Browsing Bergen Open Research Archive by Author "Thomas, Robert J."
Now showing items 1-2 of 2
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A geochronological review of magmatism along the external margin of Columbia and in the Grenville-age orogens forming the core of Rodinia
Johansson, Åke; Bingen, Bernard; Huhma, Hannu; Waight, Tod; Vestergaard, Rikke; Soesoo, Alvar; Skridlaite, Grazina; Krzeminska, Ewa; Shumlyanskyy, Leonid; Holland, Mark E.; Holm-Denoma, Christopher; Teixeira, Wilson; Faleiros, Frederico M.; Ribeiro, Bruno V.; Jacobs, Joachim; Wang, Cheng-Cheng; Thomas, Robert J.; Macey, Paul H.; Kirkland, Christopher L.; Hartnady, Michael I.H.; Eglington, Bruce M.; Puetz, Stephen J.; Condie, Kent C. (Journal article; Peer reviewed, 2022)A total of 4344 magmatic U-Pb ages in the range 2300 to 800 Ma have been compiled from the Great Proterozoic Accretionary Orogen along the margin of the Columbia / Nuna supercontinent and from the subsequent Grenvillian ... -
Grenville-age continental arc magmatism and crustal evolution in central Dronning Maud Land (East Antarctica): Zircon geochronological and Hf-O isotopic evidence
Wang, Cheng-Cheng; Jacobs, Joachim; Elburg, Marlina A.; Läufer, Andreas; Thomas, Robert J.; Elvevold, Synnøve (Peer reviewed; Journal article, 2020)This study focusses on the Grenville-age Maud Belt in Dronning Maud Land (DML), East Antarctica, which was located at the margin of the Proto-Kalahari Craton during the assembly of Rodinia. We present new U–Pb zircon ages ...