The aim for this study is to characterise and distinguish natural and anthropogenic deposition in Bøkfjorden, and to identify the spreading and the impact of submarine tailings placements on the seafloor. The analyses are based on the integration of swath bathymetry, high-resolution seismics and multi-proxy analyses of four sediment cores The physical properties, including magnetic susceptibility ...

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 ...

The Van Keulenfjorden transect on Spitsbergen offers valuable insight into submarine processes, with well exposed seismic scale clinoforms of Paleocene and Eocene age, which show the distribution of sediments from deltaic to basin floor environments. Several progradational submarine fans are preserved as cliffs on Hyrnestabben. They serve as an analogues to coarse grained submarine fans in provinces ...

The Sulitjelma deposits, Nordland, Northern Norway, with more than 20 Zn-Cu ore bodies (total tonnage excesses 35 Mt of ore at 1.84 % Cu, 0.86 % Zn, 10 g/t Ag and 0.25 g/t Au) have been described as a classic example of the Zn-Cu volcanogenic massive sulfide (VMS) mineralization. The mineralization is spatially associated with metamorphosed mafic rocks of Ordovician age. Both, ore bodies and their ...

An approximately 1 meter wide NE-SW-oriented mylonitic shear zone hosts hydrothermally precipitated quartz and carbonate veins. The shear zone mainly consists of a secondary mylonitic fabric enriched in chlorite. A similar mylonitic shear zone striking NE-SW, oriented parallel to the axial plane of a F3-fold, consists of the same secondary mylonitic chloritized fabric and are therefore assumingly ...

This study investigates the paleoceanographic changes in the Hinlopen Strait, situated between Spitsbergen and Nordaustlandet, through a multi-proxy analysis of sediment core HH15-1280-GC (439 m water depth). Located near the Polar Front, this region is highly sensitive to even minor alterations in the ocean circulation and climate, which can be reconstructed from marine sediment records. The core ...

To kjerner fra Ingøydjupet i sørvest Barentshavet, 11HH-152MC og JM06-012GC, er blitt undersøkt for å undersøke den paleo-klimatiske og paleo oseanografiske utviklingen i Barentshavet. Dette er rekonstruert basert på undersøkelser av bentiske foraminiferer og kornfordeling. Kjernenes lengde er på henholdsvis ca 50 cm og 200 cm og 3 radiokarbon dateringer ligger til grunn for alderskronologien. ...

The focus of this master thesis is to investigate the paleoenvironmental and paleoceanography during the last deglaciation in Leirdjupet, a small submarine trough in the southwestern Barents Sea. The lower half of the piston corer HH15-1303PC has been investigated for the distribution pattern of benthic foraminifera faunas, ice rafted debris (IRD), lithology and oxygen and carbon isotopes covering; ...

Three gravity cores were collected from an unexplored site in the northern flank of the Olga Basin, Barents Sea. The lack of data from the central Barents Sea prompted this investigation and led to defining the evolution of the environment and ice sheet transitions over the Holocene. The three cores underwent benthic foraminiferal studies in combination with stable isotope analysis of (δ18O and δ ...

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 ...