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dc.contributor.authorMunoz Barrera, Jhon Meyer
dc.contributor.authorRotevatn, Atle
dc.contributor.authorGawthorpe, Robert Leslie
dc.contributor.authorHenstra, Gijs Allard
dc.contributor.authorBerg Kristensen, Thomas
dc.date.accessioned2022-01-31T12:12:10Z
dc.date.available2022-01-31T12:12:10Z
dc.date.created2022-01-17T14:55:21Z
dc.date.issued2022
dc.identifier.issn0950-091X
dc.identifier.urihttps://hdl.handle.net/11250/2975961
dc.description.abstractSupradetachment basins at passive rifted margins are a key witness of major-continental extension, and they may preserve a record from which the amount and rates of extension and metamorphic core complex exhumation may be reconstructed. These basins have mainly been recognised in back-arc and orogenic collapse settings, with few examples from rifted margins. Using 2D and 3D seismic reflection, wellbore, and gravity anomaly data, we here characterise the three-dimensional structural and tectonosedimentary evolution of a spoon-shaped supradetachment basin that was formed in the necking domain of a rifted margin, at the southern limit of the Møre and Vøring segments of the Norwegian rifted margin. The basin, with an areal extent of ca. 2400 km2, and a landward-rotated syn-tectonic succession up to ca. 30 km thick (true stratigraphic thickness), is separated from footwall continental margin core complex basement culminations by major large-offset (>30 km) normal fault complexes characterised by a cross-sectional geometry whereby an upper, steeper part of the fault gives way to a low-angle detachment fault at depth. These fault complexes are associated with a tectonic thinning of the continental crust to ca. 11 km, compared with a crustal thickness of ca. 27 km in the proximal domain. The basin is filled by a succession of pre-, syn- and post-tectonic deposits, that accumulated over time as the basin evolved over a series of rift- and detachment faulting events. The 30 km thick syn-tectonic succession reflects deposition during two separate rifting events, which are disconnected by deposits reflecting a relative short period of tectonic quiescence. The results are discussed in light of examples of supradetachment basins on other rifted margins globally, as well as in the context of the evolution of the Norwegian margin overall.en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.rightsNavngivelse-Ikkekommersiell 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/deed.no*
dc.titleSupradetachment basins in necking domains of rifted margins: Insights from the Norwegian Seaen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2021 The Authorsen_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.doi10.1111/bre.12648
dc.identifier.cristin1982780
dc.source.journalBasin Researchen_US
dc.source.pagenumber991-1019
dc.relation.projectNorges forskningsråd: 255229en_US
dc.identifier.citationBasin Research, 2022, 34 (3), 991-1019.en_US
dc.source.volume34
dc.source.issue3


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Navngivelse-Ikkekommersiell 4.0 Internasjonal
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