Blar i tittel Mastergradsoppgaver i geologi

Viser treff 51-70 av 271

    • Faulting and the relationship to fluid migration and shallow gas accumulation in the Hammerfest Basin, SW Barents Sea 

      Edvardsen, Anders (Master thesis; Mastergradsoppgave, 2015-05-01)
      This thesis has focused its efforts to identify and map faults and their relationships to shallow gas accumulations and fluid flow features. The area of this investigation lies in the hydrocarbon-prone Hammerfest Basin in the southwestern Barents Sea, above the Base Cretaceous. Nine 3D seismic datasets were used in this study, aiming to improve the knowledge of the timing of the tectonic activity ...

    • First-order estimation of in-place natural gas resources at the Nyegga gas hydrate prospect, mid-Norwegian Margin 

      Senger, Kim (Master thesis; Mastergradsoppgave, 2009-12-07)
      Gas hydrates are solid compounds of a guest gas molecule (primarily methane) enclosed in a lattice of host water molecules, occurring under specific pressure-temperature conditions in both natural and manmade environments. In the past decade, gas hydrates are increasingly investigated as a potential new energy source. This thesis presents an integrated evaluation of the gas bound within the hydrate ...

    • Fjellskred i Laksvatnfjellet, Balsfjord, Troms: indre struktur, morfologi og skredmekanismer 

      Rasmussen, Elisabeth (Master thesis; Mastergradsoppgave, 2011-05)
      Forskning relatert til fjellskred har oftest fokusert på geomorfologiske fenomener og overflateprosesser, og i mindre grad den betydningen strukturen i berggrunnen kan ha for utrasning. Studiet av fjellskredet i Laksvatnfjellet er en kombinasjon av fagfeltene berggrunnsgeologi, strukturgeologi og geomorfologi. Til sammen har dette dannet grunnlaget for å kunne tolke blant annet skredmekanismer, ...

    • Fjellskred i Nomedalstinden : en strukturstyrt masseutglidning på et underliggende storskala glideplan 

      Husby, Emil Danielsen (Master thesis; Mastergradsoppgave, 2011-06)
      En studie av et fjellskred klassifisert som en katastrofal masseutglidning på et underliggende glideplan. Fjellskredet befinner seg i Nomedalstinden på nordøstsiden av Kåfjorden i Troms fylke. Skredet har oppstått i planfolierte granatglimmergneiser i Kåfjordgruppen i Reisadekkekomplekset. Bergartene er gjennomsatt av et sprekkemønster med flere populasjoner av sprekker. Observasjoner gjort i felt ...

    • Fjellskred ved Indre Nordnes, Nordnesfjellet, Lyngen, Troms - Berggrunnens indre struktur og bevegelsesmekanismer basert på strukturell analyse og overvakingsdata 

      Hernes, Ingunn (Master thesis; Mastergradsoppgave, 2014-05-16)
      Gravitasjonell reaktivering av pre-eksisterande kaledonske duktile svakheitsoner i tillegg til post-kaledonske sprø strukturar som truleg har vorte utløyst ved glasial avlasting like etter nedsmeltinga av isen under siste istid har truleg gitt opphav til skråningsdeformasjonen og utviklinga av det ustabile fjellpartiet Indre Nordnes. Skredområde Indre Nordnes er initierande tektonisk styrt der ...

    • Fluid flow and faulting along the northern margin of the Loppa High 

      Binde, Cornelia Mentzoni (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 ...

    • Fluid flow features along the Bjørnøyrenna Fault Complex west of West Loppa High, SW Barents Sea 

      Larsen, David Selvåg (Master thesis; Mastergradsoppgave, 2011-11-15)
      This master thesis contributes to better understand the occurrence and development of giant to medium scale vertical fluid flow structures in the area west of the Loppa High at the Bear Island Fault Complex (BIFC). The study area lies in the SW-Barents Sea and the study was based on the interpretation of a 3D seismic cube “West Loppa 2008”. Fluid emissions features and accumulation area visualized ...

