Blar i Department of Earth Science på tittel
Viser treff 379-398 av 1139
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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 ... -
Global Recharge Data Set Indicates Strengthened Groundwater Connection to Surface Fluxes
(Journal article; Peer reviewed, 2022)Groundwater is an invaluable global resource, but its long-term viability as a resource for consumption, agriculture, and ecosystems depends on precipitation recharging aquifers. How much precipitation recharges groundwaters ... -
Global scale analysis on the extent of river channel belts
(Journal article; Peer reviewed, 2023)Rivers form channel belts that encompass the area of the river channel and its associated levees, bars, splays and overbank landforms. The channel belt is critical for understanding the physical river evolution through ... -
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 ... -
Grain-Size Analysis of the Late Pleistocene Sediments in the Corinth Rift: Insights into Strait Influenced Hydrodynamics and Provenance of an Active Rift Basin
(Journal article; Peer reviewed, 2022)Grain-size analysis of the sediments in borehole M0079A, which is located in the Corinth Rift, was used to explore hydrodynamic conditions and provenance in the Late Pleistcene Corinth Rift. Grain-size populations that ... -
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 ... -
Grenville–age orogeny in central Dronning Maud Land, East Antarctica: constraints from new zircon U–Pb data from Jutulsessen, Gjelsvikfjella
(Master thesis, 2020-06-24)The Mesoproterozoic Maud Belt within central Dronning Maud Land, East Antarctica, preserve important information about the tectonic setting along the eastern margin of the Kalahari Craton and is an essential key in both ... -
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 ... -
Grotter og grottedannelse i Plurdalen: Et tverrsnitt, Mo i Rana.
(Master thesis, 2015-06-01)Denne hovedfagsoppgaven omhandler grotter og grottedannelse langs et tverrsnitt av Plurdalen, i Nordland. Plurdalen er en dal med tydelige fluviale trekk, hvor mangelen på U-dalprofiler kan tyde på at den glasiale erosjonen ... -
Grotters strukturelle arkitektur - studium av Aspfjordgrotten, Fauske, Nordland
(Master thesis, 2019-06-26)Dannelsen av grotter i metamorfe karbonater er avhengig av at porer eksisterer i bergmassen pre-speleogenese. Porerom i form av sprekker og forkastninger er tett knyttet opp til tektonisk aktivitet. Avhengig av spenningsregimet, ... -
Ground penetrating radar for archaeology in Western Norway: Examples from Lyse Abbey and Fana burial mound
(Master thesis, 2021-06-01)In recent years, ground penetrating radar (GPR) has been an important geophysical tool in archaeological prospecting in Norway with discoveries of high interest such as viking ships and iron age settlements. Western Norway ... -
Growth and retreat of the last British–Irish Ice Sheet, 31 000 to 15 000 years ago: the BRITICE-CHRONO reconstruction
(Journal article; Peer reviewed, 2022)The BRITICE-CHRONO consortium of researchers undertook a dating programme to constrain the timing of advance, maximum extent and retreat of the British–Irish Ice Sheet between 31 000 and 15 000 years before present. The ... -
Growth of collisional orogens from small and cold to large and hot ‐ inferences from geodynamic models
(Journal article; Peer reviewed, 2021)It is well documented that the interplay between crustal thickening and surface processes determines growth of continent-continent collision orogens from small and cold to large and hot. Additionally, studies have demonstrated ... -
GrSMBMIP: intercomparison of the modelled 1980-2012 surface mass balance over the Greenland Ice Sheet
(Journal article; Peer reviewed, 2020)Observations and models agree that the Greenland Ice Sheet (GrIS) surface mass balance (SMB) has decreased since the end of the 1990s due to an increase in meltwater runoff and that this trend will accelerate in the future. ... -
Halokinetic modulation of sedimentary thickness and architecture: A numerical modelling approach
(Journal article; Peer reviewed, 2021)Subsurface salt flow can deform overlying strata and influence contemporaneous sedimentary systems. Studying salt-sediment interactions is challenging in the subsurface due to poor imaging adjacent to salt, and in the field ... -
Harnessing the potential of CT scanning to identify cryptotephra in sediment cores: a controlled experiment.
(Master thesis, 2019-12-20)Volcanic ash (tephra) is a powerful geochronological tool, called tephrochronology, as rapid widespread deposition in multiple environments allows for correlation of geological archives across vast areas. It can thus help ...