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dc.date.accessioned2018-08-18T11:25:20Z
dc.date.available2018-08-18T11:25:20Z
dc.date.created2018-01-29T09:52:56Z
dc.date.issued2017
dc.identifier.citationBlischke, A Gaina, Carmen Hopper, J.R. Péron-Pinvidic, Gwenn Brandsdóttir, Bryndís Guarnieri, P Erlendsson, Ögmundur Gunnarsson, K. . The Jan Mayen microcontinent: an update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridge. Geological Society Special Publication. 2017, 447, 299-337
dc.identifier.urihttp://hdl.handle.net/10852/63184
dc.description.abstractWe present a revised tectonostratigraphy of the Jan Mayen microcontinent (JMMC) and its southern extent, with the focus on its relationship to the Greenland–Iceland–Faroe Ridge area and the Faroe–Iceland Fracture Zone. The microcontinent's Cenozoic evolution consists of six main phases corresponding to regional stratigraphic unconformities. Emplacement of Early Eocene plateau basalts at pre-break-up time (56–55 Ma), preceded the continental break-up (55 Ma) and the formation of seawards-dipping reflectors (SDRs) along the eastern and SE flanks of the JMMC. Simultaneously with SDR formation, orthogonal seafloor spreading initiated along the Ægir Ridge (Norway Basin) during the Early Eocene (C24n2r, 53.36 Ma to C22n, 49.3 Ma). Changes in plate motions at C21n (47.33 Ma) led to oblique seafloor spreading offset by transform faults and uplift along the microcontinent's southern flank. At C13n (33.2 Ma), spreading rates along the Ægir Ridge started to decrease, first south and then in the north. This was probably complemented by intra-continental extension within the JMMC, as indicated by the opening of the Jan Mayen Basin – a series of small pull-apart basins along the microcontinent's NW flank. JMMC was completely isolated when the mid-oceanic Kolbeinsey Ridge became fully established and the Ægir Ridge was abandoned between C7 and C6b (24–21.56 Ma).en_US
dc.languageEN
dc.publisherThe Geological Society Publishing House
dc.rightsAttribution 3.0 Unported
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.titleThe Jan Mayen microcontinent: an update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridgeen_US
dc.typeJournal articleen_US
dc.creator.authorBlischke, A
dc.creator.authorGaina, Carmen
dc.creator.authorHopper, J.R.
dc.creator.authorPéron-Pinvidic, Gwenn
dc.creator.authorBrandsdóttir, Bryndís
dc.creator.authorGuarnieri, P
dc.creator.authorErlendsson, Ögmundur
dc.creator.authorGunnarsson, K.
cristin.unitcode185,15,22,40
cristin.unitnameSenter for Jordens utvikling og dynamikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1554009
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geological Society Special Publication&rft.volume=447&rft.spage=299&rft.date=2017
dc.identifier.jtitleGeological Society Special Publication
dc.identifier.volume447
dc.identifier.startpage299
dc.identifier.endpage337
dc.identifier.doihttp://dx.doi.org/10.1144/SP447.5
dc.identifier.urnURN:NBN:no-65744
dc.type.documentTidsskriftartikkelen_US
dc.type.peerreviewedPeer reviewed
dc.source.issn0305-8719
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/63184/1/299.full.pdf
dc.type.versionPublishedVersion
dc.relation.projectNFR/223272


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