Understanding the fluid flow and the related fluid expulsion from gas chimneys and pipe structures is very important to our environment, since seeping methane has a great influence on our Earth’s climate. Chimneys are found in many places in the world, for instance at the Vestnesa ridge offshore western Svalbard and at the Nyegga region on the mid Norwegian margin. Plumbing systems and chimney ...

Rockfalls are blocks of rock that bounce and roll down slopes. They are commonly detached from rock-slopes with inclinations over 40-45°. They embody high energy and mobility and are a major cause of landslide related deaths. Rockfalls can be simulated using empirical relationships and modelling, of which 2D and 3D variants exist for the latter. 3D models allow for rock fragment- and surface shape ...

The presence of eclogites is one of the strongest evidences for high pressure metamorphism, and for the presence of a paleo subduction zone. Deformation of eclogites can yield important information about the kinematics of subduction zones. The main mechanism for fabric development in eclogites is still a matter of debate among various research groups and has split the field in two. Most previous ...

Two sediment cores HH14-002 GC and HH12-930 GC from Vestnesa Ridge in the eastern part of Fram Strain have been investigated to reconstruct the paleoclimate and paleoceanographic conditions during the last ~37,000 years, and to study possibly changes in emission of methane from the seabed through time. Core HH14-002 GC was taken from outside a pockmark, while core HH12-930 GC was taken from inside ...

Tre kanjoner på kontinentalskråningen utenfor Lofoten er studert ut fra multistråle batymetridata, høyoppløselig seismiske data og foto av havbunnssedimenter. Formålet med denne studien er å diskutere dannelse, utviklingen av og den yngste aktiviteten i de tre kanjonene. To hovedhypoteser vedrørende kanjoners dannelse råder i dag; dannelse fra bunn av kontinentalskråningen og oppover eller fra ...

This study investigates for the first time the tide-influenced fjord-head delta in Dicksonfjorden, a fjord in central Spitsbergen, Svalbard. In order to examine the deposits and processes, sediment cores, surface observations and bulk samples have been obtained. Sedimentary facies, log transects and composite logs are presented. Sediment cores are dated with the 210Pb dating method to provide an ...

This study is conducted in Ranfjorden in northern Norway with the goal of gaining a better understanding of the interaction between natural and anthropologic sediments within the fjord. Ranfjorden is of interest due to the fact that it has experienced extensive anthropologic impacts over the last 100 years with the submarine tailings placement (STP) of mine tailings ongoing. The analysis of this ...

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, ...

SAMMENDRAG Vannøya ligger lengst nord i Vest- Troms gneisregionen, en provins bestående av neoarkeiske til mesoproterozoiske bergarter av varierende sammensetning. Området var utsatt for en langvarig fase med rifting som skjedde som følge av oppsprekkingen av det Arkeiske kontinentet. Hovedfasen av riftingen fant sted for 2.5-2.4 Ga siden. Den mafiske intrusjonen på Vannøya har vært utsatt for en ...

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 ...