Blar i Department of Earth Science på tittel
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PaCTS 1.0: a crowdsourced reporting standard for paleoclimate data
(Journal article; Peer reviewed, 2019-09)The progress of science is tied to the standardization of measurements, instruments, and data. This is especially true in the Big Data age, where analyzing large data volumes critically hinges on the data being standardized. ... -
Palaeo-productivity record from Norwegian Sea enables North Atlantic Oscillation (NAO) reconstruction for the last 8000 years
(Journal article; Peer reviewed, 2020)The North Atlantic Oscillation is the dominant atmospheric driver of North Atlantic climate variability with phases corresponding to droughts and cold spells in Europe. Here, we exploit a suggested anti-correlation of North ... -
Paleoceanography and paleoclimate in the Nordic Seas and the northern North Atlantic during the last 22 000 years
(Doctoral thesis, 2006-09-01)The paleoceanography of the Nordic Seas and the northern North Atlantic during glacial and deglacial times was studied, using oxygen isotopes and Mg/Ca of foraminifera. The specific objectives are listed below: 1) Sea ... -
Paleoclimate changes inferred from stable isotopes and magnetic properties of organic-rich lake sediments in Arctic Norway
(Peer reviewed; Journal article, 2011-03-22)Stable isotope measures in organic matter are frequently used as indicators of past climate change. Although such analyses can provide valuable information, there is considerable uncertainty associated with studies of ... -
Paleokarst reservoir modelling - A concept-driven approach
(Doctoral thesis, 2021-08-20)A significant proportion of the world's hydrocarbon production comes from paleokarst reservoirs. Although these reservoirs boast some of the most productive wells in oil history, the recovery factor is relatively low ... -
Paleomagnetisk bestemmelse av lokale blokkrotasjoner ved Izmir, Tyrkia
(Master thesis, 2010-09-03)Dagens Tyrkia ligger midt i sonen hvor den Arabiske- og Afrikanske platen kolliderer med den Eurasiske platen. Kollisjonen har ført til at den Anatoliske mikroplaten blir "presset" vestover, og ut i Egeerhavet, som igjen ... -
Paleomagnetiske undersøkingar av dei ediacariske Stappogjedde og Mortensnes formasjonane, Varangerhalvøya, Finnmark
(Master thesis, 2012-05-19)Det tilgjengelege paleomagnetiske datagrunnlaget frå Baltica er mangelfullt og knapt i sein neoptroterozoisk tid, og gjev eit forvirrande bilete av paleogeografien til Baltica. Dette har ført til teoriar om raske ... -
Palynological dating of the upper part of the De Geerdalen Formation on central parts of Spitsbergen and Hopen
(Master thesis, 2013-05-31)The Late Triassic is the most problematic period in terms of resolution and age control. The period spans about 36 million years and consists of three stages - Carnian, Norian and Rhaetian. Only four clusters of radiometric ... -
Passive seismic recording of cryoseisms in Adventdalen, Svalbard
(Journal article; Peer reviewed, 2021)A series of transient seismic events were discovered in passive seismic recordings from 2-D geophone arrays deployed at a frost polygon site in Adventdalen, Svalbard. These events contain a high proportion of surface wave ... -
Permian-Triassic tectonic-stratigraphic evolution of the Stord Basin, northern North Sea
(Master thesis, 2016-08-19)The Stord Basin is one of the less explored areas of the northern North Sea, hence the Permian- Triassic tectono-stratigraphic evolution of the basin is not well known. This MSc thesis aims to use available 2D seismic and ... -
Persistence of arctic-alpine flora during 24,000 years of environmental change in the Polar Urals
(Peer reviewed; Journal article, 2019-12-23)Plants adapted to extreme conditions can be at high risk from climate change; arctic-alpine plants, in particular, could “run out of space” as they are out-competed by expansion of woody vegetation. Mountain regions could ... -
Pervasive cold ice within a temperate glacier – implications for glacier thermal regimes, sediment transport and foreland geomorphology.
(Peer reviewed; Journal article, 2019-03-07)This study suggests that cold-ice processes may be more widespread than previously assumed, even within temperate glacial systems. We present the first systematic mapping of cold ice at the snout of the temperate glacier ... -
Petrography and U-Pb SHRIMP zircon geochronology of basement samples from a key area in central Dronning Maud Land, East Antarctica: Implications for the eastern extension of the Grenville-age Maud Belt in Antarctica
(Master thesis, 2017-06-15)Central Dronning Maud Land, East Antarctica represents a key area for the understanding of previous supercontinent assemblies. This study reports U/Pb SHRIMP ages and petrographic descriptions for nine samples collected ... -
Petrography, geochemistry and sedimentology of sandstones from the Central Tertiary Basin of Svalbard – implications for diagenesis and temperature history
(Master thesis, 2019-10-03)Svalbard, representing an uplifted area of the north-western Barents Sea Shelf, provides a unique opportunity for studying on-shore outcrops of the shelf. The present study focuses on Paleocene-Eocene deposits of the Central ... -
The Petroleum Systems of the South Viking Graben, Norway
(Doctoral thesis, 2006-05-05) -
Petroleum, coal and research drilling onshore Svalbard: a historical perspective
(Peer reviewed; Journal article, 2019)The beginning of the Norwegian oil industry is often attributed to the first exploration drilling in the North Sea in 1966, the first discovery in 1967 and the discovery of the supergiant Ekofisk field in 1969. However, ... -
Petrology and Provenance of the Upper Cretaceous Strata in Central Utah
(Master thesis, 2015-06-01)The reservoir quality of sandstones is primarily controlled by the primary composition of the rock volume and the effects of later diagenetic processes. Much work has been done to improve the understanding of diagenetic ... -
Petrophysical properties of deformation bands and their influence on fluid flow in carbonate grainstones: insights from the Maghlaq Fault, Malta.
(Master thesis, 2015-06-08)Deformation bands are tabular, sub- centimeter thick zones, which accommodates shear and/or volumetric deformation. Only a few examples of deformation bands have been documented in porous carbonate rocks, and the knowledge ... -
Petrophysical Properties of Deformed Sandstone Reservoir
(Master thesis, 2012-06-21)Small scale deformation structures that mostly occur in highly porous rocks are called deformation bands. Petrophysical characteristics of deformation bands are different from those of host rock and they can act as barriers ... -
Physical and Chemical Processes in the Bjerkreim-Sokndal Magma Chamber
(Doctoral thesis, 2010-03-19)