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dc.contributor.authorKoehl, Jean-Baptiste P.
dc.contributor.authorAllaart, Lis
dc.date.accessioned2021-11-01T13:04:31Z
dc.date.available2021-11-01T13:04:31Z
dc.date.issued2021-10-13
dc.description.abstractThe Billefjorden Fault Zone is a major terrane boundary in the Norwegian Arctic. The fault separates basement rocks of Svalbard’s north-eastern and north-western terranes that recorded discrete Precambrian tectonothermal histories and were accreted, intensely deformed and metamorphosed during the Caledonian Orogeny. Although the fault represents a major, crustal-scale tectonic boundary, its north-ward extent is not well constrained. The present short contribution addresses this issue and presents new seismic mapping of structures and rock units north of Wijdefjorden, where the Billefjorden Fault Zone may continue. This study shows that there is no evidence for major faulting of the top-basement reflection, and therefore, that the Billefjorden Fault Zone may die out within Wijdefjorden–Austfjorden, step ≥ 20 km laterally, or be invisible on the presented seismic data. Seismic data also suggest that Caledonian basement rocks in Ny-Friesland (north-eastern terrane) are not significantly different from basement rocks below the Devonian Graben in Andrée Land (north-western terrane). Potential implica-tions include the absence of a major terrane boundary in northern Spitsbergen.en_US
dc.identifier.citationKoehl J-B, Allaart L. The Billefjorden Fault Zone north of Spitsbergen: a major terrane boundary?. Polar Research. 2021;40en_US
dc.identifier.cristinIDFRIDAID 1949486
dc.identifier.doi10.33265/polar.v40.7668
dc.identifier.issn0800-0395
dc.identifier.issn1751-8369
dc.identifier.urihttps://hdl.handle.net/10037/22902
dc.language.isoengen_US
dc.publisherNorwegian Polar Instituteen_US
dc.relation.journalPolar Research
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/FRINATEK/287865/Norway/Tectonic Stress Effects on Arctic Methane Seepage/SEAMSTRESS/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFF/223272/Norway/Centre for Earth Evolution and Dynamics/CEED/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/PETROSENTR/228107/Norway/Research Centre for Arctic Petroleum Exploration/ARCEx/en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450::Tectonics: 463en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Tektonikk: 463en_US
dc.titleThe Billefjorden Fault Zone north of Spitsbergen: a major terrane boundary?en_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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