dc.date.accessioned | 2020-01-16T08:52:43Z | |
dc.date.available | 2020-01-16T08:52:43Z | |
dc.date.created | 2018-04-23T13:41:36Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Stokke, Ella Wulfsberg Gasser, Deta Dalslåen, Bjørgunn Heggem Grenne, Tor . Tectonic evolution of syn- to late-orogenic sedimentary- volcanic basins in the central Norwegian Caledonides. Journal of the Geological Society. 2018, 175(4), 605-618 | |
dc.identifier.uri | http://hdl.handle.net/10852/72232 | |
dc.description.abstract | We present new structural, geochemical and U–Pb zircon data from syn- to late-orogenic sedimentary–volcanic basins in the southwestern part of the Trondheim Nappe Complex, central Norwegian Caledonides. In this area, a succession of enriched mid-ocean ridge basalt type metabasalt, jasper, ribbon chert with associated sandstone and conglomerate, and green siltstone is interpreted to represent volcanism and sedimentation in a hitherto little-known spreading-dominated tectonic environment. This environment is different from the suprasubduction-zone ophiolite setting dominating the Iapetus rock record elsewhere in the Scandinavian Caledonides. This volcanic and sedimentary succession was overturned and isoclinally folded in a pre-427 Ma orogenic phase. Post-427 Ma cross-bedded sandstones were deposited on the eroded surface of the previously deformed rocks, representing a rare example of a late Silurian or younger sedimentary basin within the Scandinavian Caledonides. The cross-bedded sandstones are intercalated with and/or overlain by post-427 Ma intermediate volcanic or subvolcanic rocks of calc-alkaline composition, representing a hitherto unknown volcanic phase within the Trondheim Nappe Complex and elsewhere within the Scandinavian Caledonides. Their particular geochemical signature could be the result of late-stage subduction-zone volcanism just prior to the onset of continent–continent collision between Baltica and Laurentia, or much younger post-collisional extensional melting with inherited subduction signatures. | en_US |
dc.language | EN | |
dc.language.iso | en | en_US |
dc.title | Tectonic evolution of syn- to late-orogenic sedimentary- volcanic basins in the central Norwegian Caledonides | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Stokke, Ella Wulfsberg | |
dc.creator.author | Gasser, Deta | |
dc.creator.author | Dalslåen, Bjørgunn Heggem | |
dc.creator.author | Grenne, Tor | |
cristin.unitcode | 185,15,22,40 | |
cristin.unitname | Senter for Jordens utvikling og dynamikk | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1581002 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of the Geological Society&rft.volume=175&rft.spage=605&rft.date=2018 | |
dc.identifier.jtitle | Journal of the Geological Society | |
dc.identifier.volume | 175 | |
dc.identifier.issue | 4 | |
dc.identifier.startpage | 605 | |
dc.identifier.endpage | 618 | |
dc.identifier.doi | https://doi.org/10.1144/jgs2017-091 | |
dc.identifier.urn | URN:NBN:no-75345 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0016-7649 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/72232/2/Stokke%2Betal_Tectonic%2Bevoluton%2Bof%2BDugurdsknappen_Postprint.pdf | |
dc.type.version | AcceptedVersion | |