Počet záznamů: 1

High resolution stratigraphy of the Jurassic-Cretaceous boundary interval in the Gresten Klippenbelt (Austria)

  1. 1.
    0349405 - GLU-S 2011 RIV SK eng J - Článek v odborném periodiku
    Lukeneder, A. - Halásová, E. - Kroh, A. - Mayrhofer, S. - Pruner, Petr - Reháková, D. - Schnabl, Petr - Sprovieri, M. - Wagreich, M.
    High resolution stratigraphy of the Jurassic-Cretaceous boundary interval in the Gresten Klippenbelt (Austria).
    Geologica Carpathica. Roč. 61, č. 5 (2010), s. 365-381 ISSN 1335-0552
    Grant CEP: GA ČR GA205/07/1365
    Výzkumný záměr: CEZ:AV0Z30130516
    Klíčová slova: Jurassic/Cretaceous boundary * Penninic Ocean, * paleoecology * paleogeography * environmental changes
    Kód oboru RIV: DB - Geologie a mineralogie
    Impakt faktor: 0.909, rok: 2010

    The key objective of investigation of hemipelagic sediments from the Gresten Klippenbelt (Blassenstein Formation, Ultrahelvetic paleogeographic realm) was to shed light on environmental changes around the Jurassic-Cretaceous (J/K) boundary on the northern margin of the Penninic Ocean. The main lithological change is observed in the Upper Tithonian Crassicollaria Zone, in Chron M20N, whereas the J/K boundary can be precisely fixed at the Crassicollaria–Calpionella boundary, within Chron M19n.2n. The correlation with calcareous microfossil and nannofossil data combined with isotope and paleomagnetic data indicate the Tithonian to middle Berriasian (Hybonoticeras hybonotum Zone up to the Subthurmannia occitanica Zone; M17r–M21r). The succession of the Nutzhof section thus represents deposition of duration of approximately 7 Myr (ca. 150–143 Ma). Two reverse magneto-subzones, Kysuca and Brodno, were detected within magnetozones M20n and M19n, respectively.
    Trvalý link: http://hdl.handle.net/11104/0189656