Browsing HVL Open by Author "Dalslåen, Bjørgunn Heggem"
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Early - Middle Ordovician sedimentation and bimodal volcanism at the margin of Iapetus: the Trollhøtta–Kinna Basin of the central Norwegian Caledonides
Dalslåen, Bjørgunn Heggem; Gasser, Deta; Grenne, Tor; Augland, Lars Eivind; Andresen, Arild (Peer reviewed; Journal article, 2020)The late Neoproterozoic–Paleozoic Iapetus Ocean developed between Laurentia, Baltica, Siberia and Gondwana. Its Paleozoic closure history is recorded by volcano-sedimentary successions within the Caledonian orogen of ... -
Ordovician shoshonitic to ultrapotassic volcanism in the central Norwegian Caledonides: The result of sediment subduction, mantle metasomatism and mantle partial melting
Dalslåen, Bjørgunn Heggem; Gasser, Deta; Grenne, Tor; Augland, Lars Eivind; Corfu, Fernando (Peer reviewed; Journal article, 2020)Shoshonitic to ultrapotassic, mantle-derived volcanic rocks found within certain accretionary and collisional settings have trace element patterns comparable to those of common arc-related rocks, but with extreme enrichments ... -
The Skuggliberga unit of the Oppdal area, central Scandinavian Caledonides: Calc-alkaline pyroclastic volcanism in a fluvial to shallow-marine basin following a mid-ordovician orogenic event
Dalslåen, Bjørgunn Heggem; Gasser, Deta; Grenne, Tor; Ganerød, Morgan; Andresen, Arild (Peer reviewed; Journal article, 2021)We present field observations, geochemical data and detrital zircon U–Pb ages from the newly defined Skuggliberga unit of the Oppdal area, central Norwegian Caledonides. The unit occurs in two separate areas, where it ... -
Tectonic evolution of syn- to late-orogenic sedimentary- volcanic basins in the central Norwegian Caledonides
Stokke, Ella Wulfsberg; Gasser, Deta; Dalslåen, Bjørgunn Heggem; Grenne, Tor (Journal article; Peer reviewed, 2018)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 ...