Combination of field studies and analytical techniques provides the basis for unravelling the tectonic evolution of the continental crust. Here field studies together with the ID-TIMS method for U/Pb-dating have been applied ...

In spite of increasing surface temperatures, a falling trend in surface insolation has been observed over the past 50 years at stations worldwide, and a link to anthropogenic aerosols has been suggested. In the present ...

This thesis focuses on how variations in snow water equivalent (SWE) and snow covered area (SCA) influence the process of snowmelt on macro- and localscale and how this could be simulated with proper results in a hydrological ...

Abstract Debris flows represent a major threat to human life and property. Due to their ability of entraining material and reaching long run-outs, they have a potential of causing massive damage. There are many studies ...

Aerosols may affect the atmosphere and climate in different ways. Greenhouse gases, Carbondioxide for instance, tend to heat the atmosphere because of the greenhouse effect. Aerosol particles however such as sulphat, can ...

Nordre Rena er gjennom de siste hundre åra utsatt for betydelige inngrep. Dette omfattet bl.a. erosjonssikring, forbygning, senkning, utretting og kanalisering. Målet i denne oppgava er å finne ut om elva er i likevekt, ...

Altogether 163 observations of the Sechi disk depth, collected from April to October in the Nordic Seas, are presented together with salinities, other environmental parameters and positions. The Sechi disk depth ranges ...

An attempt was made to identify the degree and main control of early diagenesis. It was evident that the more porous, channel sandstone units provided a better pathway for fluidflow and were thus subject to a greater degree ...

The Early Cretaceous, Barremian – Aptian Helvetiafjellet Formation is a well exposed paralic succession deposited at ramp-type shelf of the Borealic sea in the Svalbard region. The Ullaberget section in the Van Keulenfjorden ...

Fronten av fire tidevannsbreer utgjør kalvingsbukta innerst i Van Keulenfjorden, en 43 km lang nordvest-sydøst orientert fjord sydvest på Spitsbergen. Zawadskibreen, Nathorstbreen, Liestølbreen og Doktorbreen går sammen ...

The 40 km diameter Mjølnir Crater was formed 142 ± 2.6 Ma (Volgian-Ryazanian boundary) by the impact of a 1.6 km diameter asteroid into the 350-400 m deep paleo-Barents Sea. The structure is buried and well preserved in ...

The Caledonian Orogen in East Greenland comprises an autochthonous basement complex overlain by a Late Proterozoic to Early Proterozoic cover sequence with a regionally extensive thrust sheet complex on top. The thrust ...

The Imsdalen Submarine Fan Complex is a gravel and coarse sand dominated turbidite fan system. The fan complex was deposited in the Neoproterozoic Hedmark rift basin close to a basin margin bordered by the Imsdalen Fault. ...

Orographically enhanced winds near the coast of Norway were investigated by changing the height of the orography. Two cases were chosen, one for Stad (Sta97) and one for Jæren (Jæ96), both being winter situations with ...

Since its development in 1974 the Q-system for classifying rock masses has readily been used for dimensioning support measures in underground excavations in Norway and internationally. The Q-system, as it was originally ...

Abstract This thesis is written as a part of the Cand. Scient. degree at the Institute for Geosciences at the University of Oslo. Traditionally, age determinations of late Cretaceous chalks in the Central Graben in the ...

English abstract This thesis was written on the purpose of identifying and characterising a hydrothermal vent complex, associated with sill complexes at lower stratigraphic levels. The studied hydrothermal vent complex, ...

The spring flood is a multivariate event that can be characterized by the floodcharacteristics peak discharge, duration and volume. Traditionally these flood characteristics have been modelled separately, but by modelling ...

A re-description and a re-classification is made for the plesiosaur specimen PMO A 27745 previously identified in 1962 as Tricleidus svalbardensis Persson. In all probability the fossil is from the Slottsmøya Member of ...

I dette hovedfagsarbeidet gir en stratigrafisk oversikt og faciestolkning av Melke- og Spekkformasjonen fra brønn 6507/7-5, basert på foraminiferanalyser kombinert med data fra organisk geokjemi, for å belyse avsetningsmiljøet ...

Store deler av Svalbard var i tidsrommet sen trias mellom jura en grunn shelf med kondensert sedimentasjon. Knorringfjellformasjonen representerer avsetningene fra denne perioden i sentrale deler av Spitsbergen. Vekslende ...

The use of petroleum inclusions in petroleum and reservoir geology is a relative new tool utilized to get a better understanding of petroleum generation and migration, paleo-fluid distribution in traps, and the organic ...

To learn more about the fluids that were present in the Canary Islands oceanic crust during the magmatism, fluid inclusions in gabbroic xenoliths from Lanzarote and La Palma have been studied. The fluids were originally ...

Abstract This work focuses on the two towns most exposed for flooding in Norway: Lillestrøm which lies alongside Lake Øyeren, and Hamar which is situated near Norway’s largest lake, Mjøsa. The main objective of this work ...

Oppgaven omhandler klassifikasjon av terrengparametere, såkalt relieffklassifikasjon, for automatisk landformkartlegging. Som bakgrunn for dette ligger antagelsen om at det eksisterer en sammenheng mellom overflateprosess ...

From May 21-27, 1999, a wide-angle seismic experiment was carried out in the Skagerrak Graben. The experiment was a combined effort of the department of Geology, University of Oslo and Geomar, Kiel (as partners in the ...

Institute report series. Universitetet i Oslo. Institutt for geofysikk; 117(2000)