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dc.contributor.authorTorske, Tore
dc.coverage.spatialTRØNDELAG
dc.coverage.spatialMØRE OG ROMSDAL
dc.coverage.spatialTROMS OG FINNMARK
dc.date.accessioned2020-08-26T13:15:39Z
dc.date.available2020-08-26T13:15:39Z
dc.date.issued1975
dc.identifier.urihttps://hdl.handle.net/11250/2675035
dc.description.abstractBased on recent geological and geophysical information from the Norwegian\/Greenland Sea and North Sea areas, and on earlier geomorphological information interpreted in terms of regional drainage pattern evolution, it is concluded that the Møre-Jotunheimen and Norrbotten-Troms uplands may be erosional remnants of two large, pre-Tertiary, mantle plume-generated domal uplifts. These were centred on the adjacent parts of the present continental shelf and slope, where linear gravity highs and elongate sedimentary troughs may represent mantle plume-generated mafic intrusions and rifts. The mantle plume activity probably occurred in mesozoic time, possibly in the Jurassic, long before the onset of Early Tertiary ocean-floor spreading in the Norwegian\/Greenland Sea area. The inferred rifts and intrusions appear to form a northern extension of pre-splitting tectonic activity along the present North American and north-west European Atlantic margin.
dc.language.isoeng
dc.relation.ispartofseriesNGU (322)
dc.rightsNavngivelse 4.0 Internasjonal
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no
dc.subjectDRENERING
dc.subjectTERTIÆR
dc.subjectMESOZOIKUM
dc.subjectGEOMORFOLOGI
dc.titlePossible Mesozoic mantle plume activity beneath the continental margin of Norway.
dc.typeJournal article
dc.description.localcode34858
dc.source.pagenumber73-90


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal