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norskMastergradsoppgaver i geologi: Nye registreringer
Viser treff 221-240 av 285
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Deglasiasjon og postglasial dalinnfyllingshistorie i Målselvdalen : en syntese basert på egne undersøkelser i øvre Målselvdalen og tidligere arbeid i midtre og nedre Målselvdalen
(Master thesis; Mastergradsoppgave, 2013-08-14)Dalinnfylling i Målselvdalen Øst er kartlagt og beskrevet på bakgrunn av feltarbeid, kvartærgeologisk kartlegging og littaraturstudier. Det er også basert på tidligere (av andre) undersøkelser i Målselvdalen. Målet har vært å beskrive deglasial og postglasial innfylling av Målselvdalen Øst. -
Isstrømdynamikk og havbunnsgeomorfologi fra deglasiasjonen av det sørvestlige Barentshav, basert på 3D-, 2D-seismisk og batymetrisk data
(Master thesis; Mastergradsoppgave, 2013-08-15)Batymetridata og 2D og 3D seismisk data og er brukt for å kartlegge formelementer i det sørvestlige Barentshavet. Megaskala glasiale lineasjoner (MSGL) kartlagt i de glasiale trauene indikerer tidligere isstrømaktivitet i Bjørnøyrenna og Djuprenna. Dynamiske endringer i strømningsretning er påvist fra MSGL med ulike orienteringer som kutter hverandre. Ut fra kartlagte MSGL er 10 strømningssett laget. ... -
The Nussir copper deposit: petrology, mineralogy, geochemistry and distribution of ore mineralization
(Master thesis; Mastergradsoppgave, 2013-06-28)The geology, petrography, mineralogy and geochemistry of the Nussir copper deposit in Finnmark, Northern Norway were studied during writing this thesis. The Nussir deposit of copper is a sedimentary-hosted hydrothermal deposit affected by low grade methamorphism and ductile deformation. The copper mineralization includes chalcopyrite, chalcocite, bornite, covellite, and digenite. The deposit contains ... -
Slope displacement patterns observed using satellite InSAR data in the Storfjord-Kåfjord-Lyngen region, Troms
(Master thesis; Mastergradsoppgave, 2013-05-15)Norway is particularly susceptible to large rockslides due to its many fjords and steep mountains. One of the most dangerous hazards related to rock slope failures are tsunamis that can lead to large loss of life. Many rockslides are clustered east of the Storfjord and Lyngen fjord in Troms county, northern Norway, where several mapped unstable rock slopes occur within the zone of sporadic permafrost. ... -
Late Paleozoic-Cenozoic fault correlation and characterization of fault rocks in western Troms, North Norway
(Master thesis; Mastergradsoppgave, 2013-05-29)The present work focuses on the mapping and description of onshore brittle fault zones on the SW Barents Sea Margin, within gneisses and granitic intrusions belonging to the West Troms Basement Complex. The description of the brittle structures includes the geometry, kinematics and fault rock characteristics, using DEM satellite imaging, structural field work and a microstructural analysis of the ... -
Landform assemblages in inner Kongsfjorden, Svalbard: evidence of recent glacial (surge) activity
(Master thesis; Mastergradsoppgave, 2013-05-15)Swath bathymetry and chirp data have been used to investigate the submarine landform assemblages in inner Kongsfjorden, Svalbard, to reconstruct glacial dynamics during the Late Holocene. Multiple sets of landforms include two types of glacial lineations (groove-ridge features and small, drumlinoid ridges), terminal moraines and associated debris lobes, as well as small push moraines, and indicate ... -
Geomorfologi av glasiale sedimenter basert på 3D seismikk fra Nordkappbanken, SV Barentshav
(Master thesis; Mastergradsoppgave, 2013-05-15)Den kvartære lagpakken er analysert med fokus på glasial geomorfologi. Dette er gjort ved bruk av tre-dimensjonale (3D) seismiske data fra Nordkappbanken, sørvestlige Barentshav. I tillegg til havbunnen er det identifisert 2 begravde flater som begge er påvirket av glasiale prosesser. Geomorfologien til den stratigrafisk grunneste av de begravde flatene viser flere store depresjoner som er opp til ... -
Geological setting and origin of a gold-mineralized zone at Myrefjellet, Mauken, Troms
(Master thesis; Mastergradsoppgave, 2013-05-07)In 2008 Scandinavian Highlands discovered a gold mineralization within the Mauken basement window. The Mauken basement window is a thought to be an eastward continuation of the West Troms Basement Complex which is a series of rocks with an age span from Neoarchaean to Paleoproterozic. The mineralization found in a steeply dipping NW-SE striking shear zone and is hosted in a meta-sedimentary unit. ... -
Ice stream dynamics inferred from seismic geomorphology from the Bjørnøyrenna and Nordkappbanken area, SW Barents Sea
(Master thesis; Mastergradsoppgave, 2013-05-15)The aim of this master thesis is to investigate ice streams dynamics in Bjørnøyrenna and Nordkappbanken areas in south-west Barents Sea shelf Ice streams are responsible for the drainage of majority of ice from ice sheet and play a key role in the dynamic nature and stability of ice sheets, based mainly on six 3D seismic data sets,. Regional 2D lines are also used to establish the regional stratigraphy ... -
Relationships between metamorphism and deformation in the Nordmannvik nappe, south of Lyngseidet: a focus on high grade relics