    • Fluid-flow expressions at Vestnesa Ridge of the NW -Svalbard Margin 

      Frantzen, Jon Hermann Pilskog (Master thesis; Mastergradsoppgave, 2008-11-15)
      The Vestnesa Ridge is a 100 km long and ≈3 km wide sediment drift NW of the Svalbard Margin deposited on young oceanic crust. The crest of the Vestnesa Ridge is pierced by 133 pockmarks, where the orientation and elongation is controlled mainly by processes such as positioning of faulting, creeping of sediments or similar down-slope processes. High resolution single seismic reflection data together ...

    • Fluidmigrasjon og akkumulasjon på Loppahøyden i sørvestlige deler av Barentshavet 

      Dahl, Petter Bergholtz (Master thesis; Mastergradsoppgave, 2011-05)
      Mulig bevis for vertikal migrasjon av fluider gjennom forkastninger i sørvestlige deler av Barentshavet eksisterer i form av akustisk maskerte områder, tegn til akkumulasjoner og pockmarks. Alle områder med vertikal akustisk maskering forekommer i sammenheng med forkastninger som foreslås å fungere som strømningsveier for fluidene. Maskeringen er funnet i et intervall fra 570 ms TWT til 1590 ms TWT ...

    • Fractured carbonates in the Mediumfjellet thrust-stack in the Tertiary fold-and-thrust belt of Spitsbergen 

      Larsen, Tine (Master thesis; Mastergradsoppgave, 2009-01-15)
      This thesis describes a study that was carried out in the Tertiary fold-and-thrust belt of Svalbard, in the mountain range of Mediumfjellet summer 2007 and 2008. The focuses were on: i) further describing the larger structures of the Mediumfjellet, ii) analyze the fracture distribution in the limestone beds associated with the major structures in the area. Available data sets are based on photo ...

    • Gas migration and sealing modelling in the Haapet Dome area, Norwegian Barents Sea - analysis of seismic anomalies and water column data 

      Moen, John-Einar Karlsen (Master thesis; Mastergradsoppgave, 2020-05-15)
      Seismic interpretation, water column data, and well information have enabled a thorough review of shallow amplitude anomalies and subsurface faulting, in conjunction with possible migration pathways in the Haapet Dome area. The processed water column data from the MAREANO-program was presented and evaluated in accordance with potential gas leakage from the seafloor. Water column imaging illustrates ...

    • Gas seeps in the Barents Sea – how does the geology influence the natural and well related seeps? 

      Nguyen, Hieu Khanh (Master thesis; Mastergradsoppgave, 2021-07-15)
      This thesis examined gas flares found in the Cruise log 20-2 from CAGE and correlated them to subsurface seismic data in south of Barents Sea. The cruise log passed several hydrocarbon discoveries/fields such as Goliat, Caurus/Langlitinden, Norvarg and Wisting/Hanssen. The aim of the thesis is to investigate the relationship between shallow geology and the observed gas flares and seabed leakages. ...

    • Geochemical characteristics of sediment- and mafic rock-hosted Cu deposits in the Kåfjord area, Alta-Kvænangen Tectonic Window, Northern Norway 

      Simonsen, Sondre Stenvold (Mastergradsoppgave; Master thesis, 2021-06-15)
      The Precambrian Alta-Kvænangen Tectonic Window (AKTW) located in the northern part of Norway, hosts different types of copper mineralization. Some of Cu occurrences have been previously mined, but their geochemical and stable isotope characteristics have not been a subject of detailed investigations, and therefore the relevant ore-forming processes are still poorly understood. This study, brings new ...

