Browsing NGU-publikasjoner by Subject "PLATETEKTONIKK"
Now showing items 1-7 of 7
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Compilation of geochronological data for Cenozoic volcanic activity on the African plate and for selected Northern African sedimentary basins
(NGU-Rapport (2012.014), Report, 2012)A compilation of published isotope geochronological data for Cenozoic volcanic \/ magmatic activity on the African plate and for part of the adjacent Antarctic plate was created within the African Plate project (TAP; ... -
Crustal structure of continental fragments
(NGU-Rapport (2015.018), Report, 2015)Continental fragments and microcontinents are blocks of continental crust rifted off of passive margins. These relatively unthinned regions (compared to the surrounding crust) offer a perplexing conundrum as to their ... -
Frontier science and exploration: the Atlantic-Arctic
(NGU-Rapport (2006.077), Report, 2006)Confidential until December 1, 2008A new kinematic model from the pre-breakup to present day has been developed for the Arctic-North Atlantic region. Using potential field data (magnetic and gravity), published seismic ... -
North Sea troughs and plate tectonics.
(NGU (316), Journal article, 1975)Interlinked roughly trilete-shaped predominantly sub-Upper Cretaceous trough systems extending north-south for more than 1200 km are described for the North Sea basin and the Northeast Atlantic. Palimpsest tectonic controls ... -
Scenarios of microcontinent formation applied to the Jan Mayen microcontinent
(NGU-Rapport (2015.019), Report, 2015)The Jan Mayen microcontinent is a small, unique, crustal entity that was separated from the Norwegian and Greenland margins by two distinct rifting events. Seafloor spreading along the Aegir Ridge separated Jan Mayen ... -
Subduction-related volcanism in the Gula Nappe, southeastern Trondheim Nappe Complex, Central Norway
(NGU Bulletin (428), Journal article, 1995)Field and geochemical evidence from two meta-igneous complexes that occur in the Einunnfjellet-Savalen area, southeastern Trondheim Nappe Complex, indicates that both complexes formes in an arc-related setting. Metabasalts ... -
The mantle under Africa: An overview of global and regional tomography models, lithosphere thickness models and their effect on present-day and past dynamic topography
(NGU-Rapport (2010.058), Report, 2010)The African plate is affected less by subduction than other plates and, as a consequence its surface experienced less subduction-related deformation while its mantle contains fewer subducted slabs. This region therefore ...