Show simple item record

dc.contributor.authorFredin, Ola
dc.contributor.authorViola, Giulio
dc.contributor.authorZwingmann, Horst
dc.contributor.authorSørlie, Ronald
dc.contributor.authorBrönner, Marco
dc.contributor.authorLie, Jan-Erik
dc.contributor.authorGrandal, Else Margrethe
dc.contributor.authorMüller, Axel Bernd
dc.contributor.authorMargreth, Annina
dc.contributor.authorVogt, Christoph
dc.contributor.authorKnies, Jochen
dc.date.accessioned2018-01-06T13:01:06Z
dc.date.available2018-01-06T13:01:06Z
dc.date.issued2017-04-28
dc.description.abstractIn-situ weathered bedrock, saprolite, is locally found in Scandinavia, where it is commonly thought to represent pre-Pleistocene weathering possibly associated with landscape formation. The age of weathering, however, remains loosely constrained, which has an impact on existing geological and landscape evolution models and morphotectonic correlations. Here we provide new geochronological evidence that some of the low-altitude basement landforms on- and offshore southwestern Scandinavia are a rejuvenated geomorphological relic from Mesozoic times. K-Ar dating of authigenic, syn-weathering illite from saprolitic remnants constrains original basement exposure in the Late Triassic (221.3±7.0–206.2±4.2 Ma) through deep weathering in a warm climate and subsequent partial mobilization of the saprolitic mantle into the overlying sediment cascade system. The data support the bulk geomorphological development of west Scandinavia coastal basement rocks during the Mesozoic and later, long-lasting relative tectonic stability. Pleistocene glaciations played an additional geomorphological role, selectively stripping the landscape from the Mesozoic overburden and carving glacial landforms down to Plio–Pleistocene times. Saprolite K-Ar dating offers unprecedented possibilities to study past weathering and landscape evolution processes.en_US
dc.descriptionSource at <a href=http://dx.doi.org/10.1038/ncomms14879> http://dx.doi.org/10.1038/ncomms14879 </a>en_US
dc.identifier.citationFredin O, Viola G, Zwingmann H, Sørlie R, Brönner M, Lie J, Grandal EM, Müller A, Margreth A, Vogt C, Knies J. The inheritance of a Mesozoic landscape in western Scandinavia. Nature Communications. 2017;8:1-11en_US
dc.identifier.cristinIDFRIDAID 1467223
dc.identifier.doi10.1038/ncomms14879
dc.identifier.issn2041-1723
dc.identifier.urihttps://hdl.handle.net/10037/11916
dc.language.isoengen_US
dc.publisherNature Publishing Groupen_US
dc.relation.journalNature Communications
dc.relation.projectIDNorges forskningsråd: 223259en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Mineralogi, petrologi, geokjemi: 462en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450::Mineralogy, petrology, geochemistry: 462en_US
dc.titleThe inheritance of a Mesozoic landscape in western Scandinaviaen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


File(s) in this item

Thumbnail

This item appears in the following collection(s)

Show simple item record