(Master thesis; Mastergradsoppgave, 2013-05-13)The Nordmannvik nappe (Lyngen fjord, northern Norway) is a high grade tectonic unit dominated by mylonitic garnet-kyanite-mica gneisses, with additional calc-sillicates, mafics and high grade relics. The unit was principaly deformed during the Scandian event of the Caledonian orogeny, reaching at least an upper amphibolite facies. A metamorphic peak, set at a minimum of 750°C / 0.9 GPa, has been ... -
Fluid flow features along the Bjørnøyrenna Fault Complex west of West Loppa High, SW Barents Sea
(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 ... -
Petrogenesis and tectonic setting of the mafic-ultramafic rock association from NW Senja, West Troms Basement Complex
(Master thesis; Mastergradsoppgave, 2013-01-31)The studied mafic-ultramafic rock association occurs within Archean tonalitic gneisses and metasupracrustal suites of the Astridal belt belonging to the West Troms Basement Complex in the northwestern part of the Senja Island. The rock association appears in lens-shaped bodies, up to 200 m long, which are oriented conformal to the major metamorphic fabric of the host rock. The rock association is ... -
Sand waves and sediment transport on the SW Barents sea continental slope
(Master thesis; Mastergradsoppgave, 2012-11-15)I study a sand-wave field in ~600 meters water depth on the continental slope offshore Northern Norway. Using multibeam bathymetry data from 2008 and 2011 and P-Cable high-resolution 3D seismic data from 2011, I characterize the field. Sand waves reach up to 6.6 m in height and have wavelengths as large as 140 m. They are mostly asymmetric in shape with the steepest side dipping to the northwest, ... -
Holocene sedimentary environments in Smeerenburgfjorden, Spitsbergen
(Master thesis; Mastergradsoppgave, 2012-11-15)Multi-proxy analyses of six sediment cores (including lithostratigraphy, physical properties, granulometric analyses, and XRF scanning), and analyses of swath bathymetry and chirp data were integrated to elucidate the Holocene sedimentary processes and palaeoenvironments in Smeerenburgfjorden, northwest Spitsbergen. Three basins separated by two sills define the present-day large-scale bathymetry. ... -
3D seismisk analyse av rasavsetninger fra Sklinnadjupraset på midtre delen av Vøringmarginen
(Master thesis; Mastergradsoppgave, 2012-11-15)I denne oppgaven har 3D seismiske data blitt benyttet for å studere den øvre del av Naustformasjonen fra den midtre delen av Vøringmarginen på den midt-norske kontinentalmarginen. Oppgavens hovedfokus har vært å beskrive og tolke paleomiljøet i perioden 0,8 Ma og frem til nåtid med hovedfokus på Sklinnadjuprasets utvikling og genesen av de ulike rasavsetningene i studieområdet. En seismisk stratigrafi ... -
Shallow gas accumulation in glacigenic sedimentary formation of the mid-Norwegian margin north of Storegga slide (Helland Hansen 3D cube)
(Master thesis; Mastergradsoppgave, 2012-06-25)My master thesis concentrates on the distribution of gas accumulation to infer vertical fluid migration in sedimentary formations of Eocene-Oligocene (Brygge Formation) and Pliocene-Pleistocene (Naust Formation) in the mid-Norwegian margin at the Helland Hansen Arch, north of the Storegga slide. The seismic interpretation is based on “Helland Hansen 3D cube SH9602”. The N-S oriented Helland Hansen ... -
Tinnvatnformasjonen i Vannas proterozoiske lagrekke : sedimentære facies og avsetningsmiljø
(Master thesis; Mastergradsoppgave, 2012-06-15)Vanna representerer den nordøstligste utstrekningen av Vest-Troms gneisregion, som består av neoarkeiske til paleoproterozoiske provinser intrudert av mafiske og felsiske intrusjoner, samt en rekke suprakrustalbelter hvor Vannagruppen utgjør ett av dem. Den sandige Tinnvatnformasjonen utgjør den nedre delen av Vannagruppen, hvor den er konformt overlagret av den mer finkornige Bukkheiaformasjonen. ... -
Seismic evidence for fluid migration and gas accumulation in sediment formation beneath the giant Storegga slide complex (Grip high 3D cube)
(Master thesis; Mastergradsoppgave, 2012-06-25)The study area covers the northern sidewall of the Storegga slide located at the southern limit of the Vøring Plateau. The water depth at mid-Norwegian margin varies approximately between 500 and 1500m. The mid-Norwegian margin area has been known to be prone for submarine sliding and is therefore a key location for studying morphological features to improve our understanding of slide mechanisms. ... -
Development of the Late Paleozoic, Mesozoic and Cenozoic sedimentary succession in SW Barents Sea and their role in fluid leakage process
(Master thesis; Mastergradsoppgave, 2012-06-15)2D seismic and well data have been used to understand the geological evolution of the SW Barents Sea by interpreting different seismic units and to evaluate their role in distribution of fluid migration system. Eight seismic unit including seafloor are identified in the study area based on well tie with seismic data. Torsk and Kolmule formation show western progradational pattern suggesting deposition ... -
Structural geometry and controlling factors for a rock slope failure area at Hompen/Váráš, Signaldalen, Troms, North Norway
(Master thesis; Mastergradsoppgave, 2012-05)Abstract This thesis uses a multidisciplinary approach to investigate factors affecting the origin and evolution of a rock slope failure (RSF) at Hompen (Varas) in Troms, Northern Norway. These factors include internal existing structures in the bedrock, external factors such as glacial unloading, and changes in fluid pressure affecting the RSF. The study combines bedrock geology, structural ...
