciano Belt (Uruguay) – a U-Pb detrital and protolith zircon study.
(Master thesis; Mastergradsoppgave, 2020-06-22)The Dom Feliciano Belt in Uruguay represents a counterpart of the Gariep Belt in Namibia and these two belts are presently considered as relics of one orogen split by the Atlantic Ocean. In this study, two presumed flysch samples from the Marmora Terrane of the Gariep Belt in Namibia, and five samples from potential source areas in the Nico Perez Terrane of the Dom Feliciano Belt in Uruguay have ... -
Late Cenozoic development of the mid-Norwegian continental margin – a study of the Naust Formation based on 3D-seismic data
(Master thesis; Mastergradsoppgave, 2020-06-15)The late Cenozoic evolution of the outer continental shelf and slope on the northern part of the mid-Norwegian margin is studied using 3D seismic data. The late Cenozoic stratigraphy is subdivided into four main seismic units: unit A (oldest) to D and correlated to the established stratigraphic framework of the Naust Formation, where the oldest unit in this study correlates to the upper part of Naust ... -
Superimposed macro- and mesoscale folds, and their relation to ductile shear zones in the Karasjok Greenstone Belt, Finnmark, Norway
(Master thesis; Mastergradsoppgave, 2020-06-05)The Karasjok Greenstone Belt (KGB) is a N-S trending supracrustal belt in Northern Norway. The KGB may comprise economically important mineral resources. Thus, a better understanding of ore genesis and structural architecture is key information for future exploration. The purpose of this master thesis is to perform detailed structural analysis based on field work in the northern part of KGB. Field ... -
The rock slope failures at Låvan and Dusnjarga, Northern Norway. A comprehensive Quaternary, morphological and structural analysis
(Master thesis; Mastergradsoppgave, 2020-05-15)Rock avalanches and subsequent displacement waves represented the deadliest natural disaster in Norway in the past century. The two deep-seated and unstable slopes Dusnjarga and Låvan in Troms county (Norway) are clearly defined by morphological deformation features. Due to the steep fjord setting, a potential catastrophic rock avalanche could pose a severe threat to people and infrastructure along ... -
Upper Triassic to lower Cretaceous tectonostratigraphic development of the Barents Sea South East
(Master thesis; Mastergradsoppgave, 2020-05-27)The aim of this study is to investigate the tectonic- and evolutionary differences between major structural elements of the Barents Sea South East (BSSE) during the uppermost Triassic to lower Cretaceous. The study area comprises the following structural elements: the Bjarmeland- and Finnmark platforms, the Nordkapp- and Tiddlybanken basins, the Signalhorn-, Haapet- and Veslekari domes and the ... -
Glacial dynamics and fluid flow processes in Bjørnøyrenna and the Loppa High area, SW Barents Sea
(Master thesis; Mastergradsoppgave, 2020-05-15)During the Late Weichselian glaciation, the Bjørnøyrenna ice stream was the main outlet of the Barents Sea Ice Sheet. In this thesis, a 3D seismic dataset from the Loppa High, located in the main ice stream trunk, has been used to study the glacial sediment package, revealing details on pastglacial dynamics, fluid flow processes and gas hydrate formation. Three seismic horizons have been interpreted: ... -
Engineering geology of the Jettan rockslide, Kåfjorden
(Master thesis; Mastergradsoppgave, 2020-05-15)The unstable rock slope (URS) Jettan is located at Nordnesfjellet in Kåfjorden municipality in Troms and Finnmark County, 800 m above the fjord. The rockslide has an estimated volume of 6 Mm3, and moving at a rate of up to 50 mm a-1. Jettan is considered a “high risk object” within the Norwegian unstable mountain framework. This is due to the potential displacement wave impact to housings, infrastructure ... -
The relationship between shallow anomalies and gas-flaring on the flank of the Nordkapp Basin in the SE Barents Sea
(Master thesis; Mastergradsoppgave, 2020-05-18)This study investigates the north-east-subbasin of the Nordkapp Basin in the Barents Sea. Main focus has been on mapping shallow seismic anomalies from 3D data, their potential association with faulting and sub-surface structures, and further to compare the occurrence of seismic anomalies to possible gas-flares above the seabed from water column data. The stratigraphic intervals from Triassic to ... -
Last Glacial Maximum – Holocene palaeoenvironment in Bessel Fjord and southwestern Dove Bugt, Northeast Greenland
(Master thesis; Mastergradsoppgave, 2020-05-14)Marine studies reconstructing ice sheet conditions on the Northeast Greenland shelf and adjacent fjords since the Last Glacial Maximum (LGM) are sparse. As a result, the timing and origin of the deglaciation of the ice sheet over marine areas is not well constrained. This thesis aims to improve our understanding of the LGM, deglaciation, and Holocene ice dynamics of the Greenland Ice Sheet (GrIS) ... -
Analyse av strukturer og bevegelsesdata i det ustabile fjellskredområdet Gámmanjunni 3, Kåfjord kommune, Troms og Finnmark fylke. Med vekt på kontrollerende faktorer, skråningsprosesser, bevegelsesdynamikk og skredmodeller.
