Blar i forfatter "Agić, Heda"
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Acritarchs from the Duolbagáisá Formation (Cambrian Series 2-Miaolingian) on the Digermulen Peninsula, Finnmark, Arctic Norway: towards a high-resolution Cambrian chronostratigraphy
Palacios, Teodoro; Högström, Anette; Ebbestad, Jan Ove R.; Agić, Heda; Høyberget, Magne; Jensen, Sören; Meinhold, Guido; Taylor, Wendy L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-24)New information on acritarchs from the Duolbagáisá Formation, Digermulen Peninsula, Arctic Norway, enable recognition of the three Cambrian Series 2 acritarch-based zones: the <i>Skiagia ornata–Fimbriaglomerella membranacea, Heliosphaeridium dissimilare–Skiagia ciliosa and Volkovia dentifera–Liepaina plana</i> Assemblage zones. Acritarchs of the <i>Skiagia ornata–Fimbriaglomerella membranacea</i> ... -
Late Ediacaran occurrences of the organic-walled microfossils Granomarginata and flask-shaped Lagoenaforma collaris gen. et sp. nov.
Agić, Heda; Högström, Anette; Jensen, Sören; Ebbestad, Jan Ove R.; Vickers-Rich, Patricia; Hall, Michael; Matthews, Jack J.; Meinhold, Guido; Høyberget, Magne; Taylor, Wendy L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-12)New occurrences of flask-shaped and envelope-bearing microfossils, including the predominantly Cambrian taxon Granomarginata, are reported from new localities, as well as from earlier in time (Ediacaran) than previously known. The stratigraphic range of Granomarginata extends into the Cambrian System, where it had a cosmopolitan distribution. This newly reported Ediacaran record includes areas from ... -
Rare earth elements and neodymium and strontium isotopic constraints on provenance switch and post-depositional alteration of fossiliferous Ediacaran and lowermost Cambrian strata from Arctic Norway.
Meinhold, Guido; Willbold, Matthias; Karius, Volker; Jensen, Sören; Agić, Heda; Ebbestad, Jan Ove R.; Palacios, Teodoro; Högström, Anette; Høyberget, Magne; Taylor, Wendy L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-16)The Digermulen Peninsula in northeastern Finnmark, Arctic Norway, comprises one of the most complete Ediacaran–Cambrian transitions worldwide with a nearly continuous record of micro- and macrofossils from the interval of the diversification of complex life. Here, we report on the provenance and post-depositional alteration of argillaceous mudstones from the Digermulen Peninsula using rare earth ... -
U-Pb dating of calcite in ancient carbonates for age estimates of syn-to post-depositional processes: A case study from the upper Ediacaran strata of Finnmark, Arctic Norway
Meinhold, Guido; Roberts, Nick M.W.; Arslan, Arzu; Jensen, Sören; Ebbestad, Jan Ove R.; Högström, Anette; Høyberget, Magne; Agić, Heda; Palacios, Teodoro; Taylor, Wendy L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-10)Results of in situ U–Pb dating of calcite spherulites, cone-in-cone (CIC) calcite and calcite fibres from a calcareous concretion of the upper Ediacaran of Finnmark, Arctic Norway, are reported. Calcite spherulites from the innermost layers of the concretion yielded a lower intercept age of 563 ± 70 Ma, which, although imprecise, is within uncertainty of the age of sedimentation based on fossil ...