Blar i Department of Earth Science på tittel
Viser treff 274-293 av 868
-
Geological evolution and stratigraphic relationships of the ophiolitic terrane in the outer Hardangerfjord area: evidence from geochronology and geochemistry
(Master thesis, 2017-10-13)Field relations, geochemistry and U-Pb single zircon ages have provided new information about the rocks of the outer Hardangerfjord area that represent a part of the Upper Ordovician ophiolitic terrane of south-western ... -
Geometric controls of tidewater glacier dynamics
(Journal article; Peer reviewed, 2022)Retreat of marine outlet glaciers often initiates depletion of inland ice through dynamic adjustments of the upstream glacier. The local topography of a fjord may promote or inhibit such retreat, and therefore fjord geometry ... -
Geometries of doleritic intrusions in central Spitsbergen, Svalbard: an integrated study of an onshore-offshore magmatic province with implications for CO2 sequestration
(Peer reviewed; Journal article, 2013)Igneous intrusions emplaced during the Early Cretaceous are well exposed in central Spitsbergen within the Permian–Jurassic sedimentary succession. The doleritic intrusions are collectively classified as the Diabasodden ... -
The geometry and evolution of deformation bands in volcaniclastic rocks: insights from Eastern Taiwan
(Master thesis, 2018-04-17)Deformation bands are millimeter to centimeter tabular zones formed by strain localization in porous, granular media, most commonly found in porous sandstones. They also occur in carbonates and volcaniclastics, but are ... -
The Geometry and Evolution of Supra-Salt Normal Fault Arrays
(Doctoral thesis, 2016-06-22)The structural style and evolution of normal fault arrays above mobile salt is less understood compared to those developed in rifts where strong variations in mechanical stratigraphy are absent. This research was performed ... -
Geomorfologiske og kvartærgeologiske studier i og omkring midtre Gudbrandsdal
(Master thesis, 1962) -
Geophysical investigation of the Hugin Fracture, a soft-sediment seafloor fracture on the Utsira High, North Sea. Implications for subsurface fluid migration
(Doctoral thesis, 2019)The 2011 discovery of the Hugin Fracture, a 3.5 km long seafloor fracture on the Utsira High, shows that large-scale, unexpected features can still be found in ostensibly wellmapped, highly industrialized offshore areas ... -
Gjennom grottekartlegging og kjemiske analyser studere lengdesnittet av Plurdalen og dannelsen av Pluragrotta
(Master thesis, 2015-05-31)Denne oppgaven har hatt som formål å studere lengdesnittet av Plurdalen i Rana. Metoden har vært tredelt i form av grottekartlegging, lokalisering av erosjonsbasis og utføring av kjemiske vannanalyser. Det ble kartlagt ... -
Gjennom grottekartlegging, kjemiske analyser av litologien og strukturgeologiske målinger, danne en plausibel dannelsesmodell for Burfjellgrotta, Rana, Nordland
(Master thesis, 2014-06-02)Denne oppgaven er en del av Glomdalsprosjektet og er knyttet opp til nykartleggingen av Burfjellgrotta høsten 2012. Den har som formål å bidra til økt innsikt i glasial påvirkning på grottedannelse i høyereliggende områder. ... -
Glacier and ocean variability in Ata Sund, west Greenland, since 1400 CE
(Journal article; Peer reviewed, 2020)To improve knowledge of marine-terminating glaciers in western Greenland, marine sediment cores from the Ata Sund fjord system, hosting two outlet glaciers, Eqip Sermia and Kangilerngata Sermia, were investigated. The main ... -
Glacier dynamics in the fjords of Svalbard, inferred from submarine landforms and marine sediment cores
(Doctoral thesis, 2017-09-19)This thesis presents a reconstruction of the late Weichselian, deglacial and Holocene glacial history of the Svalbard fjords, focusing on eastern Svalbard. The study is based on high-resolution multibeam data, shallow ... -
Glacigenic sedimentation pulses triggered postglacial gas hydrate dissociation
(Peer reviewed; Journal article, 2018-02-12)Sediment cores from the south-eastern Nordic Seas simultaneously archive the variability of the Fennoscandian Ice Sheet (FIS), the British-Irish Ice Sheet (BIIS) and the regional oceanic conditions. This study aims to ... -
Global Cenozoic Paleobathymetry with a focus on the Northern Hemisphere Oceanic Gateways
(Journal article; Peer reviewed, 2020)The evolution of the Northern Hemisphere oceanic gateways has facilitated ocean circulation changes and may have influenced climatic variations in the Cenozoic time (66 Ma–0 Ma). However, the timing of these oceanic gateway ... -
Global Characterization of Modern Depositional Environments for Reservoir Analogues
(Doctoral thesis, 2015-05-12)The advent of significant volumes of freely available, global scale, remote sensing and Geographical Information Systems (GIS) data has revolutionized the study of modern depositional systems, especially with reference to ... -
Global Common Conversion Point Stacking and its Applications
(Master thesis, 2018-06-20)Imaging of globally varying subsurface structures is traditionally done by using seismic tomography to map large volumetric anomalies. Methods that image sharp discontinuities in seismic impedance have been restricted to ... -
A global ecological classification of coastal segment units: To complement marine biodiversity observation network assessments
(Journal article; Peer reviewed, 2021)A new data layer provides Coastal and Marine Ecological Classification Standard (CMECS) labels for global coastal segments at 1 km or shorter resolution. These characteristics are summarized for six US Marine Biodiversity ... -
Grain Deformation Processes in Porous Quartz Sandstones – Insight from the Clusters of Cataclastic Deformation Bands
(Peer reviewed; Journal article, 2017)Porous sandstones represent classical reservoirs for water or hydrocarbons. Deformation in such granular material is due to tectonic events and occurs through the process of cataclasis, implying the crushing of the grains ... -
Gravity modeling: Calculations based on porosity-density context
(Master thesis, 2010-06-17)A normal way to model the gravity from a layered model is to determine the densities from the velocities, and then adjusting the densities within acceptable ranges to get a satisfactory fit with the observed gravity. In ... -
Grenville-age continental arc magmatism and crustal evolution in central Dronning Maud Land (East Antarctica): Zircon geochronological and Hf-O isotopic evidence
(Peer reviewed; Journal article, 2020)This study focusses on the Grenville-age Maud Belt in Dronning Maud Land (DML), East Antarctica, which was located at the margin of the Proto-Kalahari Craton during the assembly of Rodinia. We present new U–Pb zircon ages ... -
Grottekartlegging og strukturgeologisk påvirkning på grottedannelse sør for Reingardslivatnet, Rana.
(Master thesis, 2016-06-01)Oppgaven utgjør sammen med Stadheim (2016) første ledd i det gjenopptatte forskningsarbeidet av de grotter som er lokalisert sør for Reingardslivatnet, Rana, som i utgangspunktet har vært fredet siden 6. Januar 1967. Den ...