(Master thesis; Mastergradsoppgave, 2020-05-15)Gámanjunni 3 er et av de ustabile fjellpartiene i Norge med høyest bevegelseshastighet. Hovedmålet med studiet er å sammenstille gamle og nye feltdata, bevegelsesdata og geofysiske data fra tidligere studier ved Gámanjunni 3 til en helhetlig geologisk modell i 3D, og undersøke hvilke interne og eksterne faktorer som kontrollerer fjellpartiet. I tillegg skal det fokuseres på bevegelsesdynamikk, ... -
Stratigraphy, neo-tectonics and mass wasting of deep water drifts in the Fram Strait
(Master thesis; Mastergradsoppgave, 2020-05-15)The primary goal for this thesis was the reprocessing and interpretation of 2D seismic lines in the Fram Strait and West Svalbard Margin (WSM). Seismic data quality was significantly improved through the implementation of new processing steps that had previously not been applied, incl. e.g. burst removal and a more advanced type of migration. The reprocessed lines were acquired by CAGE over multiple ... -
Ice-sheet Dynamics and Postglacial Sedimentary Processes of Coastal Søre Sunnmøre, Southwest Norway
(Master thesis; Mastergradsoppgave, 2020-05-15)Submarine glacial landforms have been identified and mapped in order to reconstruct ice sheet dynamics and to describe postglacial sedimentary processes of coastal Søre Sunnmøre in southwestern Norway which lies between 62 and 62.5⁰N. Landform identification has been accomplished through analysis of high-resolution multibeam echosounder (MBES) bathymetric data, backscatter data, LiDAR data, video ... -
Fluid flow and faulting along the northern margin of the Loppa High
(Master thesis; Mastergradsoppgave, 2020-05-15)The Barents Sea is a large epicontinental sea and petroliferous basin, which is fairly unexplored compared to other regions of the Norwegian Continental Shelf (NCS). The structural configuration of the SW Barents Sea is characterized by a complex mosaic of structural highs, platforms and basins, reflecting the interplay between multiple tectonic phases. Late Cenozoic glacially induced subsidence and ... -
Late Cenozoic erosion in the SW Barents Sea, and its influence on salt movement
(Master thesis; Mastergradsoppgave, 2019-05-15)The late Cenozoic evolution of the southwestern Barents Sea shelf includes periods of uplift, erosion and glaciations. This part of the stratigraphy has been studied using 2D and 3D seismic data, with emphasis on the interplay between uplift, erosion and glaciations and salt movement. The study area comprises the Svalis, Samson and Norvarg domes and the Nordkapp Basin, where halokinesis has been a ... -
Salt movements in three provinces in the southwestern Barents Sea: development, timing, and implications of regional structural differences
(Master thesis; Mastergradsoppgave, 2019-05-15)This study has investigated salt movements in the Nordkapp Basin, on the Loppa High (Svalis Dome) and on the Bjarmeland Platform (Samson- and Norvarg domes). The aim is to discuss how differences in salt growth potentially relates to the structural evolution of - and differences between - these three provinces. Evaluation of seismic 2D- and 3D data together with well correlation, allowed a regional ...