    • Geochemical investigations of northern Norwegian fjord sediments - Sources and spatial variability of marine and terrigenous components 

      Canzler, Lea Philine (Master thesis; Mastergradsoppgave, 2016-05-11)
      Fjords represent unique coastal marine environments with high sedimentation rates. They can be used for intensive investigations focusing on geochemical, mineralogical, biological, and sedimentological processes. In this study I investigate 42 surface sediment samples from the outer and inner parts of the Vestfjord, Ofotfjord, Tysfjord and tributary fjord arms in northern Norway. Samples were analysed ...

    • The geochemical signature of Cu mineralisation preserved in stream sediments from the Alta-Kvænangen Tectonic Window, Northern Norway 

      Hilmo, Johan Bang (Master thesis; Mastergradsoppgave, 2021-06-13)
      The Paleoproterozoic Greenstone Belts of Fennoscandia are metamorphosed and deformed volcanic and sedimentary basins with a high metallic ore potential. One of those, the Alta-Kvænangen Tectonic Window (AKTW), is exposed as a window below the Caledonides of Northern Norway. The Kåfjord area located within the AKTW hosts numerous known Cu occurrences. The Cu mineralisation in Kåfjord occurs mostly ...

    • Geochemistry of rutile-bearing veins at Engebøfjellet, Naustdal, Norway. 

      Grane, Kristoffer (Master thesis; Mastergradsoppgave, 2018-11-15)
      The Engebøfjellet eclogite, located in Naustdal, Norway, contain quartz veins with large rutile (TiO2) phenocrystals. Trace element composition of rutile deposited in veins and in the eclogite matrix was analysed with the use of LA-ICP-MS. The Nb content decrease with increasing V in the rutile, and contents of these elements vary depending on depositional environment. One quartz vein associated ...

    • Geochemistry of the stratiform iron Dunderlandsdalen deposits, Nordland 

      Rolsted Lie, Kristian (Master thesis; Mastergradsoppgave, 2019-05-15)
      The Dunderlandsdalen iron district, Northern Norway, hosts a world-class stratiform Fe-mineralization (total tonnage of ~500 Mt at 33% Fe). The iron ore units belong to the Dunderland Formation in the Ramnålia Nappe, which further belongs to the Rødingsfjellet Nappe of the Caledonian Uppermost Allochthon. Hematite and magnetite represent the principal ore minerals and are hosted by amphibolite grade ...

    • Geofaglig kunnskap og holdninger til norsk petroleumsnæring. En casestudie av Alta/Gohta 

      Forsberg, Mariann (Master thesis; Mastergradsoppgave, 2018-05-15)
      Denne oppgaven har som hovedfokus å belyse holdninger og geofaglig kunnskap knyttet til norsk petroleumsnæring. Oppgaven tar utgangspunkt i olje- og gassfunnene Alta/Gohta i Barentshavet. Et geofaglig litteraturstudie har blitt gjennomført for å oppnå en forståelse av funnenes geologi og særegenheter. Intervjuer med norsk petroleumsnærings hovedaktører; olje- og energidepartementet, oljedirektoratet, ...

    • Geological controlling parameters on seismic imaging of igneous intrusions on Svalbard 

      Toonen, Ruud (Master thesis; Mastergradsoppgave, 2017-05-15)
      Imaging and mapping igneous intrusions such a sills and dykes has been one of the challenges in recent years. However, igneous intrusions in seismic data have properties that make them good targets for visualization, such as high amplitude and sophisticated shapes. 3D visualization methods are especially well suited for sill reflections. One of the main limitations of tying offshore seismic data to ...

    • Geological fluid flow systems at Nyegga of the Mid-Norwegian margin 

      Weibull, Wiktor Waldemar (Master thesis; Mastergradsoppgave, 2008-11-15)
      The Nyegga area is located at the north-eastern escarpment of the large Storegga Slide on the south of the Vøring plateau. The region has long been a natural laboratory for shallow fluid flow investigations, mainly due to the large number of fluid flow expressions found on the bathymetric and seismic data, and the possibility to investigate the relationship between fluid flow, gas hydrate formation ...