Blar i Department of Earth Science på tittel
Viser treff 269-288 av 1050
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Evolution of talc- and carbonate-bearing alterations in ultramafic rocks on Leka (central Norway)
(Master thesis, 2014-02-05)The thesis focuses on several low-angle fracture zones within the ultramafic section of the Leka Ophiolite Complex, central Norway, along which the original lithology has been completely serpentinized and carbonated. The ... -
Evolution of tropical land temperature across the last glacial termination
(Journal article; Peer reviewed, 2022)The tropical West Pacific hosts the warmest part of the surface ocean and has a considerable impact on the global climate system. Reconstructions of past temperature in this region can elucidate climate connections between ... -
Exceptionally high heat flux needed to sustain the Northeast Greenland Ice Stream
(Journal article; Peer reviewed, 2020)The Northeast Greenland Ice Stream (NEGIS) currently drains more than 10 % of the Greenland Ice Sheet area and has recently undergone significant dynamic changes. It is therefore critical to accurately represent this feature ... -
Exhumation history and tectonic across the Hardangerfjord Shear Zone, using apatite fission track thermochronology
(Master thesis, 2012-02-09)ABSTRACT The Hardangerfjord Shear Zone (HSZ) is a large scale, ductile low angle shear zone, with SW-NE trending and NW dipping direction in the Caledonian crust. This zone has been formed at about 408-402 Ma (Fossen, 1992, ... -
Exhumation of the Caledonian Orogenic Infrastructure in West Norway : Concepts – Structures – Ages – Reactivation
(Doctoral thesis, 2020-05-19)Domes of high-grade metamorphic rocks are found in recent and ancient orogens alike. They commonly expose parts of the deep interior of mountain belts, the so-called orogenic infrastructure. This thesis explores the ... -
Experimental investigation of deformation mechanisms during shear-enhanced compaction in poorly lithified sandstone and sand
(Peer reviewed; Journal article, 2013-08-27)Shear-enhanced compaction in shallow sandstone reservoirs has been investigated in laboratory experiments using high-pressure triaxial testing of poorly lithified sandstone and sand. We have studied the deformation mechanism ... -
Experimental investigations of Magnetization processes in Chinese loess
(Doctoral thesis, 2011-11-25) -
An experimental study of the effect of water and chlorine on plagioclase nucleation and growth in mafic magmas: application to mafic pegmatites
(Journal article; Peer reviewed, 2023)In this study, the effects of H2O and Cl on the grain size and nucleation delay of plagioclase in basaltic magma were investigated using dynamic and equilibrium experiments at 1150 ∘C, 300 MPa, and oxygen fugacity between ... -
Exploring seismic detection and resolution thresholds of fault zones and gas seeps in the shallow subsurface using seismic modelling
(Journal article; Peer reviewed, 2022)Seismic resolution and illumination issues are sources of challenges in the detailed imaging and detection of subsurface fault architecture and fluid migration. Improved constraints on resolution can provide input into ... -
Exploring the Microseismicity of the Gakkel Ridge from Arctic Sea Ice
(Master thesis, 2013-06-03)Monitoring of microseismicity is an important tool to understand the magmatism, tectonics and hydrothermal circulation of a mid-oceanic ridge. In the presence of sea ice, use of ocean bottom seismometers is not practical, ... -
Extending local magnitude ML to short distances
(Peer reviewed; Journal article, 2019)Local magnitudes calculated at stations less than 10 km from earthquakes in the British Isles are up to one unit of magnitude higher than local magnitudes calculated at more distant stations. This causes a considerable ... -
Extensional inheritance and surface processes as controlling factors of mountain belt structure
(Peer reviewed; Journal article, 2014-12)Surface processes and inherited structures are widely regarded as factors that strongly influence the evolution of mountain belts. The first-order effects of these parameters have been studied extensively throughout the ... -
Extent and Volume of Lava Flows Erupted at 9°50′N, East Pacific Rise in 2005–2006 From Autonomous Underwater Vehicle Surveys
(Journal article; Peer reviewed, 2022)Seafloor volcanic eruptions are difficult to directly observe due to lengthy eruption cycles and the remote location of mid-ocean ridges. Volcanic eruptions in 2005–2006 at 9°50′N on the East Pacific Rise have been well ... -
Facies Analysis and Sandbody Geometry of the Paleogene Battfjellet Formation, Central Western Nordenskiöld Land, Spitsbergen
(Master thesis, 2010)New sedimentological data from the central part of Nordenskiöld Land, Spitsbergen, contributes to the understanding of the depositional processes and sandbody geometry of the Battfjellet Formation (Eocene). A detailed ... -
Facies Architecture and Paleogeography of the Battfjellet Formation, Rypefjellet, Spitsbergen
(Master thesis, 2010-06-01)The shallow marine sandstones of the Battfjellet Fm are part of a regressive mega-sequence that represent the last stages of infilling of the Paleogene Central Basin in Spitsbergen. The Battfjellet Fm is believed to be of ... -
Facies composition and scaling of extensional faults in sedimentary rocks and its applications to modelling of fault zones
(Doctoral thesis, 2010-01-08) -
Facies model for a coarse-grained, tide-influenced delta: Gule Horn Formation (Early Jurassic), Jameson Land, Greenland
(Peer reviewed; Journal article, 2016-05-25)Tide-dominated deltas have an inherently complex distribution of heterogeneities on several different scales, and are less well-understood than their wave- and river-dominated counterparts. Depositional models of these ... -
Facies, palynostratigraphy and sequence stratigraphy of the Wilhelmøya Subgroup (Upper Triassic–Middle Jurassic) in western central Spitsbergen, Svalbard
(Peer reviewed; Journal article, 2019)The Wilhelmøya Subgroup (Norian–Bathonian) is considered as the prime storage unit for locally produced CO2 in Longyearbyen on the Arctic archipelago of Svalbard. We here present new drillcore and outcrop data and refined ... -
Fana har Norges første og beste naturarkiv fra varmetiden før siste istid
(Fana Historielag Årsskrift 2009, Chapter, 2009) -
Fault core and its geostatistical analysis: Insight into the fault core thickness and fault displacement
(Master thesis, 2017-06-23)Fault core is a high-strain zone of a fault, which accommodate intense deformation. Due to high strain, complex structures and intensely deformed fault rocks form in the fault core, which again affects the geometry and ...