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Grenvillian and Caledonian evolution of eastern Svalbard - a tale of two orogenies
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2005 (English)In: Terra Nova, ISSN 0954-4879, E-ISSN 1365-3121, Vol. 17, no 4, 317-325 p.Article in journal (Refereed) Published
Abstract [en]

Svalbard is located in the north-west corner of the Barents Sea shelf and the Eurasian Plate, in a key area for interpreting Caledonian and older orogens in the Arctic region. Recent U-Pb dating in the Nordaustlandet Terrane of eastern Svalbard shows this terrane to consist of a Grenville-age basement, overlain by Neoproterozoic to early Palaeozoic platformal sediments, and intruded by Caledonian anatectic granites. Deformation, metamorphism and crustal anatectic magmatism occurred both during the Grenvillian (960-940 Ma) and Caledonian (450-410 Ma) orogenies. This evolution shows great similarities with that of eastern Greenland. In the classical model, eastern Svalbard is placed outboard of central east Greenland in pre-Caledonian time. Alternatively, it may have been located north-east of Greenland and transferred west and rotated anticlockwise during Caledonian continent-continent collision. In the Neoproterozoic, easternmost Svalbard may have been part of a wider area of Grenville-age crust, now fragmented and dispersed around the Arctic.

Place, publisher, year, edition, pages
Swedish Museum Nat Hist, Lab Isotope Geol, SE-10405 Stockholm, Sweden. Uppsala Univ, Dept Earth Sci, SE-75236 Uppsala, Sweden. Norwegian Polar Res Inst, IASC, NO-0302 Oslo, Norway. Polar Marine Geol Expedit, Lomonosov 189510, Russia., 2005. Vol. 17, no 4, 317-325 p.
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Natural Sciences
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SWEDARCTIC
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URN: urn:nbn:se:polar:diva-3409DOI: 10.1111/j.1365-3121.2005.00616.xISI: 000230602400003OAI: oai:DiVA.org:polar-3409DiVA: diva2:1077432
Available from: 2017-02-27 Created: 2017-02-27 Last updated: 2017-02-27

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CiteExportLink to record
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Citation style
  • apa